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Semaglutide is a GLP-1 receptor agonist, a peptide that mimics glucagon-like peptide-1, a hormone your body naturally releases after eating. By activating the same receptors, Semaglutide signals fullness to the brain, slows how quickly the stomach empties, and supports more stable blood sugar between meals. The practical effect most patients describe is simple: the constant background noise around food gets quieter. Portions shrink naturally, cravings lose their grip, and decisions about what to eat start to feel like choices rather than battles.
Semaglutide is typically administered as a once-weekly subcutaneous injection, with the dose gradually increased over several weeks to support comfort and minimize digestive side effects as your body adjusts. Because the medication works alongside your habits rather than replacing them, results build steadily, and most patients notice appetite changes within the first few weeks, with meaningful body composition changes developing over the following months.
At SKINNEY Medspa, Semaglutide is prescribed and monitored under medical supervision, with regular check-ins to fine-tune your dose and protocol. Many patients pair it with supportive peptides like B12 or NAD+ for energy, or Tesamorelin for targeted visceral fat support, as part of a custom stack. If you have spent years feeling like your appetite runs the show, this is often the peptide that finally changes the conversation.
Tirzepatide is a dual-agonist peptide, meaning it activates two metabolic pathways at once: GLP-1, the hormone pathway that signals fullness and supports stable blood sugar, and GIP, a second hormone involved in how your body processes and stores energy. Engaging both receptors simultaneously is what sets Tirzepatide apart. The combination may support appetite regulation, insulin sensitivity, and overall metabolic efficiency in a way that single-pathway peptides cannot match on their own.
In practice, patients often describe Tirzepatide as a more comprehensive reset. Hunger quiets down, energy feels steadier throughout the day, and the body seems more willing to release the weight it has been holding on to. It is a frequent choice for patients who have plateaued on other approaches, as well as those navigating insulin resistance alongside their weight goals.
Tirzepatide is administered as a once-weekly subcutaneous injection, with the dose increased gradually under medical supervision to keep side effects manageable as your body adjusts. Appetite changes are often noticeable within the first few weeks, while meaningful body composition changes develop over months of consistent therapy.
Our providers will help you decide whether Tirzepatide is best used as a standalone protocol or as the anchor of a broader custom stack, and will monitor your progress through regular check-ins. For many patients, this is the peptide that finally makes their metabolism feel like a partner instead of an opponent.
Tesamorelin is a growth hormone-releasing hormone (GHRH) analog, meaning it signals your pituitary gland to increase your body's own natural growth hormone production. That distinction matters: rather than introducing synthetic growth hormone, Tesamorelin works upstream, encouraging your body to do more of what it already does, just at levels closer to those of your younger years.
What makes Tesamorelin stand out in the weight loss category is its specificity. It has been most studied for its effect on visceral fat, the deep abdominal fat that wraps around the organs and is most closely associated with metabolic health concerns. This is the fat that often refuses to budge with diet and exercise alone, and the kind that changes how clothes fit even when the scale barely moves. Patients focused on a flatter, tighter midsection, rather than a smaller number, are often the ones who gravitate here.
Tesamorelin is administered as a subcutaneous injection, typically daily, with protocols tailored to your goals. Because it works through your body's own hormone production, changes develop gradually over weeks to months of consistent use. Tesamorelin is often layered into GLP-1 protocols for patients who want both appetite support and targeted body-composition change, a combination designed to address both scale and silhouette at the same time.
AOD-9604 is a peptide fragment derived from human growth hormone, specifically, the small region of the growth hormone molecule associated with fat metabolism. By isolating that fragment, AOD-9604 may support the breakdown of stored fat and discourage new fat storage, without the broader hormonal activity of full growth hormone. That focused mechanism is exactly why it appeals to patients building advanced protocols: it does one job, and it stays in its lane.
AOD-9604 tends to enter the conversation when the fundamentals are already in place. Patients are eating well, staying active, perhaps already on a GLP-1 protocol, yet still find that certain areas, most often around the waistline, are not responding as the rest of the body has. Because AOD-9604 may support fat metabolism while preserving lean muscle mass, it is a popular addition for patients who care as much about body composition as body weight.
It is typically administered as a subcutaneous injection, with dosing and timing built around your broader protocol. As with most peptides in this category, changes are gradual and build with consistency over weeks to months. In practice, AOD-9604 is most often a supporting player in a custom stack rather than a standalone therapy, one targeted tool within a protocol designed around your specific goals, your body, and the results you actually want to see.
Lipo-C is a blend of lipotropic compounds and amino acids designed to support fat metabolism, and it works a little differently than the other peptides in this category. Rather than acting on a single hormone pathway, Lipo-C combines several nutrients that play supporting roles in how your body processes fat, including compounds that may support liver function, the organ at the center of your metabolic engine. When the liver is processing efficiently, the whole system tends to run better: fat metabolism, energy production, and the way your body handles what you eat.
That supporting-role identity is exactly how Lipo-C is most often used. It is rarely the star of a protocol; it is the steady teammate that helps everything else perform. Patients on GLP-1 therapies frequently add Lipo-C for a more comprehensive approach to body composition, pairing the appetite regulation of a GLP-1 with the blend's metabolic and energy support. Others reach for it simply because it offers a clean lift, no stimulants, no jittery edge, just a system that feels like it is running the way it should.
Lipo-C is typically administered as a quick injection, often on a weekly cadence, and it slots easily into nearly any protocol. Our providers will determine whether Lipo-C belongs in your stack and how to time it alongside your other peptides. For patients rebuilding their metabolism, it is one of the easiest additions to say yes to.
Sermorelin is a growth hormone-releasing hormone (GHRH) analog, meaning it signals your pituitary gland to produce more of your body's own growth hormone. As you age, natural growth hormone production declines steadily, and with it, the easy recovery, deep sleep, and effortless energy you may remember from your twenties. Sermorelin works upstream of all of that, encouraging your own production rather than replacing it, which is why it is widely considered one of the most approachable ways to start peptide therapy.
Because growth hormone touches so many systems, patients often notice improvements across several areas at once: deeper, more restorative sleep is usually the first change, followed by better recovery from workouts, steadier energy, and gradual improvements in skin quality and body composition. Nothing about it feels dramatic, which is exactly the appeal. It nudges your biology back toward how it used to operate.
Sermorelin is typically administered as a small subcutaneous injection at night, timed to support your body's natural overnight growth hormone pulse. Changes build gradually, with most patients noticing improvements in sleep and recovery within the first several weeks, and broader benefits developing over months of consistent use.
At SKINNEY Medspa, Sermorelin is often the foundation of an anti-aging protocol, frequently paired with peptides such as CJC-1295 or Ipamorelin for an amplified effect. If you are new to peptides and unsure where to begin, this is the one our providers will likely mention first.
CJC-1295 is a growth hormone-releasing hormone analog, similar in spirit to Sermorelin but engineered for staying power. Its structure allows it to remain active in the body longer, which extends the natural pulses of growth hormone your pituitary gland releases. Instead of a brief signal, your body gets a sustained one, supporting elevated growth hormone and IGF-1 levels over days rather than hours.
That sustained signal is what high performers tend to notice. Recovery between workouts improves, sleep feels deeper and more productive, and the general wear of long days, travel, and constant output stops accumulating as quickly. Over time, CJC-1295 may also support skin quality, lean muscle maintenance, and the kind of overall resilience that makes a demanding schedule feel sustainable again.
CJC-1295 is administered as a subcutaneous injection, with frequency depending on your protocol. Its longer-acting nature means fewer injections than with shorter-acting peptides. It is very commonly paired with Ipamorelin, which stimulates growth hormone release through a complementary pathway; together, the two create a stronger, more synchronized pulse than either produces alone.
Protocols are tailored to your recovery goals, training load, and lifestyle, and adjusted as your body responds. For patients who feel like they are running hard but recovering slowly, this is one of the most requested tools in the anti-aging category.
Ipamorelin stimulates your pituitary gland to release growth hormone, but what makes it special is the word selective. Many compounds that trigger growth hormone release also spike other hormones along the way, cortisol, the stress hormone, and ghrelin, the hunger hormone, which can leave patients feeling wired or ravenous. Ipamorelin targets the growth hormone pathway almost exclusively, delivering the benefits without those side effects. That precision is why patients describe it as the cleanest-feeling option in the category.
The benefits follow the growth hormone playbook: improved recovery, deeper sleep, support for lean muscle tone, and gradual improvements in skin firmness. Because it works with your body's natural release patterns rather than overriding them, the effects feel like an upgrade to your own baseline rather than something artificial layered on top.
Ipamorelin is administered as a small subcutaneous injection, typically at night to align with your natural overnight growth hormone release. It is most often paired with CJC-1295; the two work through complementary mechanisms, and the combination has become one of the most popular pairings in modern peptide therapy.
Ipamorelin is a staple of our customized anti-aging and recovery protocols, especially for patients who want growth hormone support without feeling like they are taking something aggressive. If gentle and effective is your speed, this is the peptide that fits.
Epitalon is a short, four-amino-acid peptide studied for its relationship to telomeres, the protective caps on the ends of your chromosomes that shorten each time a cell divides. Telomere length is one of the most discussed markers in longevity science, because shorter telomeres are associated with cellular aging. Epitalon has been studied for its potential to support telomerase activity, the enzyme that helps maintain those protective caps, which is why it has become a fixture in serious longevity conversations.
Beyond the telomere story, Epitalon has also been explored for its effects on the pineal gland and melatonin regulation, which is why some patients report deeper, more consistent sleep, along with the steadier energy and recovery that follow. The overall picture is less about a single dramatic effect and more about supporting the systems that keep cells repairing and renewing as in younger biology.
Epitalon is typically administered by injection in cycles, concentrated courses followed by breaks, rather than continuous daily use, with protocols tailored under medical supervision. As with all longevity-focused peptides, we will be straightforward about what current research does and does not yet establish.
Patients drawn to Epitalon tend to be the ones already invested in healthy aging, tracking their sleep, optimizing their routines, and thinking in decades rather than months. If that is you, this is one of the most interesting peptides on the menu.
MOTS-c is a unique peptide with an unusual origin: it is encoded in your mitochondrial DNA, the DNA inside the tiny power plants that produce energy in nearly every cell of your body. Researchers sometimes describe MOTS-c as a mitochondrial signaling peptide because it helps coordinate communication between your mitochondria and the rest of the cell, influencing how efficiently your body produces and uses energy.
That efficiency angle is exactly why patients gravitate to it. Many people in their thirties, forties, and beyond describe the same feeling: nothing is wrong exactly, but everything takes more effort. Workouts that used to energize now drain. Recovery takes longer. Energy dips arrive earlier in the day. MOTS-c has been studied for its role in metabolic regulation, exercise capacity, and insulin sensitivity, the cellular machinery behind that feeling of running efficiently.
MOTS-c is administered as a subcutaneous injection, with dosing protocols tailored to your goals, often in cycles. Patients commonly pair it with NAD+ for a more comprehensive approach to cellular energy, or fold it into broader vitality and performance stacks.
Protocols are designed around how you actually feel and perform, not just lab numbers, and we will adjust yours as your body responds. For patients who miss the version of themselves that ran on all cylinders, this is one of the most compelling tools in the category.
NAD+ (nicotinamide adenine dinucleotide) is a coenzyme found in every living cell, and it sits at the center of two processes you cannot live without: converting food into cellular energy, and supporting the enzymes that repair DNA and regulate cellular aging. The catch is that NAD+ levels decline significantly with age, by some estimates dropping to half by middle age, and chronic stress, poor sleep, and overstimulation accelerate the slide. That decline is increasingly linked to fatigue, brain fog, and slower recovery, so many people chalk it up to simply getting older.
NAD+ therapy replenishes those levels directly. Patients commonly report steadier, cleaner energy, no caffeine spike and crash, along with sharper focus, better stress tolerance, and improved recovery. Because NAD+ supports such fundamental cellular machinery, the effects tend to feel broad rather than targeted: less like taking a stimulant, more like the lights coming back on.
Our subcutaneous injection option delivers NAD+ efficiently in a quick appointment, with protocols typically built around regular sessions, weekly or biweekly at first, then maintenance as your levels stabilize. Many patients pair NAD+ with MOTS-c for deeper mitochondrial support or fold it into a broader vitality stack.
NAD+ is one of our most requested wellness therapies and one of the few in which patients often feel the difference quickly. If you are running on fumes and caffeine has stopped helping, this is where to start.
The NAD+ nasal spray is the take-home companion to our injection protocols, a convenient delivery option designed to support brain health, focus, and energy on a daily basis. While injections deliver a concentrated dose in-office, the nasal spray provides smaller, steady support you administer yourself, wherever your day takes you.
The nasal route has particular appeal for cognitive support. Patients often reach for the spray on demanding days, before a long stretch of meetings, during travel, or in that afternoon window when focus usually fades. Because it takes seconds and requires no appointment, it fits into real life in a way few wellness therapies do.
Most patients use the nasal spray as part of a layered NAD+ protocol: injections to build and restore levels, the spray to maintain them between sessions. Used consistently, it helps smooth out the peaks and valleys, so the clear, energized feeling from your sessions becomes more of a baseline than an event.
Your peptide therapy specialist will help you decide whether the nasal spray belongs in your protocol and how to use it alongside your other therapies. For busy New Yorkers who want their NAD+ support to travel with them, this is the easiest yes on the menu.
B12 methylcobalamin is the active, most bioavailable form of vitamin B12, the form your body can use immediately without conversion. B12 plays a role in some of your body's most fundamental work: producing energy at the cellular level, supporting neurological function, and building the healthy red blood cells that carry oxygen throughout your body. When levels run low, which is common among people with restrictive diets, high stress, or absorption issues, the result is the familiar drag of fatigue, fog, and feeling perpetually behind on rest.
Injection delivery matters here. Oral B12 has to survive digestion, where much of it is lost; an injection delivers the full dose directly, which is why patients often notice the difference within days, steadier energy, clearer thinking, and a lift in overall stamina.
In peptide protocols, B12 plays the supporting role almost everything else builds on. It pairs naturally with GLP-1 therapies, where it helps sustain energy through weight loss, and it slots into vitality, recovery, and cognitive stacks with equal ease. It also appears in several of our signature stacks for exactly that reason.
If your protocol were a house, this would be the concrete: simple, foundational, and holding everything else up. Quick to administer, easy to feel, and the lowest-commitment way to start feeling better fast.
BPC-157 is a synthetic peptide derived from a protective protein naturally found in the stomach, which explains its unusual dual reputation: it has been studied for both musculoskeletal recovery and gut health. Researchers have explored its role in angiogenesis, the formation of new blood vessels, which is central to how the body repairs tendons, ligaments, and other tissues that normally heal slowly because of their limited blood supply.
That slow-healing-tissue angle is why BPC-157 became the cornerstone of the recovery category. Tendon and ligament injuries are notoriously stubborn, lingering for months while muscle injuries resolve in weeks. Patients dealing with nagging tendonitis, joint discomfort, or post-surgical recovery are the ones who most often ask about it, along with active people who simply want to support the wear and tear of training. Its strong anti-inflammatory properties and gut-supportive history have also made it popular with patients managing digestive concerns alongside physical ones.
BPC-157 is typically administered as a subcutaneous injection, often in cycles aligned with your recovery timeline, and protocols are tailored under medical supervision. Many patients pair it with TB-500; the two work through complementary mechanisms and have become the signature pairing of recovery peptide therapy.
If your body has a spot that never quite finishes healing, this is usually the first peptide in the conversation.
TB-500 is the synthetic version of Thymosin Beta-4, a naturally occurring peptide found in nearly every cell of the body, with especially high concentrations in wound fluid and blood platelets, the places where healing happens. Its primary mechanism involves actin, a protein essential to how cells move, rebuild, and organize during tissue repair. By supporting cellular migration, TB-500 has been studied for its potential roles in flexibility, tissue regeneration, and modulation of inflammation.
Where BPC-157 is often described as targeted, working on the specific injured area, TB-500 is considered more systemic, supporting recovery throughout the body. That distinction is exactly why the two are so often combined: one local, one global, covering the full territory of healing. Patients in comprehensive recovery protocols, athletes managing training loads, and anyone working through stubborn soft-tissue issues tend to land on this combination.
TB-500 is administered as a subcutaneous injection, typically in cycles, with a loading phase followed by maintenance, tailored to your recovery goals under medical supervision. Improvements in mobility and how tissues feel tend to build gradually over weeks of consistent use.
In practice, TB-500 rarely works alone. Our providers will usually discuss it alongside BPC-157 as part of a complete recovery plan, two peptides, one mission: getting you back to moving the way you want to.
Pentadeca Arginate is a next-generation peptide closely related to BPC-157, built on the same 15-amino-acid backbone but stabilized as an arginate salt, a refinement designed to improve stability and consistency. Think of it as the modern iteration of the recovery category's founding molecule: the same regenerative focus, updated chemistry.
Like its predecessor, PDA has been explored for tissue repair, modulation of inflammation, and overall support for recovery. Patients and providers have gravitated to it for the same reasons BPC-157 became a staple: support for tendons, joints, muscles, and the slow-healing tissues that frustrate active people most, with the appeal of a newer, more refined formulation. For patients who have already used BPC-157 and want to explore what comes next, PDA is usually the answer.
PDA is typically administered as a subcutaneous injection, with cycles and dosing tailored to your recovery goals under medical supervision. Because it is one of the newest options in the category, we will be straightforward about what current research does and does not yet establish, so you can make an informed decision.
We most often see PDA in advanced recovery stacks, sometimes alongside BPC-157 and TB-500, sometimes in place of them. For patients who like being early to what works, this is the recovery peptide to watch.
Thymosin Alpha-1 is a peptide originally isolated from the thymus gland, the organ that trains your immune system's T-cells, and it has been studied extensively for its role in immune regulation. Rather than simply stimulating the immune system, Thymosin Alpha-1 is better described as a modulator: it has been explored for its ability to help the immune system respond appropriately, more active where needed, more measured where overreaction causes problems.
That balancing act is what makes it relevant far beyond cold-and-flu season. Chronic stress, poor sleep, frequent travel, and relentless schedules all tax immune function in ways that show up as run-down weeks, lingering bugs, and slow bounce-backs. Patients who feel like they catch everything going around, or who want to support resilience through demanding seasons of life, are the ones who most often explore it. It also appears in broader wellness protocols for patients focused on long-term immune health.
Thymosin Alpha-1 is administered as a subcutaneous injection, typically a few times per week in cycles, with protocols tailored under medical supervision to your health history and goals.
Among the recovery peptides, this is the quiet one, less about healing a specific injury, more about keeping the whole system steady. For patients whose calendar never lets up, that steadiness is the entire point.
GHK-Cu is a naturally occurring copper peptide found in human plasma, saliva, and urine, and its claim to fame is a discovery that shaped modern regenerative skincare: its levels decline dramatically with age, falling by more than half between your twenties and your sixties. That decline parallels the changes most people notice in their skin: slower repair, thinner texture, and lost firmness, which is why restoring GHK-Cu has become such an active area of skin science.
The peptide has been studied for a remarkably broad set of skin functions: supporting collagen and elastin production, promoting skin firmness and texture, aiding tissue repair, and encouraging healthy hair growth. That breadth is why it shows up in so many contexts, anti-aging protocols, hair restoration plans, and post-procedure recovery after treatments like microneedling, where it may support the skin's rebuilding process during the healing window.
GHK-Cu is available in multiple forms, including topical applications and injectable protocols, and your peptide therapy specialist will recommend the delivery method that fits your goals, whether that is overall skin quality, a targeted concern, or faster bounce-back between aesthetic treatments.
For patients already investing in their skin through facials, microneedling, or other treatments, GHK-Cu is one of the most natural additions to the plan, the peptide working from within while your treatments work from the surface.
Argireline, technically Acetyl Hexapeptide-8, earned its nickname honestly: it works on the same general principle as injectable neurotoxins, just from a different direction. Applied topically, Argireline has been studied for its ability to interfere with the chemical signals that trigger facial muscle contraction. Less repetitive contraction means less repeated creasing, which over time may soften the look of expression lines, the forehead lines, crow's feet, and frown lines that deepen with every smile, squint, and raised eyebrow.
To set expectations honestly: Argireline is not a replacement for Botox, and its effects are gentler and more gradual. That is precisely its appeal for the right patient. It suits people who are not ready for injectables, who want to extend and support the results between Botox appointments, or who simply want their daily skincare to do more than just moisturize.
As a topical peptide, Argireline fits effortlessly into an existing routine, no appointments, no needles, no downtime, just consistent daily use, with results that build over weeks to months.
Our specialists can help you decide where Argireline fits, whether as a first step into line-softening, a between-appointments companion, or one ingredient in a broader skin protocol built around your goals.
Matrixyl 3000 is a combination of two matrikines, peptide fragments that act as messengers in the skin's repair system. When collagen breaks down, fragments like these are part of how the skin signals itself to rebuild. Matrixyl 3000 essentially borrows that language, delivering the "time to rebuild" message without waiting for damage to trigger it. The skin responds the way it was designed to: by producing more collagen and supporting the structural matrix that keeps skin firm and smooth.
That mechanism is why Matrixyl 3000 has become a fixture in premium preventative skincare. Rather than treating deep-set lines after they arrive, it works steadily in the background to help maintain firmness and elasticity, slowing the gradual loss that makes skin look older over time. It is best suited to patients thinking ahead: those who want their thirties- and forties-era skincare to protect their fifties- and sixties-era skin.
As a topical ingredient, Matrixyl 3000 layers easily into a daily routine and plays well alongside other actives, peptides like Argireline, antioxidants, and professional treatments alike. Consistency matters more than intensity; results build over months with daily use.
In a protocol, Matrixyl 3000 is rarely the headline. It is the steady, proven supporting act, the ingredient quietly maintaining the foundation while your other treatments do the visible work.
Defensins are small peptides that are part of the body's natural defense and repair system, and their role in skincare represents a genuinely different approach. Most anti-aging ingredients, including the best peptides, focus on collagen: protecting it, signaling for more of it, rebuilding it. Defensins work further upstream. They have been associated with activating the skin's dormant stem cells, specifically a reserve population called LGR6+ cells, prompting the skin to generate fresh, new cells rather than just repairing the old ones.
That distinction is what makes defensins so compelling. Rather than asking aging skin cells to perform better, defensins encourage renewal from the source, supporting skin that behaves more like younger skin because, at the cellular level, more of it actually is. Patients drawn to defensins tend to be the ones reading ingredient labels and asking what is genuinely new in skin science, not just what is newly packaged.
Defensins are delivered topically, typically through advanced serums used consistently as part of a daily routine, and they pair well with collagen-focused peptides like Matrixyl 3000 and GHK-Cu, renewal from one direction, structural support from the other.
At SKINNEY Medspa, defensins appear in our most advanced skincare protocols, often alongside in-office treatments for patients building a complete skin strategy. If you want skincare that works at the deepest level available, this is the frontier.
PT-141, also known as Bremelanotide, takes a fundamentally different approach to sexual health than anything that came before it. Traditional options like Viagra and Cialis work on the vascular system, increasing blood flow, which addresses the mechanics but not the wanting. PT-141 works upstream, in the brain itself. It activates melanocortin receptors in the central nervous system, the pathways involved in sexual desire and arousal, which is why it has been studied for low libido rather than just physical function.
That brain-first mechanism explains the way patients describe it: desire that feels like it originates naturally, rather than a physical response produced on demand. It is also why PT-141 is one of the few options studied for both men and women, because desire pathways are not gender-specific, the way vascular treatments are. For women navigating low libido, where traditional options offer little, and for men whose concerns are more about desire than function, it fills a gap that nothing else quite covers.
PT-141 is typically administered as a subcutaneous injection taken on demand, roughly 45 minutes to an hour before intimacy rather than daily, with dosing guidance tailored to you under medical supervision.
This is also one of the most discreet conversations we have, and one of the most common. If desire has quietly faded from the picture, you are far from alone, and there is a genuinely different option to explore.
Kisspeptin-10 is a naturally occurring peptide with an outsized job: it sits at the very top of the reproductive hormone cascade. Produced in the hypothalamus, kisspeptin signals the release of GnRH, which in turn directs the pituitary to release LH and FSH, the hormones that drive testosterone production in men and ovulation and estrogen balance in women. In other words, kisspeptin is not one hormone among many; it is the switch that helps turn the whole system on.
That upstream position is why Kisspeptin-10 is growing so rapidly within fertility and hormone optimization medicine. Rather than replacing hormones directly, it has been studied for its ability to support the body's own production of hormones, an approach that appeals to patients who want to work with their endocrine system rather than overriding it. It is being explored in contexts ranging from supporting healthy testosterone levels to reproductive wellness and fertility conversations, often alongside comprehensive hormone evaluation.
Kisspeptin-10 is administered by injection under medical supervision, with protocols tailored to your lab work, goals, and health history. Because this is one of the newer frontiers in peptide medicine, your specialist will be clear about what current research supports and where it is still developing.
For patients thinking seriously about hormone health, whether optimizing now or planning for the future, this is one of the most scientifically interesting tools on the menu.
Selank is a synthetic peptide based on tuftsin, a naturally occurring immune molecule, and it has been studied for something most calming options get wrong: reducing anxious tension without sedation. Traditional anti-anxiety approaches often trade stress for fog; you feel calmer, but also slower. Selank has been explored for its ability to modulate the brain's stress response by influencing GABA signaling and stress hormone balance, while preserving clarity. Patients describe it as the volume turning down without the lights dimming.
That profile fits a very specific modern problem: the always-on nervous system. Constant notifications, packed calendars, decision fatigue, the background hum of stress that never quite resolves. Selank tends to attract patients who do not consider themselves anxious so much as perpetually overstimulated, and who want steadier nerves without anything that blunts their edge.
Selank is typically administered as a nasal spray, a delivery route that suits a peptide working in the brain, with dosing protocols tailored under medical supervision. Many patients use it daily during demanding stretches or situationally ahead of high-pressure days.
It pairs naturally with Semax, the focus peptide, to Selank's calm, and the two together have become a signature combination for patients building a cognitive protocol. If your mind runs hot all day and never quite settles, this is the place to start.
Semax is a synthetic peptide developed from a fragment of ACTH, a naturally occurring hormone, and it has been studied for decades for its effects on cognitive function. Its most widely discussed mechanism involves BDNF (brain-derived neurotrophic factor), a protein often described as fertilizer for neurons because of its role in supporting the growth, connectivity, and resilience of brain cells. By supporting BDNF activity, Semax has been explored for sharper focus, better memory formation, and improved mental endurance under demanding conditions.
The patients drawn to Semax are usually not struggling; they are performing and want to keep performing. Long analytical sessions, creative work that demands sustained attention, decision-heavy days that punish mental fatigue: this is the territory where Semax has built its reputation. Unlike stimulants, it has been studied for its ability to support cognition without the jittery edge or the afternoon crash, which is exactly why high performers keep finding their way to it.
Semax is typically administered as a nasal spray, with protocols tailored to your demands and goals under medical supervision daily for some patients, strategically timed for others.
It is most often paired with Selank, focus from one, calm from the other, a combination that has become the backbone of modern cognitive peptide protocols. For minds that are the primary professional asset, this is maintenance for the machinery.
DSIP, Delta Sleep-Inducing Peptide, is named for exactly what it has been studied to support: delta-wave sleep, the deepest and most physically restorative stage of the night. Delta sleep is when the real maintenance happens: growth hormone release, tissue repair, memory consolidation, and the full overnight reset. It is precisely the stage that shrinks with age, stress, and screen-lit evenings. You can spend eight hours in bed and still miss the sleep that matters most.
That distinction is what separates DSIP from typical sleep aids. Most options focus on inducing unconsciousness; DSIP has been explored to improve the architecture of sleep itself, supporting more time in the deep stages rather than simply more time asleep. Patients who wake up after a full night still feeling unrested, or who track their sleep and see plenty of light sleep but little deep sleep, are the ones who most often land here.
DSIP is typically administered as a subcutaneous injection in the evening, with protocols tailored under medical supervision and adjusted based on how your sleep responds.
Because deep sleep underwrites nearly everything else, recovery, energy, focus, and even body composition, DSIP often becomes the quiet multiplier in a broader protocol. Fix the nights, and the days tend to follow.
Glutathione is a tripeptide, three amino acids, produced by your own body, and it earned the title of master antioxidant honestly: it is your cells' primary defense against oxidative stress, the molecular wear-and-tear generated by pollution, alcohol, stress, poor sleep, and ordinary metabolism. Beyond neutralizing free radicals, glutathione is central to liver detoxification and even helps recycle other antioxidants like vitamins C and E, putting it at the hub of the body's entire defense network. Like so much else, levels decline with age and deplete faster under exactly the conditions city life supplies.
The skin story is what made glutathione famous in aesthetics. It has been studied for its role in supporting brighter, more even-toned skin, which is the source of that lit-from-within reputation, but patients tend to stay for the broader effects: immune support, detoxification, and the general sense of running cleaner.
Glutathione is most often administered by injection; oral glutathione absorbs poorly, which is why supplements rarely deliver on a regular cadence tailored to your goals. It also anchors two of our signature stacks, the Longevity Stack and the Glow Stack, where it pairs with NAD+, GHK-Cu, and B12.
As the finishing touch on nearly any protocol, wellness, or aesthetic, glutathione is the easiest addition with the most visible thank-you.
The GLP-1 peptide that changed modern weight loss. Semaglutide may support appetite regulation, blood sugar balance, and insulin sensitivity, making it a favorite among busy New Yorkers seeking to regain control over appetite and energy.
A signature peptide combination for busy New Yorkers looking for a comprehensive everyday boost. The SKINNEY Stack is designed to support appetite regulation, sustained energy, and cellular wellness.
Includes:
GLP-1, B12 Methylcobalamin, NAD+
A science-forward peptide stack for patients focused on aging well, feeling sharper, and staying resilient through every decade. The Longevity Stack may aid cellular repair, growth hormone production, and detoxification.
Includes:
NAD+, Sermorelin, Glutathione
A favorite peptide stack for patients who want their inner wellness to show on the outside. The Glow Stack is formulated to promote radiant skin, collagen production, and detoxification.
Includes:
Glutathione, GHK-Cu, B12 Methylcobalamin
Most patients begin to notice initial improvements within the first 2 to 4 weeks of consistent therapy, including increased energy, better sleep, or improved recovery. More significant changes in body composition, skin quality, or overall vitality typically develop over 2 to 6 months.
*Individual results may vary.
Call (212) 754-6639 to schedule your peptide therapy consultation, or fill out the form below to get started.
“Peptide therapy is a medical treatment, and I approach it carefully. Every patient has a health history review before anything is prescribed, and we're honest about where the research is strong and where it's still developing. Your safety and follow-up always come first.”
“When you ask me about peptide therapy, I start with your goals, whether that's recovery, body composition or skin quality. Then we review your health history together and decide whether a peptide makes sense for you, and if so, which one.”
“I'll explain exactly what to expect, including dosing, how to use your treatment safely and what side effects to watch for. Regular check-ins are part of the plan, so you'll never feel like you're figuring this out on your own.”
SKINNEY Medspa is the provider of customized peptide therapy preferred by New York City residents. We offer peptide therapy at two convenient Manhattan locations: 125 5th Avenue, Floor 2, and 30 East 60th Street. Call (212) 754-6639 to schedule your consultation at the location nearest you.
When administered under medical supervision using pharmaceutical-grade peptides, peptide therapy is safe and well-tolerated. Common side effects are mild and may include localized redness or discomfort at the injection site. Your peptide therapy specialist at SKINNEY Medspa will discuss all potential side effects and contraindications during your consultation.
Most clients see initial improvements within 2 to 4 weeks of starting peptide therapy, including increased energy, better sleep, or improved recovery. More significant changes in body composition, skin quality, or vitality typically develop over 2 to 6 months of consistent therapy. Individual results may vary.
Treatment frequency depends on your protocol and goals. Many peptides are administered once or twice per week, while others are taken daily or in cycles. Your peptide therapy specialist at SKINNEY Medspa will design a schedule that fits your lifestyle and adjust it over time as your body responds.
Popular anti-aging peptide options at SKINNEY Medspa include Sermorelin and CJC-1295 with Ipamorelin for growth hormone support, GHK-Cu for collagen and skin regeneration, and Epitalon for cellular longevity. The right combination depends on your specific concerns and will be determined during your consultation.
GLP-1 peptides like Semaglutide and Tirzepatide support appetite regulation and blood sugar management. AOD-9604 targets stubborn body fat while preserving lean muscle, and Tesamorelin specifically targets visceral abdominal fat. Your custom peptide stack at SKINNEY Medspa will be designed around your specific weight loss goals.
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