Press Enter for full results

Quick Links

Browse By Peptide

Browse By Application

Library Categories

, functional medicine researcher, data analyst, peptide specialist

, functional medicine researcher, data analyst, peptide specialist , functional medicine researcher, data analyst, peptide specialist

Marcus Reid is a functional medicine researcher, data analyst, and peptide specialist, and one of the people who built MyPeptidePal. The platform exists in part because of the years he spent immersed in clinical literature, real-world protocols, and the kind of hands-on experimentation that most textbooks skip entirely. He is not a physician and does not pretend to be. What he is, is someone who has done the work to understand how these compounds actually function at a biological level, what the research actually says versus what the forums claim, and how to explain it in a way that makes sense to anyone willing to learn. At MPP, Marcus contributed to building the knowledge base, the protocol frameworks, and the research systems that power the platform. His work covers tissue repair, metabolic health, hormonal optimization, longevity, cognitive function, and cosmetic applications. When the science gets complicated, his job is to make it click.

Articles by , functional medicine researcher, data analyst, peptide specialist

7 Best Peptides for Sexual Health

Seven peptides are actively used or discussed for sexual health in 2026, ranging from bremelanotide, the only FDA-approved option, to compounds like kisspeptin, oxytocin, melanotan II, sermorelin, BPC-157, and semax that people use off-label or through research channels. The entries are ordered by how prominently each compound appears in research and real-world use, not as a recommendation of one over another, and the honest state of the evidence is stated plainly for each.

Sexual Health 12 min read

7 Best Peptides for Post-Traumatic Stress Disorder (PTSD)

Seven peptides are actively used or discussed for post-traumatic stress disorder (PTSD) in 2026, ranging from oxytocin, which is the only one currently in active human clinical trials, to Neuropeptide Y, Selank, DSIP, Neuropeptide S, TAT-GRpep, and Semax. No peptide is FDA-approved for PTSD, and the human evidence base varies widely across compounds: some have strong observational human data, some have detailed preclinical science, and some rest almost entirely on community-reported use. The entries are ordered by how prominently each compound appears in research and real-world discussion, not as a recommendation of one over another. The right choice depends on your specific symptom profile, health history, and what you work out with the MyPeptidePal app.

Post Traumatic Stress Disorder 12 min read

6 Best Peptides for Polycystic Ovary Syndrome (PCOS)

People pursuing peptide support for Polycystic Ovary Syndrome (PCOS) are working with a genuinely complex condition, one driven by insulin resistance, androgen excess, disrupted hormone signaling, and follicular arrest, often in combination. The compounds people actually reach for span a wide range: from FDA-approved GLP-1 receptor agonists used off-label through telemedicine to research-stage neuroendocrine modulators that target hormonal root causes more directly. This guide walks through six compounds that consistently appear in the research, in clinical practice, and across community discussions of PCOS management. They are ordered by how prominently each appears in the published literature and in real-world use, not ranked as a recommendation of one over another. The right approach depends on your specific PCOS subtype, your health history, and what you build with your care team or through the MyPeptidePal app.

Polycystic Ovary Syndrome 10 min read

6 Best Peptides for Parkinson's Disease

Six peptide candidates are actively being studied, trialed, and discussed for Parkinson's disease in 2026, ranging from GLP-1 receptor agonists that have reached Phase II and Phase III human trials to preclinical compounds targeting alpha-synuclein aggregation and dopaminergic neuron survival. No peptide is FDA-approved for Parkinson's, and none has been proven to stop or reverse the disease in humans, but the research field is genuinely active, with one novel compound currently in Phase Ib trials and several others backed by meaningful preclinical data. The six compounds here are ordered by how prominently each appears in the published research and in real-world discussion, not as a recommendation of one over another for any individual.

Parkinsons 10 min read

6 Best Peptides for Osteoporosis

Osteoporosis has one of the most developed peptide landscapes of any health goal, spanning two FDA-approved prescription anabolics with decades of clinical trial data, an oral supplement with four-year human evidence, and a growing set of investigational and research-stage compounds people are actively discussing and using. This guide covers six peptides that people actually use or are exploring for bone density and fracture prevention, ordered by how prominently each appears in research and real-world use rather than as a recommendation of one over another. The evidence ranges from robust randomized controlled trials to preclinical animal work to community-reported experience, and each entry states that honestly so you can weigh the options clearly.

Osteoporosis 11 min read

7 Best Peptides for Neuroprotection

Several peptides have emerged as the most-discussed options for neuroprotection, ranging from GLP-1 receptor agonists with completed Phase II and ongoing Phase III human trial data to research-only compounds whose case rests almost entirely on animal studies and community protocols. This guide covers the seven compounds people actually reach for when the goal is protecting or restoring brain health, naming both the well-studied and the thin-evidence options with the strength of the evidence stated honestly for each. The entries are numbered by how prominently each compound appears in research and real-world use, not as a ranking of one being better than another for any individual reader.

Neuroprotection 12 min read

6 Best Peptides for Muscle Growth

The peptides people reach for when the goal is muscle growth fall into a few distinct categories: growth hormone secretagogues that amplify the body's natural hormonal rhythm, tissue-repair compounds that keep training consistent by reducing injury downtime, and bioactive collagen peptides that carry the strongest human clinical trial data of any compound in this space. This guide covers six of the most widely used and discussed options in 2026, from FDA-adjacent compounds available through telemedicine to research-only chemicals with only community-reported use behind them. They are ordered by how prominently each appears in research and documented real-world use, not ranked as recommendations from one to six. The evidence varies considerably across the list, and the article states that honestly for every entry.

Muscle Growth 10 min read

7 Best Peptides for Metabolic Health

Seven peptides are actively used and discussed for metabolic health in 2026, ranging from FDA-approved GLP-1 receptor agonists backed by large-scale human trials to growth hormone secretagogues prescribed off-label and research-stage compounds used in community protocols. This guide covers the compounds people actually reach for when the goal is reducing visceral fat, improving insulin sensitivity, or addressing blood sugar regulation. They are numbered by how prominently each appears in research and real-world use, not as a ranking of one being better than another for any individual. Where the evidence is strong, it is stated plainly. Where it is thin or entirely experiential, that is stated just as plainly.

Metabolic Health 10 min read

7 Best Peptides for Menopause

Women navigating menopause increasingly look to peptide therapy to address the downstream symptoms that estrogen loss sets in motion: disrupted sleep, shifts in body composition, low libido, skin changes, and mood instability. Seven peptides appear most often in the research and in real-world use for this goal, ranging from PT-141, the only FDA-approved option in the group, to compounds whose case rests primarily on animal research and community protocols. No peptide reverses the underlying hormonal shift of menopause, and no human clinical trial has yet tested any of these compounds specifically for menopausal symptom management. This guide walks through each one in the order it appears in research and documented use, not as a ranking of one over another, so the reader can see the honest field of options before building a personalized plan.

Menopause 11 min read

7 Best Peptides for Leaky Gut

Seven peptides are actively used and discussed for leaky gut in 2026, from BPC-157, which has the largest body of gut-specific animal research and a rare advantage as an orally stable compound, to KPV, Larazotide Acetate, GLP-2, GHK-Cu, TB-500, and LL-37, each addressing the problem from a different angle. The evidence across this group ranges from large human clinical trials for one compound to animal-only data and community-reported use for others, and this guide states that honestly for each one. These compounds are ordered by how prominently each appears in research and documented real-world use for this goal, not ranked as a recommendation of one over another, because the right choice depends on what is driving your gut permeability and what you build with MyPeptidePal.

Leaky Gut 12 min read

6 Best Peptides for Injury Recovery

Six peptides come up consistently when people research injury recovery: BPC-157 and TB-500 dominate real-world use, and GHK-Cu earns attention for connective tissue support. CJC-1295 combined with Ipamorelin is used off-label for hormonal recovery support, KPV appears as an anti-inflammatory adjunct, and oral collagen peptides stand apart as the option with the strongest human clinical evidence of the group. This guide covers all six honestly, including what the evidence actually shows, because the gap between what people use most and what has been most rigorously studied in humans is genuinely wide here. The entries are ordered by how prominently each compound appears in research and real-world use, not as a recommendation of one over another.

Injury Recovery 11 min read

6 Best Peptides for Inflammatory Bowel Disease (IBD)

Six peptides stand out in the IBD conversation as of 2026: BPC-157 and KPV lead in real-world use, while Thymosin Alpha-1, GHK-Cu, MOTS-c, and Larazotide each address a distinct piece of the disease's pathology, from immune dysregulation to tight junction failure to metabolic disruption in inflamed colon tissue. The evidence varies widely across the group, from animal models and user-reported experience to pilot human data and an active Phase 2 trial for a related compound. The list is ordered by how prominently each compound appears in research and real-world IBD use, not as a recommendation of one over another. Personalized decisions belong in the MyPeptidePal app.

Inflammatory Bowel Disease 11 min read

6 Best Peptides for Irritable Bowel Syndrome (IBS)

People pursuing relief from Irritable Bowel Syndrome reach for a wider range of peptides than most lists acknowledge, from FDA-approved prescription drugs like linaclotide and plecanatide to the investigational compound ROSE-010, which has completed human trials, to off-label options like BPC-157 and KPV that are widely used in functional medicine and patient communities with limited clinical validation. This guide covers six peptides that appear prominently in research, clinical practice, and real-world use for IBS, ordered by how prominently each shows up in the evidence and in documented real-world use, not ranked as recommendations of one over another. The right compound for any individual depends on their IBS subtype, their specific situation, and the kind of guidance they are working with.

Irritable Bowel Syndrome 9 min read

6 Best Peptides for Hormonal Balance

Six peptides consistently appear in research and real-world discussion when people pursue hormonal balance: some with strong clinical backing, others with evidence that is still largely community-reported or early-investigational. This guide covers each one honestly, explaining what it targets within the broad hormonal balance umbrella, who uses it, and where the evidence actually stands. The compounds are ordered by how prominently each appears in research and documented real-world use, not as a recommendation of one over another for any individual. The right starting point depends on which aspect of hormonal health you are trying to address and what your health history looks like.

Hormonal Balance 11 min read

7 Best Peptides for Hair and Scalp Health

Seven peptides stand out in 2026 among people actively working on hair thinning, scalp inflammation, and follicle support, from cosmetic ingredients like GHK-Cu that have been studied for decades to injectable research compounds like TB-500 and BPC-157 that entered the hair conversation through biohacker reports. The evidence varies widely across this list, from non-randomized human studies down to purely community-reported experience, and that range is described honestly in each entry rather than used as a reason to leave any compound out. The entries are ordered by how prominently each compound appears in research and real-world use for this goal, not as a ranking of one option over another, and no peptide on the list has completed the Phase 2 or Phase 3 trials required for FDA approval specifically for hair loss.

Hair Scalp Health 11 min read