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

6 Best Peptides for the Gut-Brain Axis

Six peptides appear consistently in research and real-world use for gut-brain axis support: BPC-157, KPV, Larazotide, Thymosin Alpha-1, Selank, and VIP. Their evidence ranges from strong preclinical animal data to emerging human trials to community-reported experience, and this guide states that honestly for each one rather than using evidence strength as a reason to leave a compound off the list. The entries are numbered by how prominently each appears in research and documented use for this goal, not ranked as a recommendation of one over another. The right compound depends on where your gut-brain axis is breaking down, and turning that picture into a personalized plan is what the MyPeptidePal app is built for.

Gut Health 11 min read

6 Best Peptides for Gut Microbiome

Six compounds show up consistently in research and real-world protocols for gut microbiome support: BPC-157, KPV, LL-37, Tributyrin, Larazotide Acetate, and Polysaccharopeptide from turkey tail mushroom. They range from synthetic peptides with extensive animal data to a dietary compound backed by a published human randomized controlled trial. This guide covers each one in turn, stating the evidence honestly, and orders them by how prominently each appears in research and community use rather than as a personal recommendation. The personalized decision is what MyPeptidePal handles.

Gut Health 11 min read

6 Best Peptides for Constipation

Six peptides appear consistently in the constipation literature, in clinical practice, and in functional medicine gut-health discussions, ranging from two FDA-approved prescription drugs with robust randomized controlled trial data to research-stage compounds whose use rests on preclinical findings and community protocols. This guide covers all six, numbered by how prominently each appears in research and documented real-world use, not ranked as recommendations from best to worst. The right compound for any individual depends on their specific situation, and that personalized decision belongs with a clinician and, for building a complete plan, with the MyPeptidePal app.

Gut Health 10 min read

5 Best Peptides for Stomach Ulcers

Five peptides come up consistently when people research or discuss compounds for stomach ulcer support: BPC-157, KPV, Stamakort, Larazotide Acetate, and GHK-Cu. The field spans a wide evidence range, from BPC-157's substantial animal research and functional medicine use to Stamakort's bioregulator tradition in Eastern European medicine to compounds whose role here is largely user-reported and adjunctive. This guide walks through each one in turn, covering what it is, how people use it for stomach ulcers, and what the evidence honestly shows. The compounds are ordered by how prominently each appears in research and real-world use for this goal, not as a ranking of one over another, and turning that overview into a personalized plan is what the MyPeptidePal app is built to do.

Gut Health 10 min read

6 Best Peptides for Gastritis

People dealing with gastritis are increasingly exploring a small set of peptides that target mucosal repair, inflammation, and gut barrier integrity, moving beyond acid-suppression medications alone. This guide covers six compounds that appear consistently in research and real-world use for this goal: BPC-157, KPV, Stamakort, Larazotide, TB-500, and a natural peptide extract from traditional Chinese medicine. The evidence ranges from phase II human trial data for related GI conditions to community-only reports with no published gastritis-specific clinical trials, and each entry states that picture honestly. The compounds are listed by how prominently each appears in research and documented real-world use for gastritis, not ranked as recommendations, because the right choice depends on your specific situation and underlying cause.

Gut Health 11 min read

6 Best Peptides for Ulcerative Colitis

Six peptides are actively used and discussed for ulcerative colitis as of 2026, ranging from BPC-157 and KPV, the most widely referenced off-label combination in functional medicine, to compounds like Larazotide, Thymosin Alpha-1, VIP, and GHK-Cu that each target a distinct aspect of the disease. None are FDA-approved for UC, and the human trial data varies considerably from one compound to the next: a handful have completed early-phase clinical work, while others rest on animal research or community-reported experience. The entries are ordered by how prominently each compound appears in the published research and in real-world use for UC, not as a recommendation of one over another, and the personalized decision belongs in the hands of a knowledgeable practitioner and a tool built for individual planning.

Inflammatory Bowel Disease 10 min read

6 Best Peptides for Crohn's Disease

People pursuing peptide support for Crohn's disease most often reach for a small group of compounds, with BPC-157 and KPV leading the conversation and Thymosin Alpha-1, Larazotide, VIP, and MOTS-c filling out the field. The honest picture is that no peptide has completed a large-scale randomized controlled trial specifically for Crohn's, which makes the evidence thin by clinical standards but does not make these compounds irrelevant to someone mapping their options. This guide covers six compounds in turn: what each one is, how people use it for this goal, and what the evidence actually shows. They are ordered by how prominently each appears in research and real-world use, not as a ranking of one being better than another, and the personalized decision belongs with a physician and with the MyPeptidePal app where your full picture can be taken into account.

Crohns Disease 11 min read

6 Best Peptides for GERD & Acid Reflux

Six peptides have entered the real conversation around GERD and acid reflux, ranging from fermented soy peptides, the only option here backed by a human randomized controlled trial for this specific goal, to BPC-157, the most widely used compound in functional medicine and community circles. This guide covers the compounds people actually use or are actively discussing for GERD, with each one's evidence described honestly in plain terms. The entries are numbered by how prominently each compound appears in research and real-world use, not ranked as a recommendation of one over another, and the MyPeptidePal app is where the personalized decision gets made.

Gut Health 11 min read

5 Best Peptides for SIBO

People researching peptides for SIBO will find a focused field of five compounds, ranging from a gut-repair peptide used throughout antibiotic protocols to a barrier specialist with genuine human clinical data behind it. None of these eradicate the bacterial overgrowth the way rifaximin does; their role is to repair the intestinal lining, reduce inflammation, and restore the barrier function that SIBO systematically damages. This guide covers the five compounds most commonly used or discussed for SIBO support, ordered by how prominently each appears in research and real-world use rather than as a recommendation of one over another.

Gut Health 10 min read

7 Best Peptides for IGF-1 Optimization

Seven peptides and peptide-adjacent compounds stand out as the ones people actually use or are actively discussing for IGF-1 optimization in 2026, ranging from the widely prescribed CJC-1295 and Ipamorelin combination to the research-chemical territory of IGF-1 LR3 and IGF-1 DES. The field splits into two camps: indirect secretagogues that stimulate the body's own growth hormone axis to raise IGF-1 naturally, and direct analogs that bypass that axis and activate the IGF-1 receptor outright. The compounds here are ordered by how prominently each appears in the research and in real-world use, not as a recommendation of one over another. Where the evidence is clinical, it is described as clinical. Where it rests entirely on community-reported experience with no human trial data, that is stated plainly.

Growth Hormone Optimization 12 min read

6 Best Peptides for Pituitary Health

Six peptides show up consistently when people research pituitary health: Sermorelin, CJC-1295, Ipamorelin, Tesamorelin, Gonadorelin, and Kisspeptin-10. They split into two groups by target, four that work through the growth hormone axis and two that support the reproductive axis, and they vary widely in how much human evidence stands behind each one. Tesamorelin carries FDA approval for a specific metabolic indication and has the strongest clinical evidence base of the group. Sermorelin has a history of FDA-recognized diagnostic use and remains available via prescription. CJC-1295 and Ipamorelin were removed from the FDA's permitted compounding list in 2023 and now exist primarily in gray-market channels in the United States. Gonadorelin has decades of clinical use in reproductive medicine. Kisspeptin-10 is still largely a research compound. The entries below are ordered by how prominently each compound appears in research and documented real-world use, not as a ranking of one being better than another for you.

Endocrine Health 12 min read

6 Best Peptides for Graves' Disease

Six peptides show up consistently in research and community discussion around Graves' disease, ranging from a compound that completed a Phase 1 human trial designed specifically for the disease to off-label immune-modulating and gut-repair peptides that people explore as adjuncts to conventional treatment. No peptide is approved for Graves' disease, and the human evidence across the field is thin, which makes an honest map of the landscape especially useful. These compounds are ordered by how prominently each appears in research and documented real-world use for Graves' disease, not as a recommendation of one over another, and the differences in evidence between entries are substantial and stated plainly throughout.

Thyroid 10 min read

7 Best Peptides for Hashimoto's Thyroiditis

Seven peptides show up consistently in the Hashimoto's thyroiditis conversation in 2026, from FDA-approved GLP-1 receptor agonists used off-label for their anti-inflammatory effects to thymic immune modulators like Thymosin Alpha-1 to gut-repair compounds like BPC-157 and KPV. None are approved specifically for Hashimoto's, and the human clinical evidence ranges from strong community-reported patterns to very thin published data, all of which is stated plainly for each compound. The entries are ordered by how prominently each appears in research and real-world use for this condition, not as a ranking of one over another, because the right fit depends on your specific symptom picture and what you work through with a practitioner.

Thyroid 11 min read

7 Best Peptides for Hyperthyroidism

Hyperthyroidism sits in an unusual corner of the peptide landscape: most online discussion about thyroid peptides targets the opposite condition, so anyone researching compounds specifically for an overactive thyroid has to sort through a lot of noise. This guide covers the peptides people are actually using or actively researching for hyperthyroidism and Graves' disease, from ATX-GD-59, the only compound with published human trial data for this specific condition, to Thyreogen, a bioregulator marketed as a bidirectional thyroid normalizer, to immune-modulating and tissue-repair peptides that appear in community discussions around autoimmune thyroid conditions broadly. The seven compounds are ordered by how prominently each appears in hyperthyroidism-specific research and documented use, not ranked as a recommendation of one over another. The evidence picture across this field is uneven and in several cases very thin, and this guide says so plainly for each compound rather than glossing over it.

Thyroid 11 min read

6 Best Peptides for Hypothyroidism

People researching peptides for hypothyroidism, most often driven by the autoimmune condition Hashimoto's thyroiditis at the root of it, are looking at compounds that work upstream of hormone replacement rather than replacing thyroid hormones directly. The field spans immune-modulating peptides like Thymosin Alpha-1, gut-healing options like BPC-157, metabolic agents with indirect thyroid effects, and specialty bioregulators like Thyreogen. No peptide has been shown in human clinical trials to directly treat hypothyroidism, and that honest picture is front and center in every entry. These six compounds are ordered by how prominently each appears in research and real-world use, not as a ranking of one being better than another for any individual.

Thyroid 10 min read