Curious about peptides? Start here.

The most extensively researched performance supplement in existence with over 500 peer-reviewed studies. Increases muscle phosphocreatine stores to extend high intensity exercise capacity, accelerate strength gains, and support lean muscle development. Emerging evidence supports cognitive and neuroprotective benefits. Exceptionally safe profile validated across decades of research.

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A naturally occurring plant-derived ecdysteroid extracted from Ajuga turkestanica, popularized as a natural alternative to anabolic steroids. Does not appear to bind androgen receptors and is not expected to cause hormonal suppression. Human evidence base is currently very limited and does not match the boldness of mainstream fitness claims.

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An orally active non-peptide compound that mimics ghrelin to stimulate sustained growth hormone and IGF-1 release. The only compound in this catalog that achieves growth hormone secretagogue effects without injection. Has reached Phase II human clinical trials for muscle wasting and hip fracture recovery. Sold as a research compound, not FDA approved.

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The most advanced peptide in active clinical development on PeptideClear. A triple hormone receptor agonist targeting GLP-1, GIP, and glucagon receptors simultaneously — producing weight loss results in Phase II trials (~24% body weight) that exceed both semaglutide and tirzepatide. Currently in Phase III trials with Eli Lilly. PeptideClear is actively tracking its path to approval.

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A naturally occurring hormone whose synthetic analogs — including semaglutide (Ozempic, Wegovy) and liraglutide — have become among the most prescribed medications in the world. FDA approved with an extensive clinical evidence base. Works by stimulating insulin release, suppressing appetite, and slowing gastric emptying. Requires a prescription through a licensed provider.

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A synthetic analog of the body's natural Growth Hormone Releasing Hormone (GHRH), comprising its first 29 amino acids. The only peptide in this catalog with prior FDA approval history, previously prescribed for pediatric growth hormone deficiency. Available through licensed compounding pharmacies by prescription. Stimulates the pituitary to produce growth hormone naturally.

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A selective synthetic peptide that stimulates growth hormone release from the pituitary gland without significantly affecting cortisol or prolactin. One of the most popular peptides in longevity and performance protocols due to its clean hormonal profile. Has reached human clinical trials. Often combined with CJC-1295 for amplified effect.

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A synthetic peptide derived from Thymosin Beta-4, a protein naturally present in human cells. Studied in animal models for muscle and tendon repair, wound healing, and cardiac tissue recovery. Widely used alongside BPC-157 as a recovery stack in the biohacking community. No human clinical trials completed to date. Note: often confused with TB-500 Fragment — CAS 77591-33-4 confirms full Thymosin Beta-4.

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A naturally occurring dipeptide found in high concentrations in muscle and brain tissue, first discovered in 1900. Works through four distinct mechanisms — pH buffering, antioxidant activity, anti-glycation, and heavy metal chelation. Strong human RCT evidence for athletic endurance, skin anti-aging, cognitive protection, and blood sugar regulation. OTC with over 120 years of research history.

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A synthetic peptide commercially known as Matrixyl, purpose-built for skincare. Works as a matrikine, mimicking a collagen breakdown signal that triggers fibroblasts to produce new collagen, elastin, and hyaluronic acid. One of the most widely used and well-studied peptides in the global skincare industry with strong human evidence for wrinkle reduction and skin firmness. Safe for use during pregnancy.

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A naturally occurring copper-bound tripeptide first isolated from human plasma in 1973, with levels declining significantly with age. Stimulates collagen and elastin synthesis, promotes wound healing, and demonstrates gene expression resetting properties in aging cells. The only peptide in this catalog that spans both mainstream OTC skincare and the gray zone research community.

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The second most abundant collagen in the body, found alongside Type I in skin, blood vessels, and internal organs. Almost always consumed as part of a Type I and III bovine collagen blend. Supports skin firmness, vascular integrity, and gut lining health. Less independently studied than Type I but shares a robust combined evidence base.

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The most abundant protein in the human body and the best-studied peptide supplement in this catalog. Derived from bovine or marine sources and hydrolyzed for absorption. Strong human RCT evidence for skin elasticity, joint comfort, nail strength, and bone density support. Widely available OTC as a powder, capsule, or liquid with an excellent safety profile.

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A synthetic tripeptide derived from the C-terminal fragment of alpha-melanocyte stimulating hormone (α-MSH). Unlike most peptides in this catalog which stimulate or build, KPV is primarily a regulator — it quiets overactive inflammatory responses without broadly suppressing immune function. Most studied for gut inflammation, wound healing, and antimicrobial activity. One of the four components of the KLOW recovery stack.

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A synthetic peptide studied in animal models for tendon repair, gut healing, and anti-inflammatory effects. Derived from a protein found in gastric juice. Shows remarkable healing properties across tendons, gut lining, and nervous system in animal studies. No human RCT data currently available. Widely used in the research community. Sold as a research compound only.

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A synthetic analog of Growth Hormone Releasing Hormone (GHRH) and the only GHRH analog with an FDA-approved indication, making it one of the most clinically validated peptides in this catalog. Approved under the brand name Egrifta for the reduction of excess visceral abdominal fat in HIV patients with lipodystrophy. Widely used off-label in longevity and metabolic health contexts for its targeted visceral fat reduction and emerging cognitive benefits. Requires a prescription through a licensed provider.

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