Independent peptide research

The science behind peptides, clearly explained

PeptideMark is the most comprehensive evidence-based peptide reference on the internet. Every claim cited. Every compound evidence-rated. No hype, no vendor influence — just research.

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20+ compounds profiled100% claims cited4-tier evidence rating$0 vendor influence

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Healing & Recovery

BPC-157Body Protection Compound-157, Bepecin

A gastric pentadecapeptide studied extensively in animal models for tissue healing, gut protection, and cytoprotective properties. Despite over 100 preclinical studies, human clinical data remains extremely limited.

Preliminary EvidenceBanned from Compounding (Category 2)WADA banned9 studies cited

Weight Loss

SemaglutideOzempic, Wegovy

An FDA-approved GLP-1 receptor agonist used for type 2 diabetes and chronic weight management.

Strong EvidenceFDA Approved6 studies cited

Weight Loss

TirzepatideMounjaro, Zepbound

An FDA-approved dual GIP/GLP-1 receptor agonist that has shown the highest weight loss results of any approved medication.

Strong EvidenceFDA Approved5 studies cited

Healing & Recovery

TB-500Thymosin Beta-4, TB4

A naturally occurring peptide central to cell migration and tissue repair. Phase 2 human wound healing trials showed accelerated healing; also studied for cardiac and corneal repair.

Moderate EvidenceBanned from Compounding (Category 2)WADA banned5 studies cited

Weight Loss

RetatrutideLY3437943, Triple Agonist

A triple-acting GIP/GLP-1/glucagon receptor agonist in Phase 3 trials showing potentially the highest weight loss of any drug in development.

Moderate EvidenceIn Clinical Trials1 studies cited

Immune Support

Thymosin Alpha-1Tα1, Thymalfasin

A naturally occurring thymic peptide approved internationally for immune modulation, with extensive clinical data in hepatitis and cancer immunotherapy.

Strong EvidenceResearch Only1 studies cited

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