vialaudit
The Roundup
peptide research · 6 compounds

The peptides, explained.

Mechanism, half-life, common research doses, and which vendors we've audited for each compound. Cited from peer-reviewed literature; not human-use guidance.

§ 01

healing & repair

2 guides
BPC-157Body Protection Compound 157

Synthetic peptide derived from a protein fragment in gastric juice. Mechanism not fully characterized; research suggests angiogenic and a…

2 vendors · tendon recovery · gut healing
TB-500Thymosin Beta-4 fragment

Synthetic fragment of the naturally occurring thymosin beta-4. Researched for cell migration and tissue repair.

1 vendor · recovery · tissue repair
§ 02

metabolic

3 guides
RetatrutideLY3437943

Triple agonist of GLP-1, GIP, and glucagon receptors. Eli Lilly's Phase 3 candidate (TRIUMPH program).

1 vendor · weight loss · metabolic dysfunction
SemaglutideOzempic

GLP-1 receptor agonist. FDA-approved as Ozempic (T2D), Wegovy (obesity), and Rybelsus (oral T2D).

1 vendor · weight loss · type 2 diabetes
TirzepatideMounjaro

Dual GLP-1 / GIP receptor agonist. FDA-approved as Mounjaro (T2D) and Zepbound (obesity).

2 vendors · weight loss · type 2 diabetes
§ 03

skin & hair

1 guide
GHK-CuCopper peptide

Naturally occurring copper-binding tripeptide. Well-documented in dermatology literature for collagen synthesis and wound healing.

1 vendor · skin regeneration · hair growth
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Vendor audits

vendor auditAmino AsylumPermanently shut down June 2025 following an FDA raid. Do not order.composite 0/100vendor auditLimitless Life NootropicsCleanest COAs we've tested, fast US shipping, premium pricing.composite 91/100vendor auditParticle PeptidesBest price-to-purity ratio in the market right now.composite 88/100
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