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Peptide Buyer's Guides

In-depth buyer's guides for the most popular research peptides. Each guide surfaces lab data, third-party COAs, and shipping details so you can compare suppliers with more context. No paid placements.

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10+ peptides · trusted suppliers

BPC-157

Body Protection Compound 157 — widely studied for tissue repair, gut health, and tendon healing.

TB-500

Thymosin Beta-4 fragment — researched for tissue repair, often paired with BPC-157.

GHK-Cu

Copper-binding tripeptide — researched for skin remodeling, wound healing, and antioxidant effects.

Retatrutide

Investigational triple agonist (GLP-1, GIP, glucagon) — studied for metabolic effects.

Tirzepatide

Dual GIP and GLP-1 receptor agonist — widely studied for metabolic effects.

Semaglutide

GLP-1 receptor agonist — research-grade peptide for laboratory study.

Melanotan II

Synthetic alpha-MSH analog — researched for melanogenesis effects.

CJC-1295 / Ipamorelin

GHRH analog and GH secretagogue blend — popular synergistic GH-axis research pair.

MOTS-c

Mitochondrial-derived peptide — researched for metabolic regulation, insulin sensitivity, and exercise adaptations.

Sermorelin

29-aa GHRH analog — studied for endogenous growth hormone release via the pituitary.

Selank

Synthetic heptapeptide — researched for anxiolytic-like effects, immune modulation, and cognitive endpoints.

PT-141

Bremelanotide — melanocortin MC4R agonist studied for sexual response and CNS-mediated endpoints.

NAD+

Coenzyme central to redox reactions — researched for mitochondrial function and aging pathways.

IGF-1 LR3

Long R3 IGF-1 analog — extended half-life version of IGF-1 with reduced IGFBP binding.

AOD-9604

Modified hGH 176-191 fragment — studied for lipolysis and adipose tissue regulation.

Tesamorelin

44-aa modified GHRH analog — researched for endogenous GH secretion and visceral adipose tissue.