Peptide Encyclopedia

Clinically Validated

Matrixyl 3000

Palmitoyl Tripeptide-1 & Tetrapeptide-7

578.75 g/mol (mix) →

Research Only

Melanotan 2

Melanotan II (MT-II)

1024.18 g/mol →

Research peptide — not approved for human use

MOTS-c

Mitochondrial Open Reading Frame of the 12S rRNA type-c

2174.60 g/mol →

FDA Approved (Vyleesi)

PT-141

Bremelanotide (Vyleesi®)

1025.2 g/mol →

Phase 3 Clinical Trials

Retatrutide

LY3437943 (Eli Lilly)

~4300 g/mol →

Research peptide — approved in Russia; not FDA/EMA approved

Selank

Threonyl-Lysyl-Prolyl-Arginyl-Prolyl-Glycyl-Proline (tuftsin analog TP-7)

751.88 g/mol →

FDA/EMA Approved

Semaglutide

GLP-1 Receptor Agonist

4113.58 g/mol →

Research peptide — approved as a medicine only in Russia; not approved by the FDA or EMA

Semax

Semax (Met-Glu-His-Phe-Pro-Gly-Pro), a synthetic analog of ACTH(4-10)

813.92 g/mol →

Active Research

Sermorelin

Sermorelin Acetate (GHRH 1-29)

3357.9 g/mol →

Active research

TB-500

Thymosin Beta-4 Fragment

4963.50 g/mol →

Approved as a drug (thymalfasin/Zadaxin) in some countries; not FDA/EMA approved — investigational elsewhere

Thymosin Alpha-1

Thymosin Alpha-1 (Thymalfasin, Tα1)

3108.30 g/mol →

Research use only — not approved for human use

Thymosin Beta-4 (TB4)

Thymosin Beta-4 (Tβ4)

4963.44 g/mol →