The peptide index

All 30 peptides.

Every profile includes the sequence, the mechanism, the evidence, the safety data and an honest regulatory status.

Eight categories

Eight colors. One current.

Illustrative vials. Category colors, not product packaging.

30 peptides

Semaglutide

Weekly injection or daily tablet · Ozempic, Wegovy, Rybelsus

FDA-approved · by prescription31 aa · 4,114 g/mol

Tirzepatide

Mounjaro for type 2 diabetes · Zepbound for weight management

FDA-approved · by prescription39 aa · 4,813 g/mol

Retatrutide

Investigational · not approved anywhere · in Phase 3 trials

Investigational39 aa · 4,731.3 g/mol

Cagrilintide

Investigational · CagriSema combination under FDA review

Investigational37 aa · 4,409 g/mol

AOD-9604

Not FDA-approved · obesity development stopped in 2007

Not available16 aa · 1,815.1 g/mol

MOTS-c

Not FDA-approved · evidence mainly from animal studies

Not available16 aa · 2,174.6 g/mol

PT-141 (Bremelanotide)

Vyleesi · approved for HSDD in premenopausal women only

FDA-approved · by prescription7 aa · 1,025.2 g/mol

Melanotan II

Never approved anywhere · case reports of serious harm

Not available7 aa · 1,024.2 g/mol

Kisspeptin-10

Not FDA-approved · on FDA's compounding safety-risk list

Not available10 aa · 1,302.4 g/mol

Oxytocin

Pitocin · approved for labor induction and bleeding after birth

FDA-approved · specialist care9 aa · 1,007.2 g/mol

Gonadorelin

No FDA-approved product marketed · former brands discontinued

Not currently offered10 aa · 1,182.3 g/mol

BPC-157

Not FDA-approved · almost no controlled human data

Not available15 aa · 1,419.5 g/mol

TB-500 / Thymosin Beta-4

Not FDA-approved · no human data on the TB-500 fragment

Not available7 aa · 889 g/mol

GHK-Cu

Compounded · topical only · not FDA-approved

Compounded · topical · not FDA-approved3 aa · 401.9 g/mol

KPV

Not FDA-approved · cell and animal studies only

Not available3 aa · 342.4 g/mol

Thymosin Alpha-1

Not FDA-approved · marketed abroad as Zadaxin

Not available28 aa · 3,108.3 g/mol

Semax

Not FDA-approved · registered in Russia as nasal drops

Not available7 aa · 813.9 g/mol

Selank

Not FDA-approved · small Russian studies only

Not available7 aa · 751.9 g/mol

Epitalon

Not FDA-approved · evidence mostly from cells and rodents

Not available4 aa · 390.4 g/mol

SS-31 (Elamipretide)

FORZINITY · accelerated approval for Barth syndrome

FDA-approved · specialist care4 aa · 639.8 g/mol

Glutathione

No approved glutathione injection · FDA safety alerts on IV use

Not currently offered3 aa · 307.3 g/mol

Melanotan I / Afamelanotide

Scenesse approved for EPP · 'Melanotan I' vials unapproved

FDA-approved · specialist care13 aa · 1,646.9 g/mol

Argireline (Acetyl Hexapeptide-8)

Cosmetic ingredient · not an approved drug

Cosmetic ingredient6 aa · 889 g/mol

CJC-1295

Not FDA-approved · development stopped after Phase 2

Not available29 aa · 3,647.2 g/mol

Ipamorelin

Never approved · Phase 2 program stopped for lack of efficacy

Not available5 aa · 711.9 g/mol

Sermorelin

Compounded · not FDA-approved · no approved adult use

Compounded · not FDA-approved29 aa · 3,357.9 g/mol

Tesamorelin

Egrifta · approved only for HIV-associated lipodystrophy

FDA-approved · by prescription44 aa · 5,136 g/mol

GHRP-2

Not FDA-approved · diagnostic use in Japan only

Not available6 aa · 818 g/mol

GHRP-6

Never approved anywhere · small human studies only

Not available6 aa · 873 g/mol

IGF-1 LR3

Never tested in human trials · not the same as Increlex

Not available83 aa · 9,111.5 g/mol