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Evidence before payment.

Independent · sourced · no medical advice

Free. No ads. No company can pay to change a result. PepCred does not certify safety or recommend treatment. A positive finding means only that the specifically named independent records matched.

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Evidence grades

What the published science actually shows

Each compound is graded on the strength of published evidence, with human, animal and in-vitro tiers never merged. This is about the state of the evidence — not how to use anything. No dosing, no protocols.

What the grades mean

A: Two or more confirmatory human RCTs (an approved product, or completed Phase 3).
B: One human RCT, Phase-2-only RCTs, or three or more other human studies.
C: At least one other human study.
D: Animal evidence only.
F: In-vitro / mechanistic only, or none.

The Evidence Grade rates only the strength of published evidence — human, animal and in-vitro kept strictly separate — not safety or efficacy. A = two or more confirmatory human RCTs, down to F = lab-bench evidence only.

Sermorelin

GHRH analogue

Medium confidenceHuman (other)

35 vendors carry it

TB-500

Thymosin beta-4 fragment

Medium confidenceHuman (other)

50 vendors carry it

Cagrilintide

Long-acting amylin analogue

High confidenceHuman RCT

24 vendors carry it

BPC-157

Synthetic peptide fragment

Low confidenceMechanistic

50 vendors carry it

AOD-9604

GH fragment analogue

Medium confidenceHuman (other)

36 vendors carry it

NAD+

Coenzyme / metabolic cofactor

Medium confidenceHuman (other)

9 vendors carry it

Tesamorelin

GHRH analogue

High confidenceHuman RCT

42 vendors carry it

SS-31

Mitochondria-targeted peptide

High confidenceHuman RCT

4 vendors carry it

Epitalon

Synthetic tetrapeptide

High confidenceHuman (other)

37 vendors carry it

Semaglutide

GLP-1 receptor agonist

High confidenceHuman RCT

23 vendors carry it

Retatrutide

Triple GIP/GLP-1/glucagon agonist

High confidenceHuman RCT

25 vendors carry it

PT-141

Melanocortin receptor agonist

High confidenceHuman RCT

38 vendors carry it

CJC-1295

GHRH analogue

Medium confidenceHuman RCT

44 vendors carry it

MOTS-c

Mitochondrial-derived peptide

Low confidenceIn-vitro

43 vendors carry it

MK-677

Oral GH secretagogue (non-peptide)

Medium confidenceHuman RCT

16 vendors carry it

Ipamorelin

Growth hormone secretagogue (GHRP)

Medium confidenceHuman RCT

49 vendors carry it

GHK-Cu

Copper-binding tripeptide

Low confidenceAnimal

50 vendors carry it

DSIP

Neuropeptide

Medium confidenceHuman (other)

12 vendors carry it

KPV

Anti-inflammatory tripeptide

Medium confidenceHuman (other)

0 vendors carry it

5-Amino-1MQ

Small-molecule NNMT inhibitor

Low confidenceAnimal

27 vendors carry it

Selank

Synthetic heptapeptide

Low confidenceAnimal

37 vendors carry it

Tirzepatide

Dual GIP/GLP-1 receptor agonist

High confidenceHuman RCT

23 vendors carry it

Melanotan II

Melanocortin receptor agonist

Medium confidenceHuman (other)

15 vendors carry it

Thymosin Alpha-1

Immunomodulatory peptide

Medium confidenceHuman (other)

32 vendors carry it

Semax

Synthetic peptide (ACTH fragment analogue)

Low confidenceAnimal

39 vendors carry it