Merit

For research use only. Not for human consumption. Not medical advice — consult a licensed clinician.

Evidence explorer

Filter peptides by how strong the evidence actually is.

Human trials, animal studies, mechanistic work, and real-world clinical pearls — each tagged, graded, and linked to its source. Sort the hype from the signal.

Evidence type
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77 of 82 compounds have citations on file

Tirzepatide

GLP-1 / Metabolic

A Cohort study · 20C Animal · 2C · 14

36 graded studies — human trials, animal studies, in-vitro · mechanistic.

Semaglutide

GLP-1 / Metabolic

A Human trial (RCT) · 24C Animal · 5C · 6

35 graded studies — human trials, animal studies, in-vitro · mechanistic.

Oxytocin

Nootropic / Cognitive

C Human trial (RCT) · 17C Animal · 3C Review · 14

34 graded studies — human trials, animal studies, in-vitro · mechanistic.

Glutathione

Immune Modulator

C Human trial (RCT) · 16C Animal · 3C · 14

33 graded studies — human trials, animal studies, in-vitro · mechanistic.

Retatrutide

GLP-1 / Metabolic

B Human trial (RCT) · 19C Animal · 3C · 11

33 graded studies — human trials, animal studies, in-vitro · mechanistic.

Liraglutide

GLP-1 / Metabolic

C Cohort study · 18C Animal · 4C · 10

32 graded studies — human trials, animal studies, in-vitro · mechanistic.

NAD+

Immune Modulator

C Cohort study · 16C Animal · 1C · 15

32 graded studies — human trials, animal studies, in-vitro · mechanistic.

LL-37

Immune Modulator

C Cohort study · 16C Animal · 3C · 12

31 graded studies — human trials, animal studies, in-vitro · mechanistic.

P21

Nootropic / Cognitive

C Cohort study · 16C Animal · 3C · 11

30 graded studies — human trials, animal studies, in-vitro · mechanistic.

Tesamorelin

Growth Hormone Secretagogues

A Case report · 16C Animal · 2B Review · 12

30 graded studies — human trials, animal studies, in-vitro · mechanistic.

Gonadorelin

Growth Hormone Secretagogues

C Case report · 18C Animal · 4C · 7

29 graded studies — human trials, animal studies, in-vitro · mechanistic.

Mazdutide

GLP-1 / Metabolic

C Human trial (RCT) · 20C Animal · 2C · 7

29 graded studies — human trials, animal studies, in-vitro · mechanistic.

Sermorelin

Growth Hormone Secretagogues

C Human trial (RCT) · 14C Review · 15

29 graded studies — human trials, in-vitro · mechanistic.

Survodutide

GLP-1 / Metabolic

C Human trial (RCT) · 18C Review · 11

29 graded studies — human trials, in-vitro · mechanistic.

Cerebrolysin

Nootropic / Cognitive

C Meta-analysis · 16C Animal · 2C · 10

28 graded studies — human trials, animal studies, in-vitro · mechanistic.

Enclomiphene

Immune Modulator

C Cohort study · 19C Review · 9

28 graded studies — human trials, in-vitro · mechanistic.

Thymosin Alpha-1

Immune Modulator

C Human trial (RCT) · 17C · 11

28 graded studies — human trials, in-vitro · mechanistic.

Vasoactive Intestinal Peptide (VIP)

Immune Modulator

C Human trial (RCT) · 13C Animal · 4C · 11

28 graded studies — human trials, animal studies, in-vitro · mechanistic.

Cagrilintide

GLP-1 / Metabolic

C Human trial (RCT) · 19C · 8

27 graded studies — human trials, in-vitro · mechanistic.

CagriSema

GLP-1 / Metabolic

C Human trial (RCT) · 19C Animal · 1C Review · 7

27 graded studies — human trials, animal studies, in-vitro · mechanistic.

Orforglipron

GLP-1 / Metabolic

C Meta-analysis · 15C · 12

27 graded studies — human trials, in-vitro · mechanistic.

MOTS-c

GLP-1 / Metabolic

C Human trial (RCT) · 7C Animal · 7C Review · 10

24 graded studies — human trials, animal studies, in-vitro · mechanistic.

Selank

Nootropic / Cognitive

C Human trial (RCT) · 9C Animal · 8C Review · 5

22 graded studies — human trials, animal studies, in-vitro · mechanistic.

MK-677

Growth Hormone Secretagogues

C Human trial (RCT) · 12C Animal · 1C Review · 8

21 graded studies — human trials, animal studies, in-vitro · mechanistic.

Tesofensine

GLP-1 / Metabolic

C Human trial (RCT) · 10C Animal · 4C Review · 7

21 graded studies — human trials, animal studies, in-vitro · mechanistic.

BPC-157

Healing & Recovery

C Human trial (RCT) · 2C Animal · 6B Clinical pearl · 12

20 graded studies — human trials, animal studies, in-vitro · mechanistic.

Humanin

Growth Hormone Secretagogues

C Human trial (RCT) · 6C Animal · 5C Review · 9

20 graded studies — human trials, animal studies, in-vitro · mechanistic.

ACE-031

Growth Hormone Secretagogues

C Human trial (RCT) · 4C Animal · 2C Review · 12

18 graded studies — human trials, animal studies, in-vitro · mechanistic.

GHK

Healing & Recovery

C Human trial (RCT) · 4C Animal · 5C · 9

18 graded studies — human trials, animal studies, in-vitro · mechanistic.

Kisspeptin-10

Growth Hormone Secretagogues

C Human trial (RCT) · 5C Animal · 6C · 7

18 graded studies — human trials, animal studies, in-vitro · mechanistic.

Ipamorelin

Growth Hormone Secretagogues

B Human trial (RCT) · 3C Animal · 2C · 12

17 graded studies — human trials, animal studies, in-vitro · mechanistic.

PT-141

Melanocortin

C Human trial (RCT) · 4C · 13

17 graded studies — human trials, in-vitro · mechanistic.

TB-500

Healing & Recovery

C Human trial (RCT) · 2C Review · 15

17 graded studies — human trials, in-vitro · mechanistic.

ARA-290

Healing & Recovery

C Human trial (RCT) · 4C Animal · 4C Review · 8

16 graded studies — human trials, animal studies, in-vitro · mechanistic.

Cardiogen

Immune Modulator

C Human trial (RCT) · 4C · 12

16 graded studies — human trials, in-vitro · mechanistic.

Melanotan II

Melanocortin

C Human trial (RCT) · 5C Animal · 3C · 8

16 graded studies — human trials, animal studies, in-vitro · mechanistic.

Adamax

Immune Modulator

C · 15

15 graded studies — in-vitro · mechanistic.

GHK-Cu

Healing & Recovery

C Human trial (RCT) · 2C Animal · 7C Review · 6

15 graded studies — human trials, animal studies, in-vitro · mechanistic.

AOD-9604

GLP-1 / Metabolic

C Animal · 2D Review · 12

14 graded studies — animal studies, in-vitro · mechanistic.

CJC-1295

Growth Hormone Secretagogues

B Human trial (RCT) · 2C · 12

14 graded studies — human trials, in-vitro · mechanistic.

Follistatin 344

Growth Hormone Secretagogues

C Animal · 2C Review · 12

14 graded studies — animal studies, in-vitro · mechanistic.

GHRP-2

Growth Hormone Secretagogues

C Case report · 3C Animal · 1C Review · 10

14 graded studies — human trials, animal studies, in-vitro · mechanistic.

SS-31

Growth Hormone Secretagogues

C Human trial (RCT) · 2C Animal · 4C · 8

14 graded studies — human trials, animal studies, in-vitro · mechanistic.

DSIP

Nootropic / Cognitive

C Animal · 1C Review · 12

13 graded studies — animal studies, in-vitro · mechanistic.

Epithalon

Immune Modulator

C Meta-analysis · 1C Animal · 3C Review · 9

13 graded studies — human trials, animal studies, in-vitro · mechanistic.

GHRP-6

Growth Hormone Secretagogues

C Animal · 6C · 7

13 graded studies — animal studies, in-vitro · mechanistic.

Hexarelin

Growth Hormone Secretagogues

C Animal · 5C Review · 8

13 graded studies — animal studies, in-vitro · mechanistic.

IGF-1 LR3

Growth Hormone Secretagogues

C Animal · 7C Review · 6

13 graded studies — animal studies, in-vitro · mechanistic.

KPV

Healing & Recovery

C Animal · 2C Review · 11

13 graded studies — animal studies, in-vitro · mechanistic.

Melanotan I

Melanocortin

C Case report · 3C Animal · 1C Review · 9

13 graded studies — human trials, animal studies, in-vitro · mechanistic.

RAD-140

Immune Modulator

C Case report · 10C · 3

13 graded studies — human trials, in-vitro · mechanistic.

Semax

Nootropic / Cognitive

C Animal · 6C Review · 7

13 graded studies — animal studies, in-vitro · mechanistic.

SLU-PP-332

Immune Modulator

C Animal · 3C Review · 10

13 graded studies — animal studies, in-vitro · mechanistic.

SNAP-8

Healing & Recovery

C Case report · 2C · 11

13 graded studies — human trials, in-vitro · mechanistic.

Thymulin

Immune Modulator

C Human trial (RCT) · 1C Animal · 2C · 10

13 graded studies — human trials, animal studies, in-vitro · mechanistic.

Vilon

Immune Modulator

C Meta-analysis · 2C Review · 11

13 graded studies — human trials, in-vitro · mechanistic.

Adipotide

GLP-1 / Metabolic

C Cohort study · 1C Animal · 2C Review · 9

12 graded studies — human trials, animal studies, in-vitro · mechanistic.

Dihexa

Nootropic / Cognitive

C Animal · 4C · 8

12 graded studies — animal studies, in-vitro · mechanistic.

FOXO4-DRI

Nootropic / Cognitive

C Animal · 3C Review · 9

12 graded studies — animal studies, in-vitro · mechanistic.

Livagen

Immune Modulator

C Animal · 2C Review · 10

12 graded studies — animal studies, in-vitro · mechanistic.

PEG-MGF

Growth Hormone Secretagogues

C Human trial (RCT) · 10C · 2

12 graded studies — human trials, in-vitro · mechanistic.

Pinealon

Nootropic / Cognitive

C Cohort study · 1C Animal · 6C Review · 5

12 graded studies — human trials, animal studies, in-vitro · mechanistic.

Thymalin

Immune Modulator

C Animal · 1C Review · 11

12 graded studies — animal studies, in-vitro · mechanistic.

Thymogen

Immune Modulator

C Animal · 2C Review · 10

12 graded studies — animal studies, in-vitro · mechanistic.

Vesugen

Immune Modulator

C Animal · 4C · 6

10 graded studies — animal studies, in-vitro · mechanistic.

5-Amino-1MQ

GLP-1 / Metabolic

C Review · 9

9 graded studies — in-vitro · mechanistic.

CJC-1295/Ipamorelin

Growth Hormone Secretagogues

C Clinical pearl · 7

7 graded studies — in-vitro · mechanistic.

PE-22-28

Nootropic / Cognitive

C Human trial (RCT) · 1C Animal · 1C · 5

7 graded studies — human trials, animal studies, in-vitro · mechanistic.

Testagen

Immune Modulator

C Human trial (RCT) · 2C Animal · 1C · 4

7 graded studies — human trials, animal studies, in-vitro · mechanistic.

Prostamax

Immune Modulator

C Animal · 2C · 4

6 graded studies — animal studies, in-vitro · mechanistic.

AHK-Cu

Healing & Recovery

C Review · 5

5 graded studies — in-vitro · mechanistic.

Semax + Selank

Nootropic / Cognitive

C Animal · 2C Review · 2

4 graded studies — animal studies, in-vitro · mechanistic.

BPC-157 + TB-500

Healing & Recovery

C Review · 3

3 graded studies — in-vitro · mechanistic.

Cartalax

Healing & Recovery

C Human trial (RCT) · 1C Review · 2

3 graded studies — human trials, in-vitro · mechanistic.

Tesamorelin + Ipamorelin

Growth Hormone Secretagogues

C · 2

2 graded studies — in-vitro · mechanistic.

Pentadecapeptide BPC (Oral)

Healing & Recovery

C Human trial (RCT) · 1

1 graded study — human trials.

TB-500 + GHK-Cu

Healing & Recovery

C · 1

1 graded study — in-vitro · mechanistic.

BPC-157 + GHK-Cu

Healing & Recovery

No published citations on file yet.

GLOW Blend (GHK-Cu + BPC-157 + TB-500)

Healing & Recovery

No published citations on file yet.

KLOW Blend (GHK-Cu + BPC-157 + TB-500 + KPV)

Healing & Recovery

No published citations on file yet.

KPV + GHK-Cu

Healing & Recovery

No published citations on file yet.

Thymosin Alpha-1 + Thymalin

Immune Modulator

No published citations on file yet.

Research use only — not for human consumption and not approved by the FDA. Nothing here is medical advice.

Evidence summaries are not medical advice and not a recommendation to use any compound. Research use only.