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.

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89 of 102 compounds have citations on file

MOTS-c

GLP-1 / Metabolic

C Cohort study · 8C Animal · 6C · 9

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

Retatrutide

GLP-1 / Metabolic

B Human trial (RCT) · 11C Animal · 3C Review · 9

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

Semaglutide

GLP-1 / Metabolic

A Human trial (RCT) · 14C Animal · 2C · 7

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

Tesamorelin

Growth Hormone Secretagogues

A Human trial (RCT) · 13C Animal · 1B Review · 9

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

Tirzepatide

GLP-1 / Metabolic

A Cohort study · 13C Review · 10

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

Cagrilintide

GLP-1 / Metabolic

C Human trial (RCT) · 12C · 8

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

CagriSema

GLP-1 / Metabolic

C Human trial (RCT) · 13C Review · 7

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

Cerebrolysin

Nootropic / Cognitive

C Meta-analysis · 9C Animal · 1C · 10

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

Glutathione

Immune Modulator

C Human trial (RCT) · 8C Animal · 1C · 11

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

Gonadorelin

Growth Hormone Secretagogues

C Human trial (RCT) · 8C Animal · 5C · 7

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

hCG

C Case report · 10C · 10

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

Larazotide

Healing & Recovery

C Human trial (RCT) · 9C Animal · 2C Review · 9

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

Liraglutide

GLP-1 / Metabolic

C Case report · 9C Animal · 6C · 5

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

LL-37

Immune Modulator

C Cohort study · 9C Animal · 2C · 9

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

Mazdutide

GLP-1 / Metabolic

C Human trial (RCT) · 12C Animal · 1C · 7

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

MGF

Growth Hormone Secretagogues

C Human trial (RCT) · 8C Animal · 5C · 7

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

Oxytocin

Nootropic / Cognitive

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

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

P21

Nootropic / Cognitive

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

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

Selank

Nootropic / Cognitive

C Human trial (RCT) · 8C Animal · 7C Review · 5

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

Sermorelin

Growth Hormone Secretagogues

C Human trial (RCT) · 8C Review · 12

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

Survodutide

GLP-1 / Metabolic

C Human trial (RCT) · 8C · 12

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

Teriparatide

Healing & Recovery

C Cohort study · 9C · 11

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

Thymosin Alpha-1

Immune Modulator

C Human trial (RCT) · 10C · 10

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

Vasoactive Intestinal Peptide (VIP)

Immune Modulator

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

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

BPC-157

Healing & Recovery

C Human trial (RCT) · 2C Animal · 6B Review · 11

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

Humanin

Growth Hormone Secretagogues

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

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

Argireline

Healing & Recovery

C Cohort study · 7C Animal · 1C Review · 10

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

Ipamorelin

Growth Hormone Secretagogues

B Human trial (RCT) · 3C Animal · 4C · 10

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

Kisspeptin-10

Growth Hormone Secretagogues

C Human trial (RCT) · 5C Animal · 4C · 8

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

ACE-031

Growth Hormone Secretagogues

C Human trial (RCT) · 6C Animal · 2C Review · 8

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

ARA-290

Healing & Recovery

C Human trial (RCT) · 7C Animal · 5C Review · 4

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

Cardiogen

Immune Modulator

C Human trial (RCT) · 4C Review · 12

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

GHK

Healing & Recovery

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

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

PT-141

Melanocortin

C Human trial (RCT) · 8C Review · 8

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

TB-500

Healing & Recovery

C Human trial (RCT) · 2C Animal · 1C Review · 12

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

Tirzepatide + Retatrutide

GLP-1 / Metabolic

C Human trial (RCT) · 3C Review · 12

15 graded studies — human trials, 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 Animal · 2C Review · 10

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

GHK-Cu

Healing & Recovery

C Human trial (RCT) · 2C Animal · 5C · 7

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

SS-31

Growth Hormone Secretagogues

C Human trial (RCT) · 2C Animal · 9C · 3

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

Bronchogen

Immune Modulator

C Cohort study · 4C Animal · 3C Review · 6

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

Cortagen

Nootropic / Cognitive

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

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

Melanotan II

Melanocortin

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

13 graded studies — human trials, animal studies, 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.

Adamax

Immune Modulator

C · 12

12 graded studies — 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.

Dermorphin

Nootropic / Cognitive

C Animal · 6C · 6

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

Dihexa

Nootropic / Cognitive

C Animal · 5C Review · 7

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

DSIP

Nootropic / Cognitive

C Animal · 1C · 11

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

Epithalon

Immune Modulator

C Meta-analysis · 1C Animal · 3C Review · 8

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

Follistatin 344

Growth Hormone Secretagogues

C Animal · 2C Review · 10

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.

GHRP-2

Growth Hormone Secretagogues

C Cohort study · 3C Animal · 1C · 8

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

GHRP-6

Growth Hormone Secretagogues

C Animal · 6C · 6

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

Hexarelin

Growth Hormone Secretagogues

C Animal · 4C Review · 8

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

IGF-1 LR3

Growth Hormone Secretagogues

C Animal · 6C Review · 6

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

KPV

Healing & Recovery

C · 12

12 graded studies — in-vitro · mechanistic.

Livagen

Immune Modulator

C Animal · 2C Review · 10

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

Matrixyl

Healing & Recovery

C Animal · 1C Review · 11

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

Melanotan I

Melanocortin

C Case report · 3C Animal · 3C Review · 6

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

Ovagen

Immune Modulator

C Case report · 2C Animal · 1C · 9

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

Pancragen

Immune Modulator

C Case report · 1C Animal · 3C Review · 8

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

Pinealon

Nootropic / Cognitive

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

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

Semax

Nootropic / Cognitive

C Animal · 5C Review · 7

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

SNAP-8

Healing & Recovery

C Cohort study · 2C · 10

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

Syn-Ake

Healing & Recovery

C Case report · 1C Review · 11

12 graded studies — human trials, 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.

PEG-MGF

Growth Hormone Secretagogues

C Human trial (RCT) · 8C Review · 3

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

Vesugen

Immune Modulator

C Animal · 4C · 6

10 graded studies — 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.

Biotinoyl Tripeptide-1

Healing & Recovery

C Human trial (RCT) · 2C Review · 4

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

CJC-1295/Ipamorelin

Growth Hormone Secretagogues

C Review · 6

6 graded studies — in-vitro · mechanistic.

PE-22-28

Nootropic / Cognitive

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

6 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.

Retatrutide + Cagrilintide

GLP-1 / Metabolic

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.

Thymosin Alpha-1 + Thymulin

Immune Modulator

C · 4

4 graded 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.

Chonluten

Immune Modulator

C Review · 3

3 graded studies — in-vitro · mechanistic.

Crystagen

Immune Modulator

C Review · 3

3 graded studies — in-vitro · mechanistic.

Tesamorelin + Ipamorelin

Growth Hormone Secretagogues

C · 2

2 graded studies — in-vitro · mechanistic.

BPC-157 + KPV

Healing & Recovery

C · 1

1 graded study — in-vitro · mechanistic.

HGH Fragment 176-191

GLP-1 / Metabolic

C · 1

1 graded study — 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.

BPC-157 + TB-500 + Cartalax

Healing & Recovery

No published citations on file yet.

BPC-157 + TB-500 + KPV

Healing & Recovery

No published citations on file yet.

GHK-Cu + KPV

Healing & Recovery

No published citations on file yet.

GHK-Cu + KPV + MOTS-c

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.

N-Acetyl Selank Amidate

Nootropic / Cognitive

No published citations on file yet.

N-Acetyl Semax Amidate

Nootropic / Cognitive

No published citations on file yet.

SS-31 + MOTS-c

GLP-1 / Metabolic

No published citations on file yet.

Tesamorelin + CJC-1295 + Ipamorelin

Growth Hormone Secretagogues

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.