The directory

Every peptide, filtered by what matters

Not by hype — by evidence. Filter the full catalogue by your goal, how strong the evidence is, whether it’s approved, and whether it’s banned in sport.

Goal
All goalsWeight lossMuscle growthHealing & recoverySkin & beautyLongevityBrain & cognitiveSexual healthImmune supportGut healthSleep & stressMetabolic
GradeABCD
StatusApprovedIn human trialsResearch-only
28 of 28 peptides
A
Semaglutide
Approved GLP-1 drug with robust human trials for weight loss and diabetes.
Weight lossMetabolicApproved
A
Tirzepatide
Approved dual GLP-1/GIP agonist; strongest approved weight-loss data per mg.
Weight lossMetabolicApproved
A
Liraglutide
Earlier approved GLP-1; effective, now largely superseded by newer agents.
Weight lossMetabolicApproved
A
PT-141 (Bremelanotide)
Approved (Vyleesi) for low sexual desire; melanocortin agonist.
Sexual healthApproved
A
Insulin
The original therapeutic peptide (1921). Approved, life-saving — and a peptide.
MetabolicApprovedSport: banned
A
Oxytocin
Approved hormone; explored off-label for bonding and mood.
Sexual healthBrain & cognitiveApproved
B
Tesamorelin
Approved for HIV-related visceral fat; notable for stripping belly fat.
Weight lossMetabolicMuscle growthApprovedSport: banned
B
Thymosin Alpha-1
Immune-modulating peptide approved in several countries.
Immune supportApproved
C
Retatrutide
Phase-3 triple agonist; striking trial results but not yet approved.
Weight lossMetabolicIn trials
C
GHK-Cu
Copper peptide with some human skin studies; topical form widely sold.
Skin & beautyHealing & recoveryResearch-only
C
Ipamorelin
GH secretagogue; limited human data, popular in recovery stacks.
Muscle growthLongevityResearch-onlySport: banned
C
MK-677 (Ibutamoren)
Oral GH secretagogue (not strictly a peptide); some human data, raises glucose.
Muscle growthSleep & stressResearch-onlySport: banned
C
Sermorelin
GHRH analogue once approved for GH deficiency; modest human evidence.
Muscle growthLongevityApprovedSport: banned
C
Selank
Anxiolytic peptide studied mainly in Russia; limited Western data.
Brain & cognitiveSleep & stressResearch-only
C
Semax
Nootropic/neuroprotective peptide; Russian studies, sparse global trials.
Brain & cognitiveResearch-only
C
Cerebrolysin
Used clinically in some countries for stroke/dementia; mixed evidence.
Brain & cognitiveApproved
D
BPC-157
Hugely popular for healing; strong animal data, no controlled human trials yet.
Healing & recoveryGut healthResearch-onlySport: banned
D
TB-500
Thymosin Beta-4 fragment; promoted for recovery, evidence is preclinical.
Healing & recoveryMuscle growthResearch-onlySport: banned
D
CJC-1295
GHRH analogue often paired with ipamorelin; evidence is thin in humans.
Muscle growthLongevityResearch-onlySport: banned
D
IGF-1 LR3
Long-acting IGF-1; bodybuilding favourite with real safety concerns.
Muscle growthResearch-onlySport: banned
D
Melanotan II
Tanning + libido effects; real safety concerns including mole/melanoma risk.
Skin & beautySexual healthResearch-only
D
MOTS-c
Mitochondrial peptide dubbed "exercise in a vial"; mostly preclinical.
MetabolicLongevityResearch-only
D
Epitalon
Promoted as anti-ageing via telomerase; human evidence is very limited.
LongevityResearch-only
D
AOD-9604
A GH fragment marketed for fat loss; human trials were largely disappointing.
Weight lossResearch-only
D
5-Amino-1MQ
Emerging metabolic compound; early research only.
MetabolicWeight lossResearch-only
D
DSIP
Delta sleep-inducing peptide; intriguing name, weak human evidence.
Sleep & stressResearch-only
D
KPV
Anti-inflammatory tripeptide; promising preclinical gut data.
Gut healthHealing & recoveryImmune supportResearch-only
D
LL-37
Antimicrobial peptide; early research, handle claims with caution.
Immune supportHealing & recoveryResearch-only

Grades reflect the strongest human evidence supporting a peptide’s main claims (A = approved + proven, D = animal evidence only). Status and legality are informational, not legal or medical advice. Many peptides listed are not approved medicines.

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