The Library
Every peptide, graded on its evidence
52 compounds across 9 categories — mechanism, evidence, protocols, interactions, and monitoring for each.
52 compounds
Semaglutide
Ozempic · Wegovy
The most rigorously studied GLP-1 receptor agonist for weight and glycemic control.
Tirzepatide
Mounjaro · Zepbound
Dual GIP/GLP-1 agonist producing the largest weight reduction of any approved agent to date.
Retatrutide
LY3437943 · Triple-G
Investigational triple agonist targeting GIP, GLP-1, and glucagon receptors simultaneously.
Liraglutide
Saxenda · Victoza
Daily GLP-1 agonist — the predecessor to semaglutide, still useful where fine dose control matters.
Cagrilintide
AM833
Long-acting amylin analogue that targets satiety through a pathway independent of GLP-1.
AOD-9604
Anti-Obesity Drug 9604 · hGH fragment analogue
A growth hormone fragment marketed for fat loss that failed to beat placebo in human trials.
HGH Fragment 176-191
Frag 176-191 · Lipolytic fragment
The unmodified GH fragment AOD-9604 was derived from — same lipolytic claim, weaker evidence.
5-Amino-1MQ
5-Amino-1-methylquinolinium
Oral NNMT inhibitor studied in rodents for fat-cell metabolism — no human trials exist.
Ipamorelin
NNC 26-0161
The most selective GH secretagogue — a clean pulse of growth hormone with minimal off-target signalling.
CJC-1295 (no DAC)
Mod GRF 1-29 · Modified GRF (1-29)
A stabilised GHRH fragment that amplifies each natural GH pulse — the standard partner to a secretagogue.
Tesamorelin
Egrifta · TH9507
The one FDA-approved GHRH analogue — proven to reduce visceral fat in clinical trials.
Sermorelin
GRF 1-29 · Geref
The original GHRH analogue — once FDA-approved for pediatric GH deficiency, now used off-label for GH support.
MK-677 (Ibutamoren)
Ibutamoren · Nutrobal
An orally active, long-acting GH secretagogue — convenient but notably raises appetite and blood sugar.
BPC-157
Body Protection Compound 157 · Pentadecapeptide BPC 157
A synthetic gastric peptide with broad tissue-healing signals in animals — but no completed human trials.
TB-500
Thymosin Beta-4 fragment · TB4-Frag
A synthetic thymosin beta-4 peptide studied for cell migration and tissue repair in animal models.
GHK-Cu
Copper Peptide · Copper Tripeptide-1
A copper-binding tripeptide with genuine human topical evidence for skin, collagen, and wound healing.
KPV
Lysine-Proline-Valine · α-MSH 11-13
An anti-inflammatory tripeptide fragment of α-MSH studied for gut inflammation and skin conditions.
Larazotide Acetate
AT-1001 · INN-202
A tight-junction regulator studied in human celiac trials for intestinal barrier integrity.
Semax
ACTH 4-10 analogue
A Russian-developed neuropeptide used clinically there for stroke and cognition, with limited Western data.
Selank
TP-7 · Tuftsin analogue
An anxiolytic neuropeptide developed in Russia — calming without the sedation of benzodiazepines.
Dihexa
N-hexanoic-Tyr-Ile-(6) aminohexanoic amide · PNB-0408
An experimental angiotensin-derived peptide with striking synaptogenic potency in preclinical work — and no human data.
Cerebrolysin
FPF-1070
A porcine-brain-derived peptide mixture studied in humans for stroke, dementia, and traumatic brain injury.
MOTS-c
Mitochondrial ORF of the 12S rRNA type-c
A mitochondrial-derived peptide that acts like an exercise mimetic in animal metabolic studies.
Epitalon
Epithalon · AEDG peptide
A four-amino-acid pineal peptide claimed to activate telomerase — bold claims, mostly Russian data.
NAD+
Nicotinamide adenine dinucleotide
A central metabolic coenzyme dosed to counter its age-related decline — a molecule, not a peptide.
Thymosin Alpha-1
Tα1 · Zadaxin
An immune-modulating thymic peptide approved in dozens of countries for hepatitis and as an immune adjunct.
LL-37
Cathelicidin · hCAP-18 fragment
The body's own antimicrobial peptide, studied for infection defence and wound healing.
Thymosin Beta-4
Tβ4 · Full-length thymosin beta-4
The full-length parent protein behind TB-500, studied in humans for cardiac, corneal, and wound repair.
PT-141 (Bremelanotide)
Bremelanotide · Vyleesi
An FDA-approved melanocortin agonist that acts on the brain to increase sexual desire.
Melanotan II
MT-2 · MT-II
A melanocortin agonist that tans skin and raises libido — with a notably troublesome side-effect profile.
Kisspeptin-10
KP-10 · Metastin fragment
An upstream reproductive-axis hormone studied in humans for libido and hormonal signalling.
DSIP
Delta Sleep-Inducing Peptide
A naturally occurring nonapeptide studied for sleep, stress resilience, and pain modulation.
IGF-1 LR3
Long R3 IGF-1
A potent, long-acting IGF-1 analogue with strong anabolic signalling — and serious safety caveats.
Melanotan I
MT-1 · Afamelanotide (analogue)
A more selective melanocortin agonist for tanning, with fewer of Melanotan II's off-target effects.
VIP
Vasoactive Intestinal Peptide
A signalling peptide used off-label intranasally for chronic inflammatory response (CIRS) recovery.
SS-31 (Elamipretide)
Elamipretide · MTP-131
A mitochondria-targeting peptide in human trials for mitochondrial and age-related disease.
ARA-290 (Cibinetide)
Cibinetide · pHBSP
A non-erythropoietic EPO-derived peptide studied in humans for neuropathic pain and inflammation.
SLU-PP-332
ERR agonist
An experimental 'exercise mimetic' that activates estrogen-related receptors — animal data only.
AICAR
Acadesine · AICA riboside
An AMPK-activating 'exercise mimetic' with animal endurance data — and a WADA ban.
Glutathione
GSH · Reduced glutathione
The body's master antioxidant tripeptide, dosed for oxidative stress, detox, and skin.
Oxytocin
Oxytocin Acetate
The 'bonding' hormone, studied intranasally for social, mood, and intimacy effects.
HCG
Human Chorionic Gonadotropin
A gonadotropin that stimulates the body's own testosterone — used in TRT support and fertility.
Pinealon
Glu-Asp-Arg tripeptide
A short Khavinson bioregulator peptide studied in Russia for neuroprotection and cognition.
Adamax
N-Acetyl Semax analogue
A research nootropic peptide in the Semax family, with little formal evidence.
Vitamin B12
Methylcobalamin · Cyanocobalamin
An essential vitamin injected for deficiency, energy, and nerve health — well established and very safe.
GHRP-6
Growth Hormone Releasing Peptide 6
An older ghrelin-mimetic secretagogue with strong GH release — and strong hunger.
Wolverine Blend (BPC-157 / TB-500)
BPC-157 + TB-500 · Wolverine
The classic recovery pairing — BPC-157 and TB-500 in one vial for soft-tissue repair.
GLOW Blend (GHK-Cu / BPC-157 / TB-500)
GLOW · GHK-Cu + BPC + TB
A skin-and-recovery blend pairing copper-peptide collagen support with the two recovery peptides.
KLOW Blend (KPV / GHK-Cu / BPC-157 / TB-500)
KLOW · GLOW + KPV
GLOW plus the anti-inflammatory tripeptide KPV — aimed at gut, skin, and systemic recovery.
Reta / Carg Blend (Retatrutide / Cagrilintide)
Retatrutide + Cagrilintide · Reta-Carg
An aggressive weight blend pairing a triple incretin agonist with an amylin analogue.
CJC-1295 / Ipamorelin Blend
CJC no DAC + Ipamorelin · CJC/Ipa
The canonical growth-hormone stack — a GHRH analogue and a selective secretagogue in one vial.
Semax / Selank Blend
Semax + Selank
A nootropic-plus-anxiolytic pairing — focus from Semax, calm from Selank, in one nasal formula.
Research & educational information only — not medical advice.
You must be 18 or older to use this site. The peptides described are presented as research chemicals intended for research purposes only. Most are not approved by the FDA for human use. Dosing ranges reflect what has appeared in the scientific literature or community protocols and are not prescriptions. Nothing here replaces evaluation by a licensed physician who knows your full medical history.
Not sure where to begin? Take the goal assessment and let your answers narrow it down.