Peptide Database

All Peptides

Science-backed profiles for every major peptide. Click any peptide to see full dosage guides, benefits, and protocols.

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BPC-157

$beginner

The ultimate healing peptide

BPC-157 (Body Protection Compound-157) is a synthetic peptide derived from a protein found in the stomach. It has remarkable healing properties and is one of the most studied peptides for tissue repair.

Dosage250-500 mcg/day
Half-life~4 hours
healinggut

TB-500

$$beginner

Systemic healing and recovery

TB-500 (Thymosin Beta-4) is a naturally occurring peptide that plays a crucial role in tissue repair and regeneration. Unlike BPC-157 which works locally, TB-500 acts systemically throughout the body.

Dosage2-2.5mg twice per week
Half-life~2 days
healingperformance

Semaglutide

$$$beginner

The gold standard for weight loss

Semaglutide is a GLP-1 receptor agonist originally developed for type 2 diabetes that has become the most effective peptide for weight loss. Marketed as Ozempic and Wegovy.

Dosage0.25mg - 2.4mg/week
Half-life~7 days
weight lossmetabolic

Tirzepatide

$$$beginner

Next-gen dual-action weight loss

Tirzepatide is a dual GIP/GLP-1 receptor agonist that outperforms semaglutide in clinical trials. Marketed as Mounjaro and Zepbound, it achieves up to 22% body weight reduction.

Dosage2.5mg - 15mg/week
Half-life~5 days
weight lossmetabolic

Ipamorelin

$$intermediate

Clean GH release without side effects

Ipamorelin is a selective growth hormone secretagogue that stimulates GH release from the pituitary gland. It's considered the cleanest GHRP with minimal side effects.

Dosage200-300 mcg, 2-3x daily
Half-life~2 hours
growth hormoneanti aging

CJC-1295

$$intermediate

Sustained GH release for muscle and recovery

CJC-1295 is a GHRH analogue that stimulates prolonged growth hormone release. Often stacked with Ipamorelin for synergistic effects on muscle growth and body composition.

Dosage1-2mg per week (DAC version)
Half-life~6-8 days (DAC version)
growth hormoneperformance

HGH Fragment 176-191

$$intermediate

Targeted fat burning without GH side effects

HGH Fragment 176-191 is a modified form of amino acids 176-191 of the GH polypeptide. It mimics the fat-burning effects of HGH without the growth-promoting properties.

Dosage250-500 mcg, 2x daily
Half-life~30 minutes
fat loss

PT-141

$$beginner

The libido peptide for men and women

PT-141 (Bremelanotide) is a melanocortin receptor agonist that works centrally in the brain to enhance sexual desire and function. Unlike Viagra, it works on the nervous system, not blood flow.

Dosage1-2mg per dose
Half-life~2-3 hours
sexual health

Semax

$$intermediate

Russian cognitive enhancer

Semax is a synthetic peptide derived from ACTH that enhances cognitive function, mood, and neuroprotection. Widely used in Russia for neurological conditions.

Dosage300-900 mcg/day intranasal
Half-life~minutes (but effects last hours)
cognitivenootropic

Selank

$$beginner

Anti-anxiety and cognitive enhancement

Selank is a synthetic analogue of tuftsin with anxiolytic and nootropic properties. Developed in Russia, it reduces anxiety without sedation while enhancing cognitive performance.

Dosage250-500 mcg/day intranasal
Half-life~minutes
cognitiveanxiolytic

Epitalon

$$advanced

The longevity peptide — telomere extension

Epitalon (Epithalon) is a tetrapeptide that activates telomerase, the enzyme responsible for lengthening telomeres. Developed by the St. Petersburg Institute of Bioregulation.

Dosage5-10mg per cycle (10-20 day course)
Half-life~hours
anti aginglongevity

Retatrutide

$$$advanced

Triple-action next-gen weight loss peptide

Retatrutide is a triple GIP/GLP-1/glucagon receptor agonist in Phase 3 trials. Achieves up to 24% weight loss — the highest of any peptide therapy to date.

Dosage4-12mg/week (still in trials)
Half-life~6 days
weight lossmetabolic

AOD-9604

$$intermediate

Targeted fat loss fragment

AOD-9604 is a modified fragment of HGH (amino acids 176-191) with an additional tyrosine molecule. It specifically targets fat metabolism without affecting blood sugar or growth.

Dosage300 mcg/day
Half-life~30 minutes
fat loss

Cagrilintide

$$$advanced

Amylin analogue for next-level weight loss

Cagrilintide is a long-acting amylin analogue being developed by Novo Nordisk. When combined with semaglutide (CagriSema), it achieves over 25% weight loss.

Dosage0.3-2.4mg/week (trial doses)
Half-life~8 days
weight lossmetabolic

Sermorelin

$$intermediate

The natural GHRH analogue for GH restoration

Sermorelin is a synthetic peptide consisting of the first 29 amino acids of growth hormone-releasing hormone (GHRH). It stimulates the pituitary gland to produce and release growth hormone in a pulsatile, physiological pattern.

Dosage200-300 mcg before bed
Half-life~10-20 minutes
growth hormoneanti aging

GHRP-2

$$intermediate

Potent GH secretagogue with strong clinical backing

GHRP-2 (Growth Hormone Releasing Peptide-2) is a synthetic hexapeptide that acts on the ghrelin receptor to stimulate powerful growth hormone release from the pituitary. It is one of the most studied GHRPs and produces a stronger GH response than Ipamorelin, though with slightly more side effects.

Dosage100-300 mcg, 2-3x daily
Half-life~30 minutes
growth hormoneperformance

GHRP-6

$intermediate

GH release with powerful appetite stimulation

GHRP-6 (Growth Hormone Releasing Peptide-6) is a synthetic hexapeptide that stimulates growth hormone secretion through the ghrelin receptor. It is known for producing a strong GH response alongside significant appetite stimulation, making it popular in bulking protocols.

Dosage100-300 mcg, 2-3x daily
Half-life~20-30 minutes
growth hormoneperformance

Hexarelin

$$advanced

The strongest GH-releasing peptide available

Hexarelin is a synthetic hexapeptide and the most potent growth hormone releasing peptide in its class. It produces the highest GH spike of any GHRP, but comes with a significant caveat: rapid receptor desensitization limits effective use to short cycles.

Dosage100-200 mcg, 1-2x daily
Half-life~70 minutes
growth hormoneperformance

GHK-Cu

$$beginner

The copper peptide for skin regeneration and wound repair

GHK-Cu is a naturally occurring copper-binding tripeptide found in human plasma, saliva, and urine. It plays a central role in wound healing, collagen synthesis, and tissue remodeling, making it one of the most studied peptides in dermatology and regenerative medicine.

Dosage1-2mg/day injection or topical application
Half-life~hours (variable by route)
healinganti aging

KPV

$$beginner

Anti-inflammatory tripeptide for gut and immune health

KPV is a naturally occurring tripeptide (Lys-Pro-Val) derived from the C-terminal end of alpha-melanocyte-stimulating hormone (alpha-MSH). It retains the potent anti-inflammatory activity of alpha-MSH without its pigmentation or hormonal effects.

Dosage200-500 mcg/day
Half-life~hours
healinggut

NAD+

$$$intermediate

The cellular energy molecule behind DNA repair and aging

NAD+ (Nicotinamide Adenine Dinucleotide) is a coenzyme found in every living cell that plays a central role in energy metabolism and DNA repair. Declining NAD+ levels are closely linked to aging, and supplementation has become one of the most researched anti-aging interventions.

Dosage250-500mg IV or 100-300mg sublingual
Half-life~45 minutes (IV); variable (sublingual)
anti aginglongevity

Thymosin Alpha-1

$$$intermediate

Clinically proven immune modulator used worldwide

Thymosin Alpha-1 (Ta1) is a 28-amino-acid peptide naturally produced by the thymus gland. Marketed as Zadaxin, it is approved in over 30 countries for hepatitis B/C treatment and as an immune adjunct in cancer therapy.

Dosage1.6 mg twice weekly
Half-life~2 hours
immuneanti aging

DSIP

$beginner

The sleep peptide for deep rest and stress adaptation

DSIP (Delta Sleep-Inducing Peptide) is a naturally occurring neuropeptide that promotes delta-wave sleep and modulates the stress response. Despite its short half-life, its effects on sleep architecture and recovery last for hours.

Dosage100-300 mcg before bed
Half-life~15 minutes
sleeprecovery

MK-677

$$beginner

Oral GH secretagogue for muscle, sleep, and recovery

MK-677 (Ibutamoren) is an orally active, non-peptide growth hormone secretagogue that mimics the action of ghrelin. It stimulates sustained GH and IGF-1 release without requiring injections, making it one of the most accessible growth hormone boosters available.

Dosage10-25 mg/day oral
Half-life~24 hours
growth hormoneperformance

IGF-1 LR3

$$$advanced

Long-acting IGF-1 for direct muscle growth

IGF-1 LR3 is a modified version of insulin-like growth factor 1 with a 13-amino-acid extension that gives it a dramatically longer half-life than native IGF-1. It acts directly on muscle tissue to stimulate hypertrophy, hyperplasia, and satellite cell activation.

Dosage20-50 mcg/day
Half-life~20-30 hours
growth hormoneperformance

Melanotan II

$intermediate

Melanocortin agonist for tanning, libido, and appetite control

Melanotan II is a synthetic analogue of alpha-melanocyte-stimulating hormone (alpha-MSH) that activates melanocortin receptors throughout the body. It stimulates melanin production for skin darkening, increases sexual arousal, and suppresses appetite.

Dosage0.25-0.5mg loading, then 0.5mg/week maintenance
Half-life~1 hour
skinsexual health

Kisspeptin

$$$advanced

GnRH stimulator for natural testosterone and reproductive hormone support

Kisspeptin is a neuropeptide that sits at the top of the reproductive hormone cascade, directly stimulating GnRH neurons to trigger LH and FSH release. It plays a critical role in puberty onset, fertility, and testosterone regulation.

Dosage1-10 nmol/kg (research doses vary widely)
Half-life~28 minutes
hormonalperformance

MOTS-c

$$$intermediate

Mitochondrial peptide that mimics exercise at the cellular level

MOTS-c is a 16-amino-acid peptide encoded by the mitochondrial genome. It acts as a metabolic regulator and exercise mimetic, improving insulin sensitivity, fat oxidation, and cellular energy production.

Dosage5-10 mg/week
Half-life~hours
metabolicperformance

5-Amino-1MQ

$$beginner

NNMT inhibitor that reprograms fat cell metabolism

5-Amino-1MQ is a small molecule that inhibits nicotinamide N-methyltransferase (NNMT), an enzyme overexpressed in fat tissue. By blocking NNMT, it reactivates metabolic pathways in adipocytes and promotes fat loss without stimulant effects.

Dosage50-100 mg/day oral
Half-life~hours
fat lossmetabolic