Peptide Guide

Every peptide we cover, organized by category. Click any peptide for detailed dosage guides, side effects, and research summaries.

Showing 30 peptides

BPC-157

well-studied
Recovery

A gastric pentadecapeptide with potent healing and anti-inflammatory properties. The most researched recovery peptide.

Dosage: 200-500 mcg/day (subcutaneous or oral)
Half-life: Estimated 4-6 hours

Semaglutide

well-studied
Weight Loss

A GLP-1 receptor agonist originally developed for type 2 diabetes, now the most prescribed weight loss medication worldwide.

Dosage: 0.25-2.4 mg/week (titrated up over 16-20 weeks)
Half-life: Approximately 1 week (168 hours)

Tirzepatide

well-studied
Weight Loss

A dual GIP/GLP-1 receptor agonist showing even greater weight loss results than semaglutide in clinical trials.

Dosage: 2.5-15 mg/week (titrated up over 20+ weeks)
Half-life: Approximately 5 days (120 hours)

TB-500

moderate
Recovery

A synthetic fraction of thymosin beta-4 that promotes tissue repair, reduces inflammation, and supports recovery from injuries.

Dosage: 2-5 mg twice weekly (loading), then 2 mg weekly (maintenance)
Half-life: Estimated 14 days

Ipamorelin

moderate
Growth Hormone

A selective growth hormone secretagogue that stimulates natural GH release without significantly affecting cortisol or prolactin.

Dosage: 100-300 mcg, 2-3 times daily
Half-life: Approximately 2 hours

GHK-Cu

well-studied
Anti-Aging

A naturally occurring copper-binding tripeptide with powerful skin regeneration, wound healing, and anti-aging properties.

Dosage: 1-2 mg/day (injection) or topical application (skincare products)
Half-life: Short (minutes to hours), but effects are cumulative

CJC-1295

moderate
Growth Hormone

A synthetic GHRH analog that extends growth hormone release duration through its unique Drug Affinity Complex (DAC).

Dosage: 1-2 mg twice weekly (with DAC) or 100-300 mcg 2-3x daily (without DAC)
Half-life: 6-8 days (with DAC), 30 minutes (without DAC)

PT-141

well-studied
Sexual Health

A melanocortan receptor agonist that enhances libido and sexual arousal through central nervous system effects.

Dosage: 1-2 mg as needed, 1-2 hours before activity
Half-life: Approximately 2-3 hours

Sermorelin

well-studied
Growth Hormone

A bioidentical analog of growth hormone-releasing hormone that stimulates natural pituitary GH production.

Dosage: 200-300 mcg daily, typically at bedtime
Half-life: Approximately 10-20 minutes

AOD-9604

moderate
Weight Loss

A modified fragment of human growth hormone specifically designed for fat burning without affecting blood sugar or growth.

Dosage: 250-500 mcg daily, typically divided into 2 doses
Half-life: Approximately 30 minutes to 1 hour

Selank

moderate
Cognitive

A synthetic anxiolytic peptide with nootropic properties, reducing anxiety while enhancing cognitive function and memory.

Dosage: 250-500 mcg daily, can be split into 2-3 doses
Half-life: Short (minutes), but effects last 6-8 hours

Semax

well-studied
Cognitive

A synthetic ACTH analog with powerful nootropic effects, enhancing memory, learning, and neuroprotection.

Dosage: 200-400 mcg daily, typically in morning
Half-life: Short (minutes), but effects last 6-12 hours

NAD+

emerging
Anti-Aging

A critical coenzyme for cellular energy production and DNA repair that declines significantly with age.

Dosage: 100-500 mg IV infusion or 50-100 mg subcutaneous
Half-life: Very short (minutes), but metabolic effects are sustained

Epithalon

emerging
Anti-Aging

A synthetic tetrapeptide that may activate telomerase and extend cellular lifespan by protecting telomeres.

Dosage: 5-10 mg daily for 10 days, cycled every 3-6 months
Half-life: Short (hours), but effects may be cumulative

DSIP

moderate
Sleep

A naturally occurring neuropeptide that regulates sleep patterns and promotes deep, restorative sleep.

Dosage: 25-100 mcg, 1-2 hours before bedtime
Half-life: Approximately 15-20 minutes

Cerebrolysin

well-studied
Cognitive

A complex mixture of neuropeptides derived from pig brain with potent neuroprotective and neuroregenerative properties.

Dosage: 10-20 ml IV infusion, daily for 10-20 days
Half-life: Complex, varies by peptide component (hours to days)

MOTS-c

emerging
Anti-Aging

A mitochondrial-derived peptide that acts as an exercise mimetic, improving metabolic homeostasis and insulin sensitivity.

Dosage: 5-10 mg weekly (subcutaneous)
Half-life: Estimated 12-15 hours

Thymosin Alpha-1

well-studied
Immune

A thymic peptide that modulates immune function, enhancing T-cell activity and used clinically for hepatitis B and immunodeficiency.

Dosage: 1.6 mg daily or twice weekly
Half-life: Approximately 2 hours

KPV

emerging
Recovery

A tripeptide derived from alpha-MSH with potent anti-inflammatory properties, particularly effective for gut inflammation.

Dosage: 200-500 mcg daily (oral or subcutaneous)
Half-life: Estimated 15-30 minutes

Dihexa

experimental
Cognitive

An angiotensin IV analog with extraordinary potency for cognitive enhancement, reported to be millions of times more potent than BDNF.

Dosage: 10-20 mg orally or 0.5-1 mg subcutaneous (no established safe dose)
Half-life: Estimated 6-12 hours

SS-31

clinical-trials
Anti-Aging

A mitochondria-targeted tetrapeptide that restores cellular energy production and protects against age-related mitochondrial dysfunction.

Dosage: 4-40 mg daily (subcutaneous, clinical trial doses)
Half-life: Approximately 4 hours

FOXO4-DRI

experimental
Anti-Aging

A senolytic peptide that selectively induces apoptosis in senescent cells by disrupting the FOXO4-p53 interaction.

Dosage: 5-10 mg/kg in animal studies (no established human dose)
Half-life: Extended due to D-amino acid structure (estimated days)

Tesamorelin

well-studied
Growth Hormone

An FDA-approved GHRH analog that stimulates growth hormone release, primarily prescribed for HIV-associated lipodystrophy.

Dosage: 2 mg daily (FDA-approved dose)
Half-life: Approximately 26-38 minutes

Kisspeptin

clinical-trials
Sexual Health

A neuropeptide that regulates the reproductive hormone axis, stimulating GnRH release and showing promise for fertility and sexual health.

Dosage: 1-10 nmol/kg IV or 6.4 nmol/kg subcutaneous (clinical research doses)
Half-life: Approximately 28 minutes (kisspeptin-54), shorter for kisspeptin-10

LL-37

emerging
Immune

The only human cathelicidin antimicrobial peptide, providing broad-spectrum defense against bacteria, viruses, and fungi while modulating immune responses.

Dosage: 50-100 mcg subcutaneous (experimental; no established clinical dose)
Half-life: Short (degraded rapidly by proteases, minutes to hours)

Melanotan II

moderate
Sexual Health

A synthetic melanocortin peptide that stimulates melanogenesis (tanning) and has notable effects on libido and sexual function.

Dosage: 0.25-0.5 mg/day (loading), 0.5 mg 1-2x/week (maintenance)
Half-life: Approximately 33 minutes (but biological effects persist much longer)

GHK

moderate
Anti-Aging

A naturally occurring tripeptide with broad regenerative effects on skin, hair, and tissue remodeling — the non-copper-bound form of the GHK family.

Dosage: 1-3 mg/day (subcutaneous) or topical application (skincare)
Half-life: Short (minutes in plasma, effects persist longer)

Hexarelin

moderate
Growth Hormone

One of the most potent synthetic growth hormone secretagogues, stimulating powerful GH release through the ghrelin receptor.

Dosage: 100-200 mcg 2-3x/day (subcutaneous)
Half-life: Approximately 70 minutes

GHRP-6

well-studied
Growth Hormone

A first-generation growth hormone releasing peptide known for potent GH stimulation and strong appetite-enhancing effects.

Dosage: 100-300 mcg 2-3x/day (subcutaneous)
Half-life: Approximately 15-60 minutes

Thymosin Beta-4

moderate
Recovery

The full-length 43-amino acid peptide from which TB-500 is derived, with broad tissue repair, anti-inflammatory, and cardioprotective properties.

Dosage: 1-5 mg 2-3x/week (subcutaneous)
Half-life: Estimated 12-14 days