Peptide Database

39 peptides with sequences, protocols, and research references.

BPC-157

Healing & Recovery

A 15-amino acid peptide derived from human gastric juice. Studied for tissue repair, wound healing, tendon/ligament recovery, and gut protection.

1419.5 Dat½: ~4 hours (stable in gastric juice)Preclinical / Experimental

TB-500

Healing & Recovery

A synthetic version of Thymosin Beta-4, a naturally occurring peptide involved in tissue repair, cell migration, and anti-inflammation.

4963.5 Dat½: ~12-15 daysPreclinical / Experimental

Semaglutide

GLP-1 / Weight Loss

A GLP-1 receptor agonist used for type 2 diabetes and weight management. One of the most studied peptides for metabolic health.

4113.6 Dat½: ~7 daysFDA Approved

Tirzepatide

GLP-1 / Weight Loss

A dual incretin agonist targeting both GIP and GLP-1 receptors. Shows superior weight loss and glycemic control compared to GLP-1-only agonists.

4813.5 Dat½: ~5 daysFDA Approved

CJC-1295

Growth Hormone Peptides

A synthetic analog of growth hormone-releasing hormone (GHRH). Available with or without Drug Affinity Complex (DAC) which extends half-life.

3367.9 Da (no DAC) / 3647.3 Da (with DAC)t½: 30 min (no DAC) / 6-8 days (with DAC)Experimental

Ipamorelin

Growth Hormone Peptides

A selective growth hormone secretagogue (GHS) that stimulates GH release without significantly affecting cortisol, prolactin, or ACTH.

711.9 Dat½: ~2 hoursExperimental

GHK-Cu

Skin & Hair

A naturally occurring copper tripeptide found in human plasma, saliva, and urine. Declines with age. Studied for skin rejuvenation, wound healing, and hair growth.

403.9 Dat½: ~12 hours (topical), ~1 hour (injected)Research compound / Cosmeceutical

Epithalon

Longevity / Anti-Aging

A synthetic tetrapeptide studied for anti-aging properties through telomerase activation and pineal gland function regulation.

390.3 Dat½: ~2-3 hoursExperimental

Selank

Cognitive & Neuroprotective

A synthetic analog of tuftsin with anxiolytic and nootropic properties. Used for anxiety, cognitive enhancement, and immune modulation.

751.9 Dat½: ~2-3 minutes (rapid action, effects last hours)Approved in Russia

Semax

Cognitive & Neuroprotective

A synthetic analog of ACTH(4-7) with neuroprotective and cognitive-enhancing properties. Used for stroke recovery and cognitive disorders.

813.9 Dat½: ~3-5 minutes (effects last hours)Approved in Russia/Ukraine

PT-141

Sexual Health

A melanocortin receptor agonist FDA-approved for hypoactive sexual desire disorder. Works on the central nervous system rather than the vascular system.

1025.2 Dat½: ~2.7 hoursFDA Approved (Vyleesi for HSDD)

Melanotan II

Skin & Hair

A synthetic melanocortin peptide analog that stimulates melanogenesis (tanning) and has secondary effects on sexual function and appetite.

1024.2 Dat½: ~33 minutes (effects last days)Experimental / Not FDA approved

AOD-9604

GLP-1 / Weight Loss

A modified fragment of human growth hormone (amino acids 177-191) that stimulates lipolysis without the growth-promoting or diabetogenic effects of full GH.

1815.1 Dat½: ~6-8 hoursTGA Approved (Australia, oral)

DSIP

Cognitive & Neuroprotective

A neuropeptide that promotes delta-wave sleep and has stress-protective, analgesic, and endocrine-modulating properties.

848.8 Dat½: ~7-8 minutes (effects last hours)Experimental

LL-37

Immune System

A human cathelicidin antimicrobial peptide with broad-spectrum activity against bacteria, viruses, and fungi. Also modulates immune response.

4493.3 Dat½: ~4-6 hoursExperimental

Sermorelin

Growth Hormone Peptides

The first 29 amino acids of GHRH. Stimulates natural GH production and release from the pituitary. Considered a more physiological approach than exogenous GH.

3357.9 Dat½: ~10-20 minutesPreviously FDA Approved (discontinued commercially)

Thymulin

Immune System

A thymic hormone essential for T-cell differentiation and immune regulation. Declines significantly with age as thymus involutes.

847.9 Da (with zinc)t½: ~1-2 hoursExperimental

Retatrutide

GLP-1 / Weight Loss

A triple-hormone receptor agonist targeting GLP-1, GIP, and glucagon receptors simultaneously. Shows the highest weight loss of any obesity drug in trials.

~4700 Dat½: ~6 daysPhase 3 Clinical Trials

Cagrilintide

GLP-1 / Weight Loss

A long-acting amylin analog being developed in combination with semaglutide (CagriSema) for obesity and type 2 diabetes treatment.

~3950 Dat½: ~7 daysPhase 3 Clinical Trials

Tesamorelin

Growth Hormone Peptides

A synthetic GHRH analog FDA-approved for reducing excess abdominal fat in HIV-associated lipodystrophy. Also studied for cognitive benefits and NAFLD.

5135.9 Dat½: ~26 minutes (but sustained GH elevation)FDA Approved (HIV lipodystrophy)

GHRP-6

Growth Hormone Peptides

A first-generation growth hormone secretagogue that stimulates GH release via the ghrelin receptor. Known for strongly increasing appetite.

873.0 Dat½: ~15-60 minutesExperimental

GHRP-2

Growth Hormone Peptides

A second-generation growth hormone secretagogue with the strongest GH release of the GHRP family. Less appetite stimulation than GHRP-6.

817.9 Dat½: ~15-60 minutesApproved in Japan (diagnostic use)

Hexarelin

Growth Hormone Peptides

The most potent GHRP for acute GH release but subject to desensitization with chronic use. Also has cardioprotective properties independent of GH.

887.0 Dat½: ~70 minutesExperimental

MK-677

Growth Hormone Peptides

An orally active, non-peptide growth hormone secretagogue. Mimics ghrelin to stimulate sustained GH and IGF-1 elevation over 24 hours.

528.7 Dat½: ~24 hoursInvestigational (Phase 2 completed)

Kisspeptin-10

Sexual Health

A hypothalamic neuropeptide that stimulates GnRH release, triggering LH and FSH secretion. Being studied for reproductive medicine and as a diagnostic tool.

1302.5 Dat½: ~28 minutesInvestigational

Gonadorelin

Sexual Health

Synthetic gonadotropin-releasing hormone identical to endogenous GnRH. Used diagnostically and to maintain fertility during testosterone therapy.

1182.3 Dat½: ~2-4 minutesFDA Approved (diagnostic)

NAD+

Longevity / Anti-Aging

A critical coenzyme found in every cell, involved in energy metabolism, DNA repair, and sirtuin activation. Declines significantly with age.

663.4 Dat½: ~1-4 hours (IV), variable (oral precursors)Supplement / Research compound

MOTS-c

Metabolic & Performance

A mitochondria-derived peptide that regulates metabolic homeostasis. Acts as an exercise mimetic, improving insulin sensitivity and fat metabolism.

2174.6 Dat½: ~15 hoursExperimental

Humanin

Longevity / Anti-Aging

A mitochondria-derived peptide with cytoprotective effects. Protects against oxidative stress, apoptosis, and neurodegenerative processes. Declines with age.

2687.2 Dat½: ~30 minutes (HNG variant more stable)Preclinical

SS-31

Longevity / Anti-Aging

A mitochondria-targeted tetrapeptide that concentrates 1000x in the inner mitochondrial membrane. Restores bioenergetics and reduces oxidative damage.

640.8 Dat½: ~4 hoursPhase 3 Clinical Trials (Barth Syndrome)

Dihexa

Cognitive & Neuroprotective

An angiotensin IV analog reported to be 10 million times more potent than BDNF at promoting new synapse formation. Under investigation for cognitive disorders.

507.6 Dat½: ~12 hoursPreclinical

Bronchogen

Immune System

A short bioregulatory peptide targeting bronchial and lung tissue. Part of the Khavinson peptide bioregulators developed at the St. Petersburg Institute of Bioregulation.

333.3 Dat½: ~2-4 hoursAvailable in Russia (Khavinson peptides)

VIP

Immune System

A 28-amino acid neuropeptide with potent anti-inflammatory, immunomodulatory, and vasodilatory properties. Being studied for CIRS, pulmonary conditions, and autoimmune diseases.

3326.8 Dat½: ~1-2 minutes (rapid degradation)Investigational (multiple indications)

KPV

Immune System

A C-terminal tripeptide fragment of alpha-MSH with potent anti-inflammatory properties. Being studied for gut inflammation, IBD, and skin conditions.

342.4 Dat½: ~2-4 hoursExperimental

Thymalin

Immune System

A complex of polypeptides extracted from calf thymus glands. Used in Russia for immune restoration, particularly in immunodeficient states and cancer adjuvant therapy.

Variable (mixture)t½: ~3-4 hoursApproved in Russia

SNAP-8

Skin & Hair

An 8-amino acid peptide that reduces wrinkle depth by inhibiting SNARE complex formation, reducing neurotransmitter release at the neuromuscular junction. A 'topical Botox' concept.

1075.2 Dat½: Topical application (not injected)Cosmeceutical

GHK (without copper)

Longevity / Anti-Aging

The base tripeptide that can chelate copper. When copper-free, still shows gene-resetting properties, resetting ~4,000 genes toward a healthier expression pattern.

340.4 Dat½: ~2-4 hoursResearch compound / Cosmeceutical

FOXO4-DRI

Longevity / Anti-Aging

A senolytic peptide that selectively destroys senescent (zombie) cells by disrupting the FOXO4-p53 interaction that keeps them alive. The first peptide-based senolytic.

~4800 Dat½: ~24-48 hours (D-amino acid stability)Preclinical

Pentosan Polysulfate

Healing & Recovery

A semi-synthetic heparinoid compound used for interstitial cystitis and being studied for osteoarthritis. Provides glycosaminoglycan layer restoration and anti-inflammatory effects.

4000-6000 Da (average)t½: ~24 hoursFDA Approved (interstitial cystitis)