Peptide Database
A verified index of sequences, half-lives, and molecular weights curated for the research community.
BPC-157
Preclinical / ExperimentalHealing & Recovery
A 15-amino acid peptide derived from human gastric juice. Studied for tissue repair, wound healing, tendon/ligament recovery, and gut protection.
Molecular Weight
1419.5 Da
Half-Life
~4 hours (stable in gastric juice)
TB-500
Preclinical / ExperimentalHealing & Recovery
A synthetic version of Thymosin Beta-4, a naturally occurring peptide involved in tissue repair, cell migration, and anti-inflammation.
Molecular Weight
4963.5 Da
Half-Life
~12-15 days
Semaglutide
FDA ApprovedGLP-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.
Molecular Weight
4113.6 Da
Half-Life
~7 days
Tirzepatide
FDA ApprovedGLP-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.
Molecular Weight
4813.5 Da
Half-Life
~5 days
CJC-1295
ExperimentalGrowth Hormone Peptides
A synthetic analog of growth hormone-releasing hormone (GHRH). Available with or without Drug Affinity Complex (DAC) which extends half-life.
Molecular Weight
3367.9 Da (no DAC) / 3647.3 Da (with DAC)
Half-Life
30 min (no DAC) / 6-8 days (with DAC)
Ipamorelin
ExperimentalGrowth Hormone Peptides
A selective growth hormone secretagogue (GHS) that stimulates GH release without significantly affecting cortisol, prolactin, or ACTH.
Molecular Weight
711.9 Da
Half-Life
~2 hours
GHK-Cu
Research compound / CosmeceuticalSkin & 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.
Molecular Weight
403.9 Da
Half-Life
~12 hours (topical), ~1 hour (injected)
Epithalon
ExperimentalLongevity / Anti-Aging
A synthetic tetrapeptide studied for anti-aging properties through telomerase activation and pineal gland function regulation.
Molecular Weight
390.3 Da
Half-Life
~2-3 hours
Selank
Approved in RussiaCognitive & Neuroprotective
A synthetic analog of tuftsin with anxiolytic and nootropic properties. Used for anxiety, cognitive enhancement, and immune modulation.
Molecular Weight
751.9 Da
Half-Life
~2-3 minutes (rapid action, effects last hours)
Semax
Approved in Russia/UkraineCognitive & Neuroprotective
A synthetic analog of ACTH(4-7) with neuroprotective and cognitive-enhancing properties. Used for stroke recovery and cognitive disorders.
Molecular Weight
813.9 Da
Half-Life
~3-5 minutes (effects last hours)
PT-141
FDA ApprovedSexual Health
A melanocortin receptor agonist FDA-approved for hypoactive sexual desire disorder. Works on the central nervous system rather than the vascular system.
Molecular Weight
1025.2 Da
Half-Life
~2.7 hours
Melanotan II
FDA ApprovedSkin & Hair
A synthetic melanocortin peptide analog that stimulates melanogenesis (tanning) and has secondary effects on sexual function and appetite.
Molecular Weight
1024.2 Da
Half-Life
~33 minutes (effects last days)
AOD-9604
TGA Approved (Australia, oral)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.
Molecular Weight
1815.1 Da
Half-Life
~6-8 hours
DSIP
ExperimentalCognitive & Neuroprotective
A neuropeptide that promotes delta-wave sleep and has stress-protective, analgesic, and endocrine-modulating properties.
Molecular Weight
848.8 Da
Half-Life
~7-8 minutes (effects last hours)
LL-37
ExperimentalImmune System
A human cathelicidin antimicrobial peptide with broad-spectrum activity against bacteria, viruses, and fungi. Also modulates immune response.
Molecular Weight
4493.3 Da
Half-Life
~4-6 hours
Sermorelin
FDA ApprovedGrowth 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.
Molecular Weight
3357.9 Da
Half-Life
~10-20 minutes
Thymulin
ExperimentalImmune System
A thymic hormone essential for T-cell differentiation and immune regulation. Declines significantly with age as thymus involutes.
Molecular Weight
847.9 Da (with zinc)
Half-Life
~1-2 hours
Retatrutide
Phase 3 Clinical TrialsGLP-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.
Molecular Weight
~4700 Da
Half-Life
~6 days
Cagrilintide
Phase 3 Clinical TrialsGLP-1 / Weight Loss
A long-acting amylin analog being developed in combination with semaglutide (CagriSema) for obesity and type 2 diabetes treatment.
Molecular Weight
~3950 Da
Half-Life
~7 days
Tesamorelin
FDA ApprovedGrowth Hormone Peptides
A synthetic GHRH analog FDA-approved for reducing excess abdominal fat in HIV-associated lipodystrophy. Also studied for cognitive benefits and NAFLD.
Molecular Weight
5135.9 Da
Half-Life
~26 minutes (but sustained GH elevation)
GHRP-6
ExperimentalGrowth Hormone Peptides
A first-generation growth hormone secretagogue that stimulates GH release via the ghrelin receptor. Known for strongly increasing appetite.
Molecular Weight
873.0 Da
Half-Life
~15-60 minutes
GHRP-2
Approved in Japan (diagnostic use)Growth Hormone Peptides
A second-generation growth hormone secretagogue with the strongest GH release of the GHRP family. Less appetite stimulation than GHRP-6.
Molecular Weight
817.9 Da
Half-Life
~15-60 minutes
Hexarelin
ExperimentalGrowth Hormone Peptides
The most potent GHRP for acute GH release but subject to desensitization with chronic use. Also has cardioprotective properties independent of GH.
Molecular Weight
887.0 Da
Half-Life
~70 minutes
MK-677
Investigational (Phase 2 completed)Growth Hormone Peptides
An orally active, non-peptide growth hormone secretagogue. Mimics ghrelin to stimulate sustained GH and IGF-1 elevation over 24 hours.
Molecular Weight
528.7 Da
Half-Life
~24 hours
Kisspeptin-10
InvestigationalSexual Health
A hypothalamic neuropeptide that stimulates GnRH release, triggering LH and FSH secretion. Being studied for reproductive medicine and as a diagnostic tool.
Molecular Weight
1302.5 Da
Half-Life
~28 minutes
Gonadorelin
FDA ApprovedSexual Health
Synthetic gonadotropin-releasing hormone identical to endogenous GnRH. Used diagnostically and to maintain fertility during testosterone therapy.
Molecular Weight
1182.3 Da
Half-Life
~2-4 minutes
NAD+
Supplement / Research compoundLongevity / Anti-Aging
A critical coenzyme found in every cell, involved in energy metabolism, DNA repair, and sirtuin activation. Declines significantly with age.
Molecular Weight
663.4 Da
Half-Life
~1-4 hours (IV), variable (oral precursors)
MOTS-c
ExperimentalMetabolic & Performance
A mitochondria-derived peptide that regulates metabolic homeostasis. Acts as an exercise mimetic, improving insulin sensitivity and fat metabolism.
Molecular Weight
2174.6 Da
Half-Life
~15 hours
Humanin
PreclinicalLongevity / Anti-Aging
A mitochondria-derived peptide with cytoprotective effects. Protects against oxidative stress, apoptosis, and neurodegenerative processes. Declines with age.
Molecular Weight
2687.2 Da
Half-Life
~30 minutes (HNG variant more stable)
SS-31
Phase 3 Clinical Trials (Barth Syndrome)Longevity / Anti-Aging
A mitochondria-targeted tetrapeptide that concentrates 1000x in the inner mitochondrial membrane. Restores bioenergetics and reduces oxidative damage.
Molecular Weight
640.8 Da
Half-Life
~4 hours
Dihexa
PreclinicalCognitive & 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.
Molecular Weight
507.6 Da
Half-Life
~12 hours
Bronchogen
Available in Russia (Khavinson peptides)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.
Molecular Weight
333.3 Da
Half-Life
~2-4 hours
VIP
Investigational (multiple indications)Immune System
A 28-amino acid neuropeptide with potent anti-inflammatory, immunomodulatory, and vasodilatory properties. Being studied for CIRS, pulmonary conditions, and autoimmune diseases.
Molecular Weight
3326.8 Da
Half-Life
~1-2 minutes (rapid degradation)
KPV
ExperimentalImmune System
A C-terminal tripeptide fragment of alpha-MSH with potent anti-inflammatory properties. Being studied for gut inflammation, IBD, and skin conditions.
Molecular Weight
342.4 Da
Half-Life
~2-4 hours
Thymalin
Approved in RussiaImmune System
A complex of polypeptides extracted from calf thymus glands. Used in Russia for immune restoration, particularly in immunodeficient states and cancer adjuvant therapy.
Molecular Weight
Variable (mixture)
Half-Life
~3-4 hours
SNAP-8
CosmeceuticalSkin & 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.
Molecular Weight
1075.2 Da
Half-Life
Topical application (not injected)
GHK (without copper)
Research compound / CosmeceuticalLongevity / 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.
Molecular Weight
340.4 Da
Half-Life
~2-4 hours
FOXO4-DRI
PreclinicalLongevity / 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.
Molecular Weight
~4800 Da
Half-Life
~24-48 hours (D-amino acid stability)
Pentosan Polysulfate
FDA ApprovedHealing & Recovery
A semi-synthetic heparinoid compound used for interstitial cystitis and being studied for osteoarthritis. Provides glycosaminoglycan layer restoration and anti-inflammatory effects.
Molecular Weight
4000-6000 Da (average)
Half-Life
~24 hours