Evidence-Based Peptide Research
Comprehensive educational resource covering mechanisms of action, current research, potential benefits, and safety profiles for peptides.
Educational purposes only. Always consult a qualified healthcare provider before making decisions about your health. Learn about our approach →
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Most Researched
Peptides with the strongest human evidence base
PT-141
PT-141 (Bremelanotide) is an FDA-approved melanocortin receptor agonist used for hypoactive sexual desire disorder (HSDD) in premenopausal women. It is the only FDA-approved drug specifically for female sexual dysfunction and works through the central nervous system rather than vascular mechanisms.
Read full profile >SS-31
SS-31 (Elamipretide) is a synthetic mitochondria-targeted peptide that selectively concentrates in the inner mitochondrial membrane where it binds cardiolipin. It is studied for its ability to improve mitochondrial function, reduce oxidative stress, and protect against age-related and disease-driven mitochondrial dysfunction.
Read full profile >Thymosin Alpha-1
Thymosin Alpha-1 is a 28-amino acid peptide derived from thymosin fraction 5 of the thymus gland. It is an approved pharmaceutical drug in approximately 35 countries for hepatitis B, hepatitis C, and immune-compromised conditions, making it one of the few peptides with robust clinical validation for immune modulation.
Read full profile >Semax
Semax is a synthetic heptapeptide derived from ACTH (adrenocorticotropic hormone) developed in Russia. It is registered as a drug in Russia and Ukraine for cognitive enhancement, neuroprotection, and stroke treatment. It is studied for BDNF upregulation, memory enhancement, and anxiolytic effects.
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Explore Peptides by Category
Browse our research library organized by therapeutic area. Each profile includes mechanism of action, current research, and safety information.
Healing & Recovery
5Peptides that support tissue repair, gut healing, and injury recovery.
BPC-157
BPC-157 is a synthetic pentadecapeptide derived from a protective protein found in gastric juice. It has been extensively studied in animal models for its remarkable tissue-healing properties across multiple organ systems.
Read full profile >TB-500
TB-500 is a synthetic version of Thymosin Beta-4, a naturally occurring protein found in virtually all human and animal cells. It is studied for its role in actin regulation, wound healing, angiogenesis, and inflammation modulation.
Read full profile >KPV
KPV is a tripeptide derived from the C-terminal sequence of alpha-melanocyte-stimulating hormone (α-MSH). It is studied primarily for its potent anti-inflammatory and gut-healing properties, particularly in models of inflammatory bowel disease.
Read full profile >LL-37
LL-37 is the only human cathelicidin antimicrobial peptide, naturally produced by neutrophils, epithelial cells, and other immune cells. It plays dual roles in host defense (antimicrobial activity) and tissue healing, and is studied for wound repair, immunomodulation, and anti-biofilm properties.
Read full profile >BPC-157 + TB-500 Combination
The BPC-157 + TB-500 combination ("healing stack") pairs two of the most studied healing peptides with complementary mechanisms. BPC-157 promotes angiogenesis and tissue repair via VEGF/FAK pathways; TB-500 promotes cell migration and angiogenesis via actin regulation. Together they are studied for enhanced musculoskeletal healing and recovery.
Read full profile >Anti-Aging
3Peptides researched for longevity, cellular repair, and age-related decline.
Epithalon
Epithalon is a synthetic tetrapeptide (Ala-Glu-Asp-Gly) derived from the pineal gland peptide Epithalamin. It is one of the most studied peptides for longevity and anti-aging effects, primarily through its ability to activate telomerase and elongate telomeres.
Read full profile >GHK-Cu
GHK-Cu is a naturally occurring copper-binding tripeptide (Glycine-Histidine-Lysine) found in human plasma. It has been extensively studied for its roles in wound healing, skin regeneration, anti-aging effects, and gene expression modulation, with over 4,000 genes reportedly influenced by its activity.
Read full profile >SS-31
SS-31 (Elamipretide) is a synthetic mitochondria-targeted peptide that selectively concentrates in the inner mitochondrial membrane where it binds cardiolipin. It is studied for its ability to improve mitochondrial function, reduce oxidative stress, and protect against age-related and disease-driven mitochondrial dysfunction.
Read full profile >Cognitive Enhancement
3Peptides studied for neuroprotection, memory, and mental clarity.
Semax
Semax is a synthetic heptapeptide derived from ACTH (adrenocorticotropic hormone) developed in Russia. It is registered as a drug in Russia and Ukraine for cognitive enhancement, neuroprotection, and stroke treatment. It is studied for BDNF upregulation, memory enhancement, and anxiolytic effects.
Read full profile >Selank
Selank is a synthetic heptapeptide analog of the immunomodulatory peptide tuftsin, developed in Russia. It is registered as a drug in Russia for anxiety disorders and is studied for its anxiolytic, nootropic, and immunomodulatory properties with a favorable side effect profile.
Read full profile >Dihexa
Dihexa is a small molecule peptide analog derived from Angiotensin IV, developed at Washington State University. It is studied as an extraordinarily potent cognitive enhancer, reportedly seven orders of magnitude more potent than BDNF in facilitating synaptogenesis, with potential applications for neurodegenerative diseases.
Read full profile >Performance & Growth
3Peptides that support growth hormone release, recovery, and physical performance.
CJC-1295
CJC-1295 is a synthetic analog of growth hormone-releasing hormone (GHRH) modified with Drug Affinity Complex (DAC) technology to extend its half-life from minutes to days. It stimulates pituitary GH secretion and is studied for muscle growth, fat loss, and recovery.
Read full profile >Ipamorelin
Ipamorelin is a selective growth hormone secretagogue and ghrelin receptor agonist. It is one of the most selective GH-releasing peptides available, stimulating GH release without significant effects on cortisol or prolactin — making it a preferred choice in performance and anti-aging research protocols.
Read full profile >MK-677
MK-677 (Ibutamoren) is an orally active, non-peptide growth hormone secretagogue that mimics ghrelin and stimulates GH and IGF-1 release. Unlike injectable GH peptides, it is taken orally and provides sustained GH elevation. It is studied for muscle growth, bone density, and metabolic effects.
Read full profile >Immune Support
1Peptides that modulate and strengthen immune system function.
Weight Management
1Peptides researched for their effects on fat metabolism and body composition.
Sexual Health
1Peptides studied for their effects on sexual function and arousal.
Sleep
1Peptides researched for sleep quality and circadian rhythm support.