Peptide Directory
Explore all 73 peptides with evidence ratings, safety profiles, and research-backed content.
73 peptides found
BPC-157
Gastric Peptide
A synthetic peptide derived from a protective protein found in gastric juice, widely discussed for tissue repair and recovery.
Semaglutide
GLP-1 Receptor Agonist
A GLP-1 receptor agonist FDA-approved for type 2 diabetes and chronic weight management, one of the most widely prescribed peptide drugs.
Tirzepatide
Dual GIP/GLP-1 Receptor Agonist
A dual GIP/GLP-1 receptor agonist FDA-approved for diabetes and weight management, producing the largest weight loss seen in clinical trials.
CJC-1295
GHRH Analog
A growth hormone-releasing hormone analog that stimulates the pituitary gland to produce more growth hormone.
Ipamorelin
Growth Hormone Secretagogue
A selective growth hormone secretagogue that stimulates GH release without significantly affecting cortisol or prolactin.
NAD+ Precursors (NMN/NR)
Nucleotide/Vitamin B3 Derivative
Precursors to NAD+, a critical coenzyme for cellular energy and longevity pathways. NAD+ levels decline with age.
TB-500
Tissue Repair Peptide
A synthetic version of the active region of thymosin beta-4, widely used for tissue repair, wound healing, and recovery from injuries.
GHK-Cu
Copper Peptide
A naturally occurring copper-binding peptide with extensive research on skin remodeling, wound healing, and anti-aging.
Retatrutide
Triple GIP/GLP-1/Glucagon Receptor Agonist
An investigational triple agonist (GIP/GLP-1/glucagon) that produced 24% weight loss in Phase II trials, potentially the most effective obesity drug.
Oxytocin
Neuropeptide Hormone
A naturally occurring neuropeptide involved in social bonding, trust, and reproduction, FDA-approved for labor induction.
Glutathione
Tripeptide Antioxidant
The body's most abundant antioxidant, a tripeptide critical for detoxification, immune function, and cellular protection.
Semax
Nootropic Peptide
A synthetic peptide analog of ACTH(4-10) developed in Russia, studied for cognitive enhancement and neuroprotection.
Sermorelin
GHRH Analog
A growth hormone-releasing hormone analog that was previously FDA-approved for diagnosing GH deficiency in children.
MK-677
Growth Hormone Secretagogue
An orally active growth hormone secretagogue that mimics ghrelin to stimulate GH and IGF-1 release.
PT-141 (Bremelanotide)
Melanocortin Receptor Agonist
An FDA-approved melanocortin receptor agonist for hypoactive sexual desire disorder in premenopausal women, also studied for broader sexual dysfunction.
BPC-157 Arginate
Gastric Peptide
A stabilized form of BPC-157 combined with arginine, offering enhanced stability and potentially improved oral bioavailability.
CJC-1295 (no DAC)
GHRH Analog
A modified growth hormone releasing hormone analog with a shorter half-life than DAC-conjugated CJC-1295, allowing more physiological GH pulsing.
Liraglutide
GLP-1 Receptor Agonist
A GLP-1 receptor agonist FDA-approved for diabetes (Victoza) and weight management (Saxenda), the predecessor to semaglutide.
Follistatin
Activin-Binding Protein
A naturally occurring protein that inhibits myostatin (the muscle growth limiter), studied for dramatic muscle growth potential.
KPV
Anti-Inflammatory Tripeptide
A tripeptide fragment of alpha-MSH with potent anti-inflammatory properties, studied for inflammatory bowel disease and skin conditions.
Argireline
Cosmetic Peptide
A cosmetic peptide that reduces wrinkles by inhibiting neurotransmitter release at the neuromuscular junction, often called 'topical Botox.'
Matrixyl
Signal Peptide (Cosmetic)
A collagen-stimulating cosmetic peptide that signals skin to produce more collagen and extracellular matrix proteins.
Cagrilintide
Amylin Analogue
A long-acting amylin analogue being developed in combination with semaglutide (CagriSema) for enhanced weight loss.
Selank
Nootropic Peptide
A synthetic peptide analog of tuftsin with anxiolytic and nootropic properties, developed in Russia.
Tesamorelin
GHRH Analog
An FDA-approved GHRH analog used to reduce visceral fat in HIV-associated lipodystrophy.
AOD-9604
GH Fragment
A modified fragment of human growth hormone studied specifically for fat metabolism without the growth-promoting effects of full GH.
FOXO4-DRI
Senolytic Peptide
A senolytic peptide designed to selectively clear senescent cells by disrupting the FOXO4-p53 interaction, studied for anti-aging applications.
Cerebrolysin
Neurotrophic Peptide Complex
A porcine brain-derived peptide preparation with neurotrophic properties, approved in several countries for stroke recovery and cognitive disorders.
GHR-2 (GHRP-2)
Growth Hormone Secretagogue
A synthetic growth hormone secretagogue that stimulates natural GH release, studied for body composition, recovery, and anti-aging.
Hexarelin
Growth Hormone Secretagogue
A potent growth hormone secretagogue peptide that also has cardioprotective properties independent of GH release.
IGF-1 LR3
Growth Factor Analogue
A modified version of IGF-1 with extended half-life and reduced IGF binding protein affinity, used for muscle growth.
N-Acetyl Selank Amidate
Nootropic Peptide
An enhanced version of Selank with improved stability, studied for anxiety reduction and cognitive enhancement.
Gonadorelin
Gonadotropin-Releasing Hormone
Synthetic gonadotropin-releasing hormone used diagnostically and therapeutically for reproductive hormone assessment and fertility.
Melanotan II
Melanocortin Agonist
A synthetic melanocortin peptide studied for tanning, sexual function, and appetite suppression. Not FDA-approved; the FDA has issued public warnings against its use.
Epithalon
Bioregulator Peptide
A synthetic tetrapeptide studied for its potential to activate telomerase and influence cellular aging.
Thymosin Alpha-1
Thymic Peptide
A thymic peptide approved in multiple countries for immune modulation, particularly in hepatitis and as a vaccine adjuvant.
Humanin
Mitochondrial-Derived Peptide
A mitochondria-derived peptide with cytoprotective properties, studied for neuroprotection, metabolic regulation, and anti-aging effects.
VIP
Neuropeptide
A naturally occurring neuropeptide with anti-inflammatory, neuroprotective, and immune-modulating properties. Early clinical data exists for pulmonary hypertension; other therapeutic uses remain under investigation.
GHRP-6
Growth Hormone Secretagogue
A synthetic growth hormone secretagogue known for potent GH release and significant appetite stimulation through ghrelin receptor activation.
Larazotide
Tight Junction Regulator
A synthetic peptide that regulates intestinal tight junctions, in clinical trials for celiac disease and studied for leaky gut conditions.
Exenatide
GLP-1 Receptor Agonist
The first GLP-1 receptor agonist, originally derived from Gila monster venom, FDA-approved for type 2 diabetes.
IGF-1 DES
Growth Factor Analogue
A truncated form of IGF-1 missing the first 3 amino acids, with 10x greater potency and very short half-life for localized effects.
MGF
Growth Factor Splice Variant
A splice variant of IGF-1 produced in response to mechanical stress on muscles, promoting satellite cell activation and muscle repair.
PEG-MGF
PEGylated Growth Factor
A PEGylated version of MGF with extended half-life for systemic muscle growth and recovery effects.
Teriparatide
Parathyroid Hormone Fragment
An FDA-approved fragment of parathyroid hormone that stimulates new bone formation, used for severe osteoporosis.
Orexin-A
Neuropeptide
A neuropeptide that regulates wakefulness, arousal, and appetite. Its deficiency causes narcolepsy.
P21
Neurotrophic Peptide
A CNTF-derived peptide that promotes neurogenesis and has shown promise in Alzheimer's disease research.
Leuprolide
GnRH Agonist
An FDA-approved GnRH agonist used for prostate cancer, endometriosis, and precocious puberty through hormonal suppression.
Glucagon
Peptide Hormone
A naturally occurring peptide hormone that raises blood sugar, FDA-approved as emergency treatment for severe hypoglycemia.
N-Acetyl Epithalon Amidate
Bioregulator Peptide
An enhanced version of Epithalon with improved stability, studied for telomerase activation, pineal gland regulation, and anti-aging effects.
LL-37
Antimicrobial Peptide
A naturally occurring antimicrobial peptide that plays a key role in innate immune defense.
Dihexa
Angiotensin Analog
A potent angiotensin IV analog studied for cognitive enhancement and potential treatment of neurodegenerative conditions.
DSIP
Neuropeptide
A naturally occurring neuropeptide that modulates sleep patterns and has been studied for insomnia and stress.
SNAP-8
Cosmetic Peptide
A cosmetic peptide that reduces the appearance of wrinkles by modulating neuromuscular junction signaling.
MOTS-c
Mitochondrial Peptide
A mitochondria-derived peptide that regulates metabolic homeostasis and has been called an 'exercise mimetic.'
Thymalin
Thymic Peptide
A thymic peptide complex studied for immune system restoration, particularly in aging populations and immunocompromised states.
PE-22-28
Neuroactive Peptide
A synthetic peptide derived from sortilin that acts as a TREK-1 channel blocker, studied as a rapid-acting antidepressant alternative.
Calcitonin (Salmon)
Peptide Hormone
An FDA-approved peptide hormone used to treat osteoporosis and Paget's disease by inhibiting bone resorption.
Desmopressin
Vasopressin Analogue
A synthetic analogue of vasopressin (ADH) FDA-approved for diabetes insipidus, bedwetting, and bleeding disorders.
Pramlintide
Amylin Analogue
An FDA-approved synthetic analogue of amylin used alongside insulin for diabetes, also studied for weight management.
Setmelanotide
Melanocortin-4 Receptor Agonist
An FDA-approved MC4R agonist for rare genetic obesity disorders, representing a precision medicine approach to weight management.
Octreotide
Somatostatin Analogue
An FDA-approved somatostatin analogue used to treat acromegaly, carcinoid tumors, and severe diarrhea.
Glatiramer Acetate
Immunomodulatory Peptide Mixture
An FDA-approved immunomodulatory peptide mixture for relapsing-remitting multiple sclerosis (MS).
Pentosan Polysulfate
Polysaccharide
A semi-synthetic polysaccharide with FDA approval for interstitial cystitis, also studied for joint and cartilage health.
NA-Semax-Amidate
Nootropic Peptide
A chemically modified version of Semax designed for improved stability. No published clinical or preclinical data exists for this specific compound.
Kisspeptin
Neuropeptide
A naturally occurring neuropeptide that plays a central role in reproductive hormone regulation and fertility.
SS-31
Mitochondrial Peptide
A mitochondria-targeted peptide in clinical trials for heart failure and mitochondrial diseases.
Pinealon
Bioregulator Peptide
A short tripeptide studied for neuroprotective and cognitive-enhancing properties, part of the Khavinson peptide bioregulator family.
Thymulin
Thymic Peptide
A zinc-dependent thymic peptide involved in T-cell maturation, studied for immune restoration and anti-inflammatory applications.
Cortagen
Bioregulator Peptide
A synthetic peptide bioregulator targeting brain cortex function, studied for cognitive enhancement and neuroprotection in aging.
Difelikefalin
Peripheral Kappa Opioid Agonist
An FDA-approved peripheral kappa opioid receptor agonist for chronic kidney disease-associated itch, without CNS side effects.
Teduglutide
GLP-2 Analogue
An FDA-approved GLP-2 analogue that promotes intestinal growth, used for short bowel syndrome.
Trofinetide
IGF-1 Tripeptide Analogue
The first FDA-approved treatment for Rett syndrome, a synthetic analogue of a naturally occurring IGF-1 tripeptide fragment.