Health & Peptide Science

Peptide reference

Structured reference entries covering sequence, mechanism, pharmacokinetics, and handling for compounds commonly cited in preclinical work.

41 compounds

AOD-96041815.1 Da
Metabolic & Body Composition

Modified fragment of the C-terminal end of human growth hormone. Promotes lipolysis without the anabolic effects or impact on glucose of full GH.

Half-life: ~30 minOpen entry
BPC-1571419.5 Da
Recovery & Tissue Repair

15-amino acid peptide derived from gastric BPC binding protein. It accelerates the healing of tissues, tendons, and muscles.

Half-life: 4–6 hOpen entry
Cagrilintide3416.0 Da
Metabolic & Body Composition

Long-acting analog of amylin in advanced clinical development. In combination with semaglutide (CagriSema), it demonstrates up to 25% weight loss in clinical trials.

Half-life: ~7–8 daysOpen entry
Cerebrolysin
Cognitive & Neurological

A mixture of neurotrophic peptides derived from porcine brain. Approved in several countries for the research into Alzheimer's disease and stroke. It mimics the effects of NGF and BDNF.

Half-life: Variable due to composition.Open entry
CJC-12953647.1 Da
Growth Hormone Axis

A long-acting GHRH analog that elevates baseline levels of GH and IGF-1 for several days. Frequently combined with Ipamorelin for synergistic effects.

Half-life: 8–9 daysOpen entry
Dihexa604.8 Da
Cognitive & Neurological

Nootropic peptide considered millions of times more potent than BDNF for promoting neuronal synapse. Significantly enhances memory and learning in Alzheimer models.

Half-life: Persistent (weeks in tissue)Open entry
DSIP848.9 Da
Cognitive & Neurological

Neuropeptide that induces delta sleep (deep slow-wave sleep). It enhances sleep quality, reduces stress, and possesses analgesic and antidepressant properties.

Half-life: ~30–40 minutesOpen entry
Epithalon390.3 Da
Longevity & Cellular Health

Tetrapeptide derived from the pineal gland with potent effects in cellular longevity models. It activates telomerase to elongate telomeres and restore immune and neuroendocrine function.

Half-life: ~30 minutesOpen entry
Follistatin 34437800 Da
Anabolic & Growth Factors

Myostatin antagonist protein that suppresses its activity, releasing the biological brake on muscle growth. Associated with dramatic gains in muscle mass.

Half-life: ~30–60 minutesOpen entry
GDF-1125000 Da
Longevity & Cellular Health

Growth differentiation factor with systemic rejuvenation effects. Involved in the reversal of cardiac and cerebral aging in parabiosis studies.

Half-life: ~30–60 minutesOpen entry
GHK-Cu340.4 Da
Longevity & Cellular Health

Natural tripeptide with copper ion that possesses powerful skin regenerative properties, DNA repair capabilities, and effects in cellular longevity models. It stimulates the synthesis of collagen and elastin.

Half-life: 1–2 hOpen entry
GHRP-2817.9 Da
Growth Hormone Axis

Second-generation GH Secretagogue with a potent stimulating effect on the pituitary. Significantly elevates cortisol and prolactin in addition to GH.

Half-life: ~15–60 minutesOpen entry
GHRP-6873.0 Da
Growth Hormone Axis

One of the first synthetic GH secretagogues. It strongly stimulates appetite and GH release, with widespread use in bodybuilding and recovery.

Half-life: ~15–60 minutesOpen entry
GLP-1 (7-37)3298.7 Da
Metabolic & Body Composition

Endogenous incretin that regulates postprandial glucose and satiety. The molecular basis of drugs such as semaglutide and liraglutide, which have a very short half-life in their native form.

Half-life: ~2 minutes (native)Open entry
Gonadorelin1182.3 Da
Endocrine & Reproductive

Synthetic gonadotropin-releasing hormone. It stimulates the pituitary gland to release LH and FSH, maintaining testicular function during exogenous testosterone research models.

Half-life: ~2–10 minutesOpen entry
Hexarelin887.0 Da
Growth Hormone Axis

High-potency GH Secretagogue with additional cardioprotective effects. It is one of the most potent GHRPs in stimulating GH release.

Half-life: ~30–70 minutesOpen entry
HGH Fragment 176-1911817.1 Da
Metabolic & Body Composition

Stabilized fragment of the C-terminal end of human GH (amino acids 176–191). It promotes fat burning without raising glucose levels or inducing tissue growth.

Half-life: ~30 minutesOpen entry
Humanin2887.3 Da
Longevity & Cellular Health

Mitochondrial peptide of 21 amino acids with potent neuroprotective and effects in cellular longevity models. It protects against beta-amyloid-induced apoptosis and enhances insulin sensitivity.

Half-life: ~30–60 minutesOpen entry
IGF-1 LR39200 Da
Anabolic & Growth Factors

Long-acting variant of human IGF-1 with 13 additional amino acids at the N-terminal. A potent promoter of muscle growth with low affinity for IGF-binding proteins.

Half-life: ~20–30 hoursOpen entry
Ipamorelin711.9 Da
Growth Hormone Axis

Selective growth hormone secretagogue that stimulates the pituitary with minimal side effects. Considered one of the cleanest GHRPs available.

Half-life: ~2 hOpen entry
Kisspeptin-101302.5 Da
Endocrine & Reproductive

Neuropeptide that regulates the hypothalamic-pituitary-gonadal axis. It stimulates the release of GnRH and LH, promoting the production of testosterone and sex hormones.

Half-life: ~10–27 minutesOpen entry
KPV342.4 Da
Immune & Anti-inflammatory

Tripeptide derived from the C-terminal end of α-MSH. A potent intestinal anti-inflammatory agent with promising effects in IBD (inflammatory bowel disease).

Half-life: 2–4 h (est.)Open entry
LL-374494.1 Da
Immune & Anti-inflammatory

Human antimicrobial peptide with potent immunomodulatory properties. It combats bacterial, viral, and fungal infections, and modulates the inflammatory response.

Half-life: ~30 minutesOpen entry
Melanotan 21024.2 Da
Endocrine & Reproductive

Synthetic analog of the melanocyte-stimulating hormone (α-MSH). Promotes skin tanning, reduces appetite, and enhances sexual function.

Half-life: 2–3 hOpen entry
MGF2867.2 Da
Anabolic & Growth Factors

Isoform of IGF-1 produced locally in muscle in response to mechanical damage. It activates muscle satellite cells to promote repair and hypertrophy.

Half-life: ~30 minutesOpen entry
MOTS-c2174.5 Da
Longevity & Cellular Health

Mitochondrial peptide that regulates cellular energy metabolism. It enhances insulin sensitivity, increases exercise endurance, and activates longevity pathways.

Half-life: ~30–60 minutesOpen entry
NAD+663.4 Da
Longevity & Cellular Health

Fundamental coenzyme of cellular metabolism that decreases with age. Supplementation with NAD+ enhances mitochondrial function, activates sirtuins, and serves as a foundation for cellular longevity research.

Half-life: Minutes (plasma)Open entry
PE22-28830.0 Da
Cognitive & Neurological

Antidepressant peptide derived from the TREK-1 channel. It demonstrates rapid antidepressant effects (within hours) in preclinical models, with the potential to overcome the limitations of current antidepressants.

Half-life: ~1–2 hoursOpen entry
Pinealon417.4 Da
Cognitive & Neurological

Neuroprotective tripeptide derived from the pineal gland. Enhances memory, sleep, and has protective effects on the aging brain.

Half-life: ~30–60 minutesOpen entry
PT-1411025.2 Da
Endocrine & Reproductive

Melanocortin peptide approved by the FDA for female sexual dysfunction. It acts directly on the central nervous system to enhance sexual desire in both men and women.

Half-life: 2–3 hOpen entry
Retatrutide4769.5 Da
Metabolic & Body Composition

Triple agonist GIP/GLP-1/Glucagon, the most advanced in its class. In phase 2 trials, it achieved up to 24% weight loss, surpassing semaglutide and tirzepatide.

Half-life: ~6 daysOpen entry
Selank863.0 Da
Cognitive & Neurological

Synthetic anxiolytic peptide derived from tuftsin. It reduces anxiety and enhances cognitive function without the sedative or addictive effects associated with benzodiazepines.

Half-life: ~10–15 minOpen entry
Semaglutide4113.6 Da
Metabolic & Body Composition

Long-acting GLP-1 analog approved for type 2 diabetes and obesity. It induces significant weight loss by reducing appetite and delaying gastric emptying.

Half-life: ~7 daysOpen entry
Semax813.9 Da
Cognitive & Neurological

Neuroprotective peptide derived from ACTH. It enhances memory, concentration, and brain function, with well-documented antidepressant and neuroprotective effects.

Half-life: ~7 minutes (plasma); effects lasting 12 hours.Open entry
Sermorelin3357.9 Da
Growth Hormone Axis

Biologically active fragment of natural GHRH. It physiologically stimulates the pituitary gland to produce GH, with a very favorable safety profile.

Half-life: ~12 minOpen entry
SNAP-81075.2 Da
Longevity & Cellular Health

Octapeptide analog of the N-terminal end of SNAP-25 that inhibits the release of acetylcholine at the neuromuscular junction. Reduces expression wrinkles topically.

Half-life: N/A (topical use)Open entry
SS-31639.8 Da
Longevity & Cellular Health

Cardiolipin-targeted peptide that protects mitochondrial function. It reduces oxidative stress, enhances ATP production, and has protective effects in cardiovascular and renal diseases.

Half-life: ~2 hoursOpen entry
TB-5004963 Da
Recovery & Tissue Repair

Synthetic peptide derived from thymosin beta-4, a natural protein found in nearly all cells. A potent agent for muscle recovery and tissue repair.

Half-life: 60–90 minOpen entry
Tesamorelin5136.0 Da
Metabolic & Body Composition

FDA-approved GHRH analog for the reduction of visceral abdominal fat in clinical populations with HIV. Potent and effective for central fat reduction.

Half-life: ~30 minOpen entry
Thymosin Alpha-13108.4 Da
Immune & Anti-inflammatory

Thymic peptide approved in over 70 countries for chronic infections and cancer. It enhances the cellular immune response and modulates regulatory T cells.

Half-life: ~2 hoursOpen entry
Tirzepatide4813.5 Da
Metabolic & Body Composition

Dual agonist GIP/GLP-1 approved. It surpasses simple GLP-1s in weight loss efficacy, with up to 22% reduction in body weight in clinical studies.

Half-life: ~5 daysOpen entry

This material is published for scientific and educational reference. It is not medical advice, not a treatment recommendation, and not an offer to sell. Compounds discussed are for research and laboratory use only.