CalcMyPeptide
matter48 research peptides

Peptide Reference Library

CalcMyPeptide's Peptide Reference Library is a peer-reviewed clinical compendium covering the molecular weight, elimination half-life, dose range, and reconstitution parameters for 25+ research peptides — including BPC-157, semaglutide, tirzepatide, retatrutide, ipamorelin, and TB-500 — with primary literature citations for each entry.

Last updated: March 2026

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expand_moreAOD-9604
Fat Loss

Mimics the fat-burning region of hGH without anabolic effects; stimulates lipolysis in adipocytes.

expand_moreBPC-157
Recovery

Upregulates growth factor expression (VEGF, FGF), promotes angiogenesis and tendon-to-bone healing.

expand_moreCerebrolysin
Cognitive

Contains neurotrophic factors (BDNF, CNTF, GDNF analogs) that promote neurogenesis, synaptogenesis, and neuronal survival.

Secretagogue

Binds GHRH receptors to stimulate natural pulsatile GH secretion without desensitization.

Secretagogue

Binds to GHRH receptors on pituitary somatotrophs, stimulating pulsatile GH release.

expand_moreDihexa
Cognitive

Binds hepatocyte growth factor (HGF) receptor to promote spinogenesis and synaptogenesis.

expand_moreDSIP
Sleep

Crosses blood-brain barrier; induces delta-wave sleep, modulates HPA axis.

expand_moreEpitalon
Longevity

Activates telomerase in somatic cells, potentially extending Hayflick limit.

expand_moreFollistatin 344
Recovery

Binds and neutralizes myostatin (GDF-8) and activins, removing the natural "brake" on muscle growth. Also modulates FSH levels.

expand_moreFOXO4-DRI
Longevity

Disrupts FOXO4-p53 interaction in senescent cells, releasing p53 to trigger apoptosis. The D-retro-inverso structure provides protease resistance.

expand_moreGHK-Cu
Skin & Hair

Stimulates collagen synthesis, glycosaminoglycans, and decorin; promotes wound repair and anti-inflammatory effects.

expand_moreGHRP-2
Secretagogue

Ghrelin receptor agonist; more potent GH release vs GHRP-6 with moderate cortisol/prolactin increase.

expand_moreGHRP-6
Secretagogue

Ghrelin mimetic activating GHS-R1a receptor on pituitary somatotrophs.

expand_moreGLOW Stack

GHK-Cu stimulates collagen/elastin synthesis via decorin upregulation; BPC-157 promotes VEGF-driven angiogenesis and fibroblast migration; TB-500 (Thymosin Beta-4 fragment) promotes actin polymerization and systemic cell migration for diffuse tissue repair.

expand_moreGlutathione
Longevity

Neutralizes reactive oxygen species (ROS), regenerates vitamins C and E, conjugates toxins for excretion, supports T-cell proliferation.

expand_moreGonadorelin
Recovery

Pulsatile stimulation of anterior pituitary gland to release LH and FSH, maintaining gonadal function during exogenous hormone use.

expand_moreHexarelin
Secretagogue

Ghrelin receptor agonist; strongest GH release of GHRPs but desensitization occurs at ~4 weeks.

Fat Loss

Stimulates lipolysis and inhibits lipogenesis in adipocytes without affecting blood glucose or IGF-1 levels.

expand_moreHumanin
Longevity

Binds IGFBP-3 and BAX to inhibit apoptosis; activates STAT3 signaling; neuroprotective against beta-amyloid toxicity.

expand_moreIGF-1 LR3
Growth Factors

Activates IGF-1 receptors to promote muscle hypertrophy, cell proliferation, and protein synthesis. LR3 modification reduces IGFBP binding.

expand_moreIpamorelin
Secretagogue

Ghrelin receptor agonist with high selectivity for GH release.

expand_moreKisspeptin
Sexual Health

Activates GPR54 (KISS1R) receptor on hypothalamic GnRH neurons, triggering pulsatile GnRH release and downstream LH/FSH secretion.

expand_moreKLOW Stack

All GLOW mechanisms plus: KPV blocks NF-κB signaling to suppress TNF-α, IL-6, IL-1β production, creating an anti-inflammatory environment that maximizes BPC-157 and TB-500 tissue repair activity.

expand_moreKPV
Recovery

Inhibits NF-κB signaling pathway, reducing pro-inflammatory cytokine production (TNF-α, IL-6, IL-1β). Effective systemically, topically, and orally.

expand_moreLL-37
Recovery

Disrupts bacterial membranes; modulates immune response via TLR signaling and chemotaxis.

expand_moreMelanotan II
Skin & Hair

Activates MC1R (melanocyte stimulation), MC3R/MC4R (sexual arousal, appetite).

expand_moreMGF
Recovery

Activates muscle satellite cells at the injury site; extremely short half-life requires local injection for targeted repair.

expand_moreMK-677
Secretagogue

Oral ghrelin receptor agonist; raises GH/IGF-1 without suppressing natural secretion.

expand_moreMOTS-c
Mitochondrial

Activates AMPK pathway; regulates mitochondrial metabolism and glucose uptake.

expand_moreNAD+
Longevity

Serves as electron carrier in mitochondrial electron transport chain; activates sirtuins (SIRT1-7) for DNA repair and gene silencing; substrate for PARPs.

expand_moreOxytocin
Sexual Health

Binds oxytocin receptors in brain and peripheral tissues; modulates social behavior, anxiety, and stress response via hypothalamic-pituitary axis.

expand_morePEG-MGF
Recovery

Activates satellite cells for muscle repair; PEG modification extends systemic half-life from minutes to days.

expand_morePinealon
Cognitive

Penetrates nuclear membrane and binds DNA, regulating gene expression in neuronal cells. Promotes neuroprotection, reduces oxidative stress in brain tissue, and normalizes pineal gland melatonin production.

expand_morePT-141
Sexual Health

Activates melanocortin-4 receptors in the CNS to enhance sexual arousal.

expand_moreRetatrutide
GLP-1

Activates GLP-1, GIP, and glucagon receptors simultaneously for superior metabolic effects.

expand_moreSelank
Cognitive

Modulates GABA, serotonin, dopamine, and norepinephrine systems; enhances BDNF expression.

expand_moreSemaglutide
GLP-1

Mimics incretin GLP-1, stimulates insulin secretion, suppresses glucagon, slows gastric emptying, reduces appetite.

expand_moreSemax
Cognitive

Increases BDNF/NGF, modulates serotonergic system; neuroprotective against oxidative stress.

expand_moreSermorelin
Secretagogue

Stimulates pituitary somatotrophs to release GH in a pulsatile, physiological pattern. Does not suppress endogenous GH production.

Secretagogue

Synergistic GH release: GHRH analog (Sermorelin) amplifies pulse amplitude at pituitary, while GHRP (Ipamorelin) initiates pulse via ghrelin receptor. Combined output exceeds either alone by 2-5×.

expand_moreSS-31
Mitochondrial

Binds cardiolipin on inner mitochondrial membrane, stabilizing electron transport chain.

expand_moreTB-500
Recovery

Promotes actin polymerization, cell migration, and new blood vessel formation.

expand_moreTesamorelin
Secretagogue

Synthetic GHRH(1-44) that stimulates pulsatile GH release from pituitary.

expand_moreThymalin
Longevity

Restores thymic function and T-cell differentiation in aging immune systems; modulates cytokine production and immune homeostasis.

expand_moreThymosin Alpha-1
Recovery

Activates toll-like receptors, enhances dendritic cell function, stimulates T-cell maturation and NK cell activity.

expand_moreTirzepatide
GLP-1

Dual incretin agonist activating both GIP and GLP-1 receptors for enhanced glycemic control and weight loss.

expand_moreTriptorelin
Recovery

Initial GnRH receptor stimulation causes LH/FSH surge; single low-dose use (100 mcg) can restart HPTA axis after suppression.

expand_moreVIP
Recovery

Modulates immune response via VPAC1/VPAC2 receptors; reduces pulmonary inflammation; neuroprotective and vasodilatory.

Showing 48 of 48 research peptides.