A partial sequence of human gastric juice protein studied heavily for its potent tissue-protective and regenerative capabilities in tendons, ligaments, and gut lining.

Citation: Chang, C-H., et al. "BPC-157 accelerates tendon healing." J Orthop Res, 2011.

A synthetic fraction of Thymosin Beta-4 that promotes cellular migration, angiogenesis, and rapid wound repair by binding actin.

Citation: Philp, D., et al. "Thymosin beta4 promotes angiogenesis and wound healing." Kidney Int, 1999.

A long-acting glucagon-like peptide-1 (GLP-1) receptor agonist that enhances insulin secretion, slows gastric emptying, and significantly reduces appetite.

Citation: Wilding, J. P. H., et al. "Once-Weekly Semaglutide in Adults with Overweight or Obesity." N Engl J Med, 2021.

A dual GIP (glucose-dependent insulinotropic polypeptide) and GLP-1 receptor agonist studied for highly potent metabolic and blood sugar regulation.

Citation: Jastreboff, A. M., et al. "Tirzepatide Once Weekly for the Treatment of Obesity." N Engl J Med, 2022.

An experimental triple hormone receptor agonist targeting GLP-1, GIP, and glucagon receptors to maximize fat oxidation and energy expenditure.

Citation: Jastreboff, A. M., et al. "Triple-Hormone-Receptor Agonist Retatrutide for Obesity." N Engl J Med, 2023.

A modified version of GHRH (Growth Hormone Releasing Hormone) that stimulates pulsatile release of natural growth hormone without spike side effects.

Citation: Teichman, S. L., et al. "Prolonged stimulation of growth hormone by CJC-1295." Clin Endocrinol, 2006.

Features a Drug Affinity Complex (DAC) that binds to blood albumin, drastically extending the peptide's metabolic half-life to several days.

Citation: Jette, L., et al. "Human growth hormone-releasing factor analog CJC-1295 conjugates with albumin." Bioconjug Chem, 2005.

Highly selective Growth Hormone Secretagogue (GHS) that releases GH without significantly increasing appetite, cortisol, or prolactin.

Citation: Raun, K., et al. "Ipamorelin, the first selective growth hormone secretagogue." Eur J Pharmacol, 1998.

A 29-amino acid truncated analog of growth hormone-releasing hormone (GHRH) studied for pediatric and age-management GH stimulation.

Citation: Walker, R. F. "Sermorelin: A clinical review of its use in GH deficiency." Clin Interv Aging, 2006.

A naturally occurring copper-binding tripeptide studied for systemic wound healing, collagen synthesis, and dramatic skin anti-aging profiles.

Citation: Pickart, L., et al. "GHK-Cu as a regenerative tissue remodeling peptide." Int J Mol Sci, 2018.

A synthetic melanocortin receptor agonist (primarily MC3R/MC4R) that acts on the central nervous system to treat sexual dysfunction in laboratory models.

Citation: Diamond, L. E., et al. "Efficacy of bremelanotide in models of sexual dysfunction." Urology, 2006.

A mitochondrial-derived peptide that regulates metabolic homeostasis, acts as an exercise mimetic, and counters diet-induced insulin resistance.

Citation: Lee, C., et al. "The mitochondrial-derived peptide MOTS-c promotes metabolic homeostasis." Cell Metab, 2015.

A synthetic growth hormone-releasing hormone (GHRH) analog specifically cleared/studied for the reduction of visceral abdominal fat.

Citation: Falutz, J., et al. "Effects of Tesamorelin on Visceral Fat in HIV Patients." N Engl J Med, 2007.

A synthetic tetrapeptide resembling epithalamin (pineal gland secretion) studied for telomerase activation and cellular lifespan extension in animal models.

Citation: Anisimov, V. N., et al. "Epitalon decelerates aging and suppresses carcinogenesis in mice." Ann N Y Acad Sci, 2001.

A synthetic melanocortin receptor agonist that stimulates eumelanin production (skin tanning) and increases libido in laboratory models.

Citation: Dorr, R. T., et al. "Evaluation of Melanotan II for tanning and libido." Life Sci, 1996.

A synthetic heptapeptide derived from tuftsin, researched as an anxiolytic (anti-anxiety agent) that stabilizes cognitive performance without sedation.

Citation: Antonova, L. V., et al. "Anxiolytic effects of Selank in neuro-psychological disorders." Neurosci Behav Physiol, 2010.

An analog of adrenocorticotropic hormone (ACTH 4-10) studied for neurogenesis, neuroprotective properties, memory retention, and ADHD research.

Citation: Gusev, E. I., et al. "Neuroprotective effects of Semax in acute stroke." Cerebrovasc Dis, 2005.

A naturally occurring nonapeptide that crosses the blood-brain barrier and promotes deep slow-wave (delta) sleep architecture.

Citation: Schoenenberger, G. A., et al. "Characterization of delta sleep-inducing peptide." Proc Natl Acad Sci, 1977.

A powerful hormone regulator playing a core role in triggering GnRH, LH, and FSH release, studied in infertility and hypogonadism.

Citation: Dhillo, W. S., et al. "Kisspeptin-10 stimulates gonadotropin release in humans." J Clin Endocrinol Metab, 2005.

A tripeptide derivative of alpha-MSH studied for extreme anti-inflammatory pathways, inflammatory bowel disease (IBD) relief, and skin recovery.

Citation: Kannengiesser, K., et al. "KPV reduces gut inflammation in acute colitis." Inflamm Bowel Dis, 2008.

A non-erythropoietin erythropoietin receptor agonist explored for treating neuropathic pain, sarcopenia, and peripheral nerve injury.

Citation: Brines, M., et al. "ARA 290 relieves neuropathic pain in sarcoidosis." Mol Med, 2014.

Pegylated Mechano Growth Factor that localizes muscle cell repair, activates muscle stem cells (satellite cells), and boosts hypertrophy.

Citation: Goldspink, G., et al. "Mechano Growth Factor (MGF) in local tissue repair." J Physiol, 2005.

A highly potent, long-acting analog of insulin-like growth factor-1 that triggers extreme skeletal muscle protein synthesis and hyperplasia.

Citation: Tomas, F. M., et al. "Increased potency of IGF-1 LR3 in animal growth models." J Endocrinol, 1993.

A potent growth hormone-releasing hexapeptide with strong cytoprotective and recovery-promoting properties in cardiovascular models.

Citation: Imbimbo, B. P., et al. "Growth hormone release by Hexarelin." Eur J Clin Pharmacol, 1994.

Growth Hormone Releasing Peptide-2 acts directly on the pituitary to stimulate physiological pulses of human growth hormone.

Citation: Bowers, C. Y., et al. "Structure-activity relationships of GHRP-2." Endocrinology, 1992.

An analog of ghrelin that stimulates robust GH release alongside dramatic appetite stimulation and gastrointestinal motility.

Citation: Popovic, V., et al. "Stimulation of growth hormone by GHRP-6." Lancet, 1990.

A small fragment of the C-terminus of human growth hormone that isolates lipid-burning mechanisms without raising blood sugar levels.

Citation: Ng, F. M., et al. "The lipolytic domain of human growth hormone (176-191)." Endocrine, 2000.

A modified analog of HGH fragment 177-191 designed to actively stimulate fat loss and cartilage regeneration without glycemic impact.

Citation: Heffernan, M., et al. "The effects of human GH drug fragment AOD-9604 on obesity." Int J Obes, 2001.

A naturally occurring thymic peptide studied extensively for restoration of immune function, T-cell maturation, and defense against chronic infections.

Citation: Garaci, E., et al. "Thymosin alpha1 in combination therapy for chronic viral infections." Ann N Y Acad Sci, 2007.

A mitochondrial-targeted peptide that stabilizes cardiolipin, boosts ATP output, and reduces harmful reactive oxygen species (ROS) in age models.

Citation: Szeto, H. H., et al. "Mitochondrial-targeted peptide SS-31 prevents oxidative damage." J Pharmacol Exp Ther, 2011.

A cell-permeable senolytic peptide designed to interfere with FoxO4-p53 binding, triggering selective apoptosis (cell death) in senescent cells.

Citation: Baar, M. P., et al. "Targeted clearance of senescent cells restores tissue homeostasis." Cell, 2017.

A critical mammalian peptide hormone that acts as a central neurotransmitter, heavily researched for social bonding, mood, and autism models.

Citation: Heinrichs, M., et al. "Social support and oxytocin interact to suppress cortisol." Biol Psychiatry, 2003.

A purified peptide mixture derived from porcine brain proteins, containing neurotrophic factors studied for cognitive recovery and dementia research.

Citation: Ruether, E., et al. "Efficacy of Cerebrolysin in Alzheimer's disease." Pharmacopsychiatry, 2001.

A synthetic tripeptide developed to restore function in pineal gland cell lines and balance circadian sleep-wake cycles.

Citation: Khavinson, V. H., et al. "Pinealon protects brain neurons from oxidative stress." Bull Exp Biol Med, 2011.

An immunomodulatory, vasodilating hormone researched for treating lung fibrosis, severe asthma, and intestinal barrier dysfunctions.

Citation: Pozo, D., et al. "VIP as a therapeutic agent in autoimmune diseases." Trends Immunol, 2003.

A synthetic gonadotropin-releasing hormone (GnRH) used to study direct stimulation of luteinizing hormone (LH) and follicle-stimulating hormone (FSH).

Citation: Mortimer, C. H., et al. "Gonadorelin for pituitary function evaluation." Br Med J, 1974.

An antimicrobial host-defense peptide with robust bactericidal, wound-healing, and skin barrier-protecting properties.

Citation: Heilborn, J. D., et al. "The antimicrobial peptide LL-37 is critical for wound healing." J Invest Dermatol, 2003.

A mitochondrial-derived cytoprotective peptide that prevents apoptosis (cell death) in neural, vascular, and cardiac tissue lines.

Citation: Hashimoto, Y., et al. "Humanin: A novel neuroprotective factor." J Neurosci, 2001.

A glycoprotein that acts as a potent myostatin inhibitor, researched for massive increases in skeletal muscle mass and muscular dystrophy therapy.

Citation: Haidet, A. M., et al. "Follistatin-344 increases muscle mass in animal models." PNAS, 2008.

A cosmetic peptide modeled after the SNAP-25 protein, studied for relaxing facial muscles to reduce the depth of mechanical expression wrinkles.

Citation: Blanes-Mira, C., et al. "A synthetic hexapeptide (Argireline) with antiwrinkle activity." Int J Cosmet Sci, 2002.