Peptide Initiative Library
Peptide profiles
Comprehensive, research-backed profiles built to be a reliable source of truth — dosing protocols, safety data, key research, and practical usage information.
138 profiles · every claim cited
A9
AbarelixGnRH Antagonist for Advanced Prostate Cancer TreatmentHormone SupportStrong human trialsAcetyl Hexapeptide-3 (Argireline)SNARE complex inhibitor that reduces expression wrinkles through topical neuromuscular modulation — the 'Botox in a bottle' peptide.CosmeticLimited human trialsAdipotideA targeted fat-destroying peptide that works like a smart missile, cutting off blood supply to fat cells and causing rapid weight loss in primate studies.Weight ManagementStrong preclinicalAdrenomedullinA powerful vasodilatory peptide that relaxes blood vessels and helps your body maintain healthy fluid balance and blood pressure.Healing & RecoveryModerate human trialsAlexamorelinA next-generation growth hormone releaser that converts to hexarelin in your body for enhanced GH, cortisol, and unique aldosterone stimulation.Growth HormoneLimited human trialsAngiotensin (1-7)The heart-friendly peptide that balances your blood pressure and protects your cardiovascular systemHealing & RecoveryModerate human trialsAOD-9604A modified fragment of human growth hormone that targets fat cells for breakdown without affecting blood sugar or muscle growth—your metabolism's precision tool.Weight ManagementModerate human trialsApelin-13A natural heart hormone that helps your cardiovascular system work better and supports healthy blood flow throughout your body.Healing & RecoveryModerate human trialsARA-290 (Cibinetide)A peptide that awakens your body's natural repair system to heal damaged nerves and reduce painHealing & RecoveryModerate human trials
B3
Bestatin (Ubenimex)Natural dipeptide analogue aminopeptidase inhibitor with dual immunostimulatory and antitumor activity, approved in Japan as adjuvant cancer therapyImmuneModerate human trialsBPC-157The "Wolverine peptide" known for its remarkable healing properties across tendons, ligaments, muscles, and the gut.Healing & RecoveryStrong preclinicalBuserelinA synthetic GnRH agonist that suppresses hormones to help treat prostate cancer, endometriosis, and infertilityHormone SupportStrong human trials
C13
CagrilintideLong-acting amylin analog that supercharges satiety signals, delivering powerful appetite suppression and up to 10-15% weight loss with convenient once-weekly dosing.Weight ManagementStrong human trialsCapromorelinAn oral ghrelin agonist originally developed by Pfizer that stimulates growth hormone and appetite. FDA-approved for veterinary use (Entyce and Elura) and investigated in human trials for age-related muscle wasting and appetite support.Growth HormoneModerate human trialsCartalaxChondroprotective tripeptide bioregulator (Ala-Glu-Asp) that activates chondrogenic differentiation through SOX9/COL2A1/aggrecan upregulation, reverses senescence-associated secretory phenotype in aging chondrocytes, and provides geroprotective effects through SIRT-6 upregulation and p16/p21/p53 suppressionAnti-AgingModerate human trialsCathelicidin (hCAP-18 / Synthetic Derivatives)Human cationic antimicrobial protein-18 (hCAP-18) precursor and its synthetic derivative SAAP-148 — a next-generation 24-amino-acid cathelicidin-based peptide with broad-spectrum bactericidal activity against multidrug-resistant ESKAPE pathogens including MRSA biofilms, superior potency to its parent fragment LL-37, and retained efficacy under physiological salt and plasma conditionsImmuneModerate human trialsCerebrolysinPorcine brain-derived neuropeptide preparation containing bioactive peptide fragments of neurotrophic factors, used clinically in over 40 countries for stroke recovery, traumatic brain injury, and cognitive impairmentCognitiveModerate human trialsCerlutenBrain-derived peptide bioregulator complex containing AED, KED, AEDG, and KE peptides that promote neurogenesis through histone binding, restore dendritic spine architecture under neurotoxic conditions, and enhance cognitive recovery in stroke and brain injury patientsCognitiveLimited human trialsCetrorelixFast-acting GnRH antagonist that stops premature ovulation during IVF cyclesHormone SupportStrong human trialsChonlutenBronchopulmonary tripeptide bioregulator (Glu-Asp-Gly) that restores respiratory epithelial function through DNA minor groove binding at ATTTC sequences, induces TNF tolerance in alveolar macrophages reducing inflammatory cytokines by up to 6-fold, and normalizes bronchial mucosa differentiation markers in aging lung tissueImmuneLimited human trialsCJC-1295 (No DAC)A modified growth hormone-releasing hormone that boosts your body's natural GH pulses for better recovery, deeper sleep, and improved body composition.Growth HormoneModerate human trialsCJC-1295 with DACLong-acting growth hormone releaser that works around the clock to boost your body's natural GH production with just one or two injections per week.Growth HormoneModerate human trialsCopper Tripeptide-1 (GHK-Cu)Multi-functional copper peptide complex that stimulates collagen, enhances wound healing, and provides broad antioxidant protection for skin renewal.CosmeticLimited human trialsCortexinBovine cerebral cortex-derived polypeptide preparation with nootropic, neuroprotective, and antioxidant properties used clinically in Russia for cerebrovascular disorders, cognitive impairment, and pediatric neurologyCognitiveLimited human trialsCrystagenImmunogeroprotective tripeptide bioregulator (Glu-Asp-Pro) that optimally stimulates thymic epithelial cell proliferation at 200 ng/mL, suppresses thymocyte apoptosis through p53 downregulation and Ki-67 upregulation, and contributed to a 4.1-fold mortality reduction in a 266-person 6-8 year clinical study when combined with complementary pineal peptidesImmuneLimited human trials
D7
DaptomycinCyclic lipodepsipeptide antibiotic containing 13 amino acids and a decanoyl lipid tail from Streptomyces roseosporus — FDA-approved as Cubicin for complicated skin infections (2003) and S. aureus bacteremia including right-sided endocarditis (2006), operating through calcium-dependent phosphatidylglycerol-specific membrane depolarization with rapid bactericidal activity against MRSA, VRE, and other multidrug-resistant Gram-positive pathogensImmuneStrong human trialsDefensin (HBD-2)Inducible human beta-defensin antimicrobial peptide (41 amino acids) that kills bacteria through membrane disruption at MIC 50 μg/mL against S. aureus, recruits dendritic cells and T cells via CCR6 receptor chemotaxis, and serves as a critical bridge between innate and adaptive immunity — upregulated up to 100-fold during infection and inflammationImmuneModerate human trialsDefensin (HBD-3)Most potent human beta-defensin (45 amino acids) with unique salt-insensitive antimicrobial activity — kills MRSA at MIC 0.5-1.0 μg/mL regardless of salt concentration, disrupts biofilms at 4-8 μg/mL, and retains full bactericidal function even without its disulfide bonds — representing a next-generation antimicrobial peptide template for combating antibiotic resistanceImmuneModerate human trialsDegarelixFast-acting GnRH antagonist that rapidly lowers testosterone for advanced prostate cancer treatmentHormone SupportStrong human trialsDihexaAngiotensin IV-derived oligopeptide that potentiates hepatocyte growth factor to drive synaptogenesis and cognitive enhancement with extraordinary potencyCognitivePreclinical only — animal and cell-culture studies; no human trialsDSIP (Delta Sleep-Inducing Peptide)A naturally occurring brain peptide that helps you fall into deep, restorative sleep by gently nudging your body's own sleep-wake systems—without the groggy hangover of traditional sleep aids.Sleep & RecoveryLimited human trialsDulaglutideOnce-weekly GLP-1 receptor agonist Fc-fusion protein (Trulicity) that reduces HbA1c by 1.5–1.9%, promotes 3–4.6 kg weight loss, and demonstrated cardiovascular event reduction in the REWIND trial — available in convenient pre-filled autoinjector with no reconstitution requiredWeight ManagementStrong human trials
E3
EnalaprilThe blood pressure champion that helped millions breathe easier and live longerHealing & RecoveryStrong human trialsEpithalonA tiny but mighty four-amino-acid peptide that activates your body's telomerase enzyme—essentially helping your cells hit the 'reset' button on aging by protecting and lengthening the protective caps on your chromosomes.Anti-AgingLimited human trialsExenatideFirst-in-class GLP-1 receptor agonist derived from Gila monster venom (Byetta/Bydureon), FDA-approved for type 2 diabetes with demonstrated cardiovascular safety in the 14,752-patient EXSCEL trial and available in both twice-daily and once-weekly formulationsWeight ManagementStrong human trials
F2
FertirelinA potent GnRH analog designed to support reproductive function in veterinary and research settingsHormone SupportModerate human trialsFOXO4-DRIA senolytic peptide that clears aged "zombie" cells to support healthy aging — run in short, cycled courses a few times a year.Anti-AgingPreclinical only — animal and cell-culture studies; no human trials
G8
GanirelixFast-acting GnRH antagonist that stops premature ovulation during fertility treatmentHormone SupportStrong human trialsGHK-Cu (Copper Peptide)A naturally occurring copper peptide that acts like a master switch for your body's repair systems—boosting collagen production, accelerating wound healing, and helping your skin rebuild itself from the inside out.CosmeticStrong preclinicalGHRH (1-29)The shortest synthetic growth hormone-releasing peptide that tells your body to build taller and stronger.Growth HormoneStrong human trialsGHRP-2A potent growth hormone releasing peptide that signals your pituitary gland to release more GH naturally—think of it as turning up the volume on your body's own growth hormone production.Growth HormoneModerate human trialsGHRP-6 (Growth Hormone Releasing Peptide-6)A synthetic hexapeptide that signals your pituitary to release growth hormone through a unique pathway, with emerging evidence of heart-protective benefits.Growth HormoneLimited human trialsGlutathioneYour body's master antioxidant — a tiny three-part protein that shields your cells and helps clear out toxins.Anti-AgingModerate human trialsGonadorelin (GnRH)The master hormone that controls your reproductive system and fertilityHormone SupportModerate human trialsGramicidinHistoric 15-amino-acid linear pentadecapeptide antibiotic with alternating D- and L-amino acids — the first commercially produced antibiotic discovered by René Dubos in 1939, forming monovalent cation-selective transmembrane channels in bacterial membranes, FDA-approved as a topical/ophthalmic antimicrobial component of Neosporin and related preparationsImmuneStrong human trials
H3
HexarelinA powerful synthetic growth hormone secretagogue that tells your pituitary gland to release more growth hormone—plus it has remarkable heart-protective properties that make it stand out from other GH-boosting peptides.Growth HormoneModerate human trialsHuman Chorionic Gonadotropin (HCG)A powerful hormone that mimics luteinizing hormone (LH) to stimulate your body's natural testosterone production while keeping your fertility intact—like having your cake and eating it too for men on hormone therapy.Hormone SupportStrong human trialsHuman Growth Hormone (HGH)The master hormone that acts as your body's repair crew—building lean muscle, burning stubborn fat, strengthening bones, and helping you recover like you did in your younger years.Growth HormoneStrong human trials
I5
IGF-1 LR3A supercharged version of your body's own growth factor that stays active 2-3 times longer than regular IGF-1, making it a powerhouse for muscle growth, recovery, and cellular regeneration.Growth HormoneStrong preclinicalImmunoxel (Dzherelo)Ukrainian botanical immunomodulator that supercharges tuberculosis treatment and restores immune function in HIV patientsImmuneModerate human trialsImunofanSynthetic hexapeptide derived from thymopoietin with immunomodulatory, antioxidant, and hepatoprotective propertiesImmuneLimited human trialsIntermedin (Adrenomedullin-2)A powerful peptide hormone that protects your heart and blood vessels while managing stress and inflammation naturally.Healing & RecoveryLimited human trialsIpamorelinA uniquely selective growth hormone booster that tells your pituitary to release more GH without messing with your cortisol or other hormones—making it the 'clean' choice among growth hormone peptides.Growth HormoneModerate human trials
K2
Kisspeptin-10A powerful reproductive hormone regulator that acts like the master switch for your body's fertility system—triggering the release of hormones that control everything from ovulation to testosterone production.Sexual HealthModerate human trialsKPV (Alpha-MSH Fragment)Anti-inflammatory tripeptide from alpha-melanocyte-stimulating hormone targeting NF-κB and gut inflammationHealing & RecoveryStrong human trials
L10
Lactoferricin BA 25-amino-acid antimicrobial peptide fragment derived from bovine lactoferrin by pepsin cleavage, featuring a twisted antiparallel beta-sheet structure with broad-spectrum bactericidal activity, anti-biofilm properties, and emerging anticancer potential through selective membrane disruption mediated by the critical RRWQWR motifImmuneModerate human trialsLarazotideRestore your intestinal barrier and protect against gluten damageHealing & RecoveryStrong human trialsLentinanMushroom-derived β-glucan polysaccharide with potent immunomodulatory and antitumor properties approved for cancer therapy in JapanImmuneModerate human trialsLeuphasylEnkephalin-mimetic pentapeptide that reduces expression wrinkles through presynaptic neuromuscular inhibition, synergizing with Argireline.CosmeticLimited human trialsLeuphasylEnkephalin-mimetic cosmetic peptide that reduces expression wrinkles by modulating acetylcholine release at the neuromuscular junction, offering a Botox-like topical alternative.CosmeticModerate human trialsLeuprolideA powerful GnRH agonist that helps manage hormone-sensitive conditions by controlling hormone production.Hormone SupportStrong human trialsLiraglutideFDA-approved once-daily GLP-1 receptor agonist (Victoza/Saxenda) that reduces HbA1c by 0.9–1.6%, promotes 5–10% body weight loss, and demonstrated a 13% reduction in major adverse cardiovascular events in the landmark LEADER trial of 9,340 patientsWeight ManagementStrong human trialsLivagenTetrapeptide bioregulator (Lys-Glu-Asp-Ala) that directly penetrates cell nuclei and binds double-stranded DNA to induce chromatin decondensation in senescent lymphocytes, activate ribosomal genes, inhibit enkephalin-degrading enzymes with an IC50 of 20 μM, and restore protein synthesis capacity in aging cells through selective epigenetic remodelingAnti-AgingLimited human trialsLixisenatideShort-acting prandial GLP-1 receptor agonist for postprandial glucose controlWeight ManagementStrong human trialsLL-37Human cathelicidin-derived antimicrobial peptide (37 amino acids) that disrupts bacterial membranes at MIC 0.62 μM against S. aureus, neutralizes endotoxin (LPS) to prevent septic shock, and has reached Phase II clinical trials as Ropocamptide for wound healing — achieving 6-fold accelerated healing at 0.5 mg/mL in venous leg ulcersImmuneModerate human trials
M7
MacimorelinFDA-approved diagnostic test for adult growth hormone deficiencyGrowth HormoneStrong human trialsMagainin-2Amphipathic 23-amino-acid antimicrobial peptide from Xenopus laevis skin — the founding member of the magainin family discovered by Michael Zasloff at NIH in 1987, operating through the toroidal pore membrane disruption model with broad-spectrum activity against Gram-positive and Gram-negative bacteria, whose synthetic derivative Pexiganan (MSI-78) advanced to Phase III clinical trials for diabetic foot ulcersImmuneModerate human trialsMazdutideDual GLP-1/glucagon receptor agonist delivering up to 20% weight loss with superior glycemic control in clinical trials.Weight ManagementStrong human trialsMelanotan-2A powerful synthetic peptide that mimics your body's natural tanning hormone, giving you a deeper, longer-lasting tan with minimal sun exposure while also showing surprising benefits for libido and appetite.CosmeticLimited human trialsMK-677 (Ibutamoren)The oral growth hormone secretagogue that tricks your body into producing more GH — no needles required.Growth HormoneModerate human trialsMOTS-cA remarkable 16-amino-acid peptide encoded by your mitochondrial DNA that acts as an 'exercise mimetic'—boosting metabolism, improving insulin sensitivity, and helping your cells adapt to metabolic stress just like a good workout would.MetabolicStrong preclinicalMyristoyl Pentapeptide-17Keratin-stimulating lipopeptide specifically designed to enhance eyelash and eyebrow growth through hair follicle activation.CosmeticLimited human trials
N8
N-Acetyl SelankAcetylated tuftsin analogue heptapeptide with enhanced stability and anxiolytic, nootropic, and immunomodulatory properties acting through GABAergic modulation and BDNF upregulationCognitiveLimited human trialsN-Acetyl Semax AmidateDoubly modified ACTH(4-7) analogue heptapeptide with potent nootropic, neuroprotective, and neurotrophic properties acting through BDNF/NGF upregulation and transcriptome-level modulation of inflammatory and neurotransmitter gene networksCognitiveModerate human trialsNAD+Your cells' master energy currency and anti-aging powerhouse—NAD+ keeps your mitochondria humming, activates longevity genes called sirtuins, and helps repair DNA damage that accumulates as you get older.MitochondrialModerate human trialsNafarelinA potent GnRH agonist that initially stimulates then suppresses reproductive hormones, used for treating endometriosis and central precocious puberty with convenient nasal spray delivery.Hormone SupportStrong human trialsNatriuretic Peptide (ANP)Your heart's natural fluid and pressure regulator, helping restore balance when fluid overload strikes.Healing & RecoveryModerate human trialsNesiritide (BNP)Recombinant B-type natriuretic peptide that helps your heart breathe easier by reducing fluid overload and improving blood flow during acute heart failure crises.Healing & RecoveryStrong human trialsNisinFDA GRAS-approved lantibiotic (34 amino acids) produced by Lactococcus lactis with a dual antimicrobial mechanism — binds lipid II to block cell wall synthesis AND forms 2 nm transmembrane pores for rapid bacterial killing at MIC 0.5-4 μg/mL against gram-positive pathogens including MRSA and Listeria monocytogenes — the only antimicrobial peptide with over 50 years of documented safe human consumptionImmuneStrong human trialsNoopept (Omberacetam)Ultra-potent dipeptide nootropic and prodrug of cycloprolylglycine that enhances cognition through BDNF/NGF upregulation, AMPA receptor modulation, and multicomponent neuroprotection at doses 1000 times lower than piracetamCognitiveLimited human trials
O3
OrforglipronFirst oral non-peptide GLP-1 receptor agonist for diabetes and obesityWeight ManagementStrong human trialsOvagenHepatoprotective tripeptide bioregulator (Glu-Asp-Leu) that penetrates hepatocyte nuclei to bind DNA in the minor groove at AT-rich promoter regions, upregulates antioxidant enzymes (SOD, glutathione peroxidase, GST) beyond melatonin's capacity, and supports liver regeneration through epigenetic activation of hepatocyte proliferation and anti-fibrotic gene programsAnti-AgingLimited human trialsOxytocin AcetateOften called the 'love hormone' or 'bonding molecule,' oxytocin is a powerful nine-amino-acid peptide that helps build trust, deepen social connections, and calm your stress response—essentially your brain's natural way of creating warmth and connection.Hormone SupportModerate human trials
P18
P21 (P021)CNTF-derived neurotrophic tetrapeptide mimetic that promotes neurogenesis, enhances BDNF expression, and demonstrates disease-modifying potential in Alzheimer's modelsCognitiveStrong preclinicalPACAP-38Neuroprotective polypeptide with potent anti-inflammatory and cytoprotective properties discovered in 1989Healing & RecoveryStrong human trialsPalmitoyl OligopeptideElastin-derived signal peptide that stimulates dermal matrix renewal and skin elasticity through matrikine signaling.CosmeticLimited human trialsPalmitoyl Pentapeptide-4 (Matrixyl)Collagen-boosting signal peptide clinically proven to reduce wrinkles and fine lines in photoaged skin.CosmeticLimited human trialsPalmitoyl Tetrapeptide-7Anti-inflammatory matrikine peptide that reduces IL-6-driven inflammaging for calmer, more youthful skin.CosmeticLimited human trialsPalmitoyl Tripeptide-1Collagen-stimulating matrikine peptide and key component of Matrixyl 3000 for comprehensive anti-aging skin renewal.CosmeticLimited human trialsPancragenTetrapeptide bioregulator (Lys-Glu-Asp-Trp) that binds ACCT sequences in pancreatic gene promoters with 3-fold greater affinity than related peptides, stimulates beta-cell differentiation through Pdx1/Pax6/NGN3 transcription factor activation, and corrects impaired glucose tolerance in primates more physiologically than glimepirideMetabolicLimited human trialsPEG-MGFA supercharged version of your muscle's natural repair signal—PEGylated Mechano Growth Factor stays active for days instead of minutes, waking up dormant stem cells to rebuild and strengthen damaged muscle tissue.Healing & RecoveryStrong preclinicalPemvidutideBalanced dual GLP-1/glucagon receptor agonist with no dose titration required and breakthrough therapy designation for MASH.Weight ManagementModerate human trialsPentadecapeptide (BPC Analog)Nature's tissue-healing peptide from gastric juice—a 15-amino acid powerhouse for recoveryHealing & RecoveryModerate human trialsPidotimodSynthetic dipeptide immunomodulator that enhances both innate and adaptive immunity through Toll-like receptor activationImmuneModerate human trialsPinealonNeuroprotective tripeptide bioregulator (Glu-Asp-Arg) that penetrates the DNA major groove to epigenetically regulate serotonin synthesis, preserve dendritic spine architecture, and activate endogenous antioxidant defenses against age-related neurodegenerationCognitiveEmerging preclinicalPNC-27A cancer-fighting peptide that works like a smart missile—it hunts down and destroys cancer cells by poking holes in them, while leaving your healthy cells completely untouched.ImmuneStrong preclinicalPolymyxin BCyclic lipopeptide antibiotic from Paenibacillus polymyxa containing 10 amino acids with 6 diaminobutyric acid residues and a fatty acid tail — FDA-approved since 1964 as a last-resort treatment for multidrug-resistant Gram-negative infections including Pseudomonas aeruginosa, Acinetobacter baumannii, and carbapenem-resistant Enterobacteriaceae, targeting lipid A of bacterial lipopolysaccharide with rapid bactericidal membrane disruptionImmuneStrong human trialsPralmorelin (GHRP-2)A powerful hexapeptide that stimulates growth hormone release—used clinically in Japan for GH testing and studied for healing and anti-inflammatory effects.Growth HormoneLimited human trialsPramlintideSynthetic amylin analog for comprehensive postprandial glucose control with insulin therapyWeight ManagementStrong human trialsProstamaxProstate-specific tetrapeptide bioregulator (Lys-Glu-Asp-Pro) that normalizes prostatic epithelial differentiation through chromatin remodeling at prostate gene promoters, restores the proliferation-apoptosis balance disrupted in benign prostatic hyperplasia, and reduces inflammatory cytokine signaling in aging prostate tissueHormone SupportLimited human trialsPT-141 (Bremelanotide)The first FDA-approved peptide that works through your brain to reignite sexual desire—think of it as flipping the 'on' switch for arousal rather than just boosting blood flow like traditional ED meds.Sexual HealthStrong human trials
R2
Relaxin-2 (Serelaxin)Recombinant human relaxin-2 studied for acute heart failure recovery and cardiovascular supportHealing & RecoveryLimited human trialsRetatrutideThe world's first triple-action weight loss peptide that simultaneously activates three hormone receptors—GIP, GLP-1, and glucagon—delivering unprecedented weight loss results of up to 24% body weight in clinical trials.Weight ManagementModerate human trials
S12
SelankA clever brain-boosting peptide derived from your immune system's natural tuftsin molecule—it calms anxiety and sharpens your mind without the drowsiness or addiction risks of traditional anti-anxiety medications.CognitiveLimited human trialsSemaglutideThe revolutionary once-weekly GLP-1 medication that helps your body feel full faster and longer, leading to significant weight loss while also protecting your heart—FDA approved and backed by some of the largest clinical trials in obesity medicine history.Weight ManagementStrong human trialsSemaxA brain-boosting peptide that supercharges your cognitive function by ramping up BDNF—the protein your neurons need to grow, connect, and stay sharp—all delivered through a simple nasal spray.CognitiveModerate human trialsSermorelinThe original growth hormone booster that works with your body's natural rhythm—it tells your pituitary gland to release more GH instead of replacing it, keeping your hormonal feedback system healthy and balanced.Growth HormoneModerate human trialsSetmelanotideTargeted MC4R agonist for rare genetic obesity caused by melanocortin pathway defectsWeight ManagementStrong human trialsSLU-PP-332A groundbreaking exercise mimetic compound that tricks your body into thinking it's training for a marathon—boosting metabolism, burning fat, and building endurance without you ever having to hit the gym.MetabolicStrong preclinicalSM-130686Experimental oral growth hormone secretagogue with anabolic potential from preclinical researchGrowth HormoneModerate human trialsSnap-8An advanced 8-amino-acid peptide that relaxes facial muscles from the outside in—think of it as 'Botox in a bottle' that you apply to your skin to smooth expression lines without needles or injections.CosmeticModerate human trialsSS-31 (Elamipretide)A revolutionary mitochondria-targeting peptide that works like a direct energy boost for your cells—binding to cardiolipin in your mitochondria to supercharge ATP production, reduce oxidative stress, and protect your cellular powerhouses from age-related decline.MitochondrialModerate human trialsSubstance P AntagonistsNK1 receptor blockers that reduce pain signals and nausea at the sourceHealing & RecoveryModerate human trialsSurvodutideDual GLP-1/glucagon receptor agonist for obesity and metabolic liver diseaseWeight ManagementStrong human trialsSYN-AKESynthetic snake venom-mimetic tripeptide that competitively antagonizes nicotinic acetylcholine receptors for rapid expression wrinkle reduction.CosmeticLimited human trials
T14
TabimorelinAn investigational oral growth hormone secretagogue that stimulates GH release through ghrelin receptor activation, though development was discontinued due to drug interaction concerns.Growth HormoneModerate human trialsTB-500A powerful fragment of thymosin beta-4 that acts like your body's repair signal—speeding up healing of muscles, tendons, and tissues by promoting cell migration and new blood vessel growth right where you need it most.Healing & RecoveryModerate human trialsTesamorelinThe only FDA-approved peptide specifically designed to melt away stubborn belly fat by telling your brain to release more growth hormone naturally—working with your body's own systems rather than replacing them.Growth HormoneStrong human trialsTestagenTesticular tetrapeptide bioregulator (Lys-Glu-Asp-Gly) that normalizes HPG axis signaling through DNA minor groove binding at testicular gene promoters, increases testosterone synthesis by restoring Leydig cell function, and modulates neuroendocrine feedback loops controlling gonadotropin secretion in aging malesHormone SupportLimited human trialsThymalinRussian thymic peptide complex that rejuvenates immune function and supports healthy agingImmuneLimited human trialsThymopentin (TP-5)Immune-boosting pentapeptide fragment that enhances T-cell function and dendritic cell maturationImmuneModerate human trialsThymopoietinThymic hormone that supports T-cell development and immune function, with the active fragment thymopentin (TP-5) used in clinical researchImmuneLimited human trialsThymosin Alpha-1Your immune system's master trainer—a naturally occurring thymus peptide that wakes up tired immune cells, helps your body fight infections, and keeps your defenses sharp as you age.ImmuneModerate human trialsThymosin Beta-4The body's natural healing peptide that accelerates tissue repair and reduces inflammationHealing & RecoveryModerate human trialsThymulin (FTS)Zinc-dependent thymic hormone for immune restoration and T cell maturationImmuneLimited human trialsThymulin Analog (PAT)Synthetic thymulin-derived nonapeptide with potent analgesic and anti-inflammatory propertiesHealing & RecoveryStrong human trialsTirzepatideThe dual-action powerhouse that targets both GIP and GLP-1 receptors, delivering the most dramatic weight loss results ever seen in a medication—averaging over 20% body weight reduction while also crushing blood sugar levels in people with diabetes.Weight ManagementStrong human trialsTripeptide-29The minimal collagen-mimetic tripeptide (Gly-Pro-Hyp) that stimulates fibroblast collagen synthesis and resists photoaging.CosmeticLimited human trialsTriptorelinGnRH agonist that helps manage prostate cancer, endometriosis, and early puberty by controlling sex hormonesHormone SupportStrong human trials
U2
UlaritideA synthetic natriuretic peptide designed to help your heart pump better and remove excess fluid when you need it most.Healing & RecoveryStrong human trialsUrocortinA powerful stress-response peptide that protects your heart and helps your body handle pressureHealing & RecoveryModerate human trials
V4
VentfortVascular peptide bioregulator complex derived from bovine aorta containing ultrashort peptides (including KED sequence) that normalize vascular endothelial function, reduce total cholesterol by up to 30% in clinical studies, and restore arterial elasticity through epigenetic regulation of extracellular matrix remodeling genes in aging blood vesselsAnti-AgingLimited human trialsVesiluteTissue-specific dipeptide bioregulator (Glu-Asp) that epigenetically normalizes urogenital function through chromatin remodeling, anti-inflammatory cytokine regulation, and smooth muscle tone restoration in the bladder and prostateHormone SupportModerate human trialsVilonImmunomodulatory dipeptide bioregulator (Lys-Glu) that upregulates SIRT1 expression 6-fold through direct DNA promoter binding, activates T-cell differentiation via sphingomyelin signaling, and reduces pro-inflammatory cytokines by up to 6-fold as a natural inducer of TNF toleranceImmuneLimited human trialsVIP (Vasoactive Intestinal Peptide)Endogenous neuropeptide with vasodilatory, anti-inflammatory, and immunomodulatory propertiesHealing & RecoveryModerate human trials