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    Inner Circle LabsICL Labs
    Peptide Library

    All Peptides A–Z

    Evidence-based research guides covering mechanism of action, pharmacokinetics, dosing ranges, and safety for 128 peptides and small molecules used in modern research.

    128 results

    Research
    Metabolic

    5-Amino-1MQ

    Mass: 159.21 g/mol

    Small molecule NNMT inhibitor researched for reversing diet-induced obesity and improving metabolic function.

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    Research
    Nootropic

    9-Me-BC

    Mass: 182.23 g/mol

    Beta-carboline derivative studied for dopaminergic neuroprotection and cognitive enhancement.

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    Research
    Anabolic

    ACE-031

    Mass: 2956.49 g/mol

    Soluble activin receptor type IIB (ActRIIB) decoy that inhibits myostatin, studied for muscle-wasting conditions.

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    Research
    Solvent

    Acetic Acid

    Mass: 60.05 g/mol

    Common solvent used in peptide reconstitution and formulation, particularly for peptides with poor water solubility.

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    Research
    Regeneration

    AHK-Cu

    Mass: 451.39 g/mol

    Copper-binding tripeptide (Ala-His-Lys) studied for wound healing and hair follicle stimulation.

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    Research
    Metabolic

    AICAR

    Mass: 338.21 g/mol

    AMPK activator and exercise mimetic studied for metabolic enhancement and endurance performance.

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    Research
    Uncategorized

    Amino Tadalafil

    Mass: 390.4 g/mol

    PDE5 inhibitor analog structurally related to tadalafil, not approved for therapeutic use.

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    Research
    Metabolic

    AOD-9604

    Mass: 1,815 g/mol

    Modified growth hormone fragment (hGH 176-191) studied for lipolytic effects on fat metabolism.

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    Research
    Immune Modulation

    ARA-290

    Mass: 1257.32 g/mol

    Erythropoietin-derived peptide targeting the innate repair receptor for neuroprotection without hematopoietic effects.

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    Research
    Hormonal

    Astressin-B

    Mass: 4044 g/mol

    Corticotropin-releasing hormone (CRH) receptor antagonist studied for stress response modulation and hair regrowth.

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    Research
    Tissue Remodeling

    B7-33

    Mass: 2986.54 g/mol

    Single-chain relaxin peptide analog studied for anti-fibrotic effects in cardiac and pulmonary fibrosis.

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    FDA Approved
    Solvent

    Bacteriostatic Water

    Mass: 18.02 g/mol

    Sterile water containing 0.9% benzyl alcohol as a preservative, used for reconstituting lyophilized peptides.

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    Research
    Regeneration

    BPC-157

    Mass: 1419.5 g/mol

    Gastric pentadecapeptide with broad regenerative and cytoprotective properties studied for tissue healing.

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    Research
    Nootropic

    Bromantane

    Mass: 306.24 g/mol

    Adamantane derivative with adaptogenic and actoprotective properties that upregulates dopamine and serotonin synthesis.

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    Research
    Bioregulator

    Bronchogen

    Mass: 446.45 g/mol

    Khavinson bioregulatory peptide targeting bronchial and lung tissue for respiratory function support.

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    Research
    Metabolic

    Cagrilintide

    Mass: 4409 g/mol

    Long-acting amylin analog by Novo Nordisk, studied in combination with semaglutide (CagriSema) for enhanced weight loss.

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    FDA Approved
    Longevity

    Canagliflozin

    Mass: 444.52 g/mol

    SGLT2 inhibitor approved for type 2 diabetes, now studied for longevity and cardioprotective benefits.

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    Research
    Bioregulator

    Cartalax

    Mass: 333.29 g/mol

    Khavinson bioregulatory tripeptide targeting cartilage and connective tissue for joint health.

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    Research
    Hormonal

    CB-03-01

    Mass: 402.5 g/mol

    Steroidal antiandrogen (cortexolone 17α-propionate / clascoterone) studied for topical treatment of androgenetic alopecia and acne.

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    Research
    Cognition

    Cerebrolysin

    Mass: ~10,000 g/mol (mixture)

    Brain-derived neurotrophic peptide mixture used clinically in Europe and Asia for stroke recovery and dementia.

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    Research
    Bioregulator

    Chelohart

    Mass: ~500 g/mol

    Khavinson bioregulatory peptide targeting cardiac tissue for heart function support.

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    Research
    Bioregulator

    Chonluten

    Mass: 319.27 g/mol

    Khavinson bioregulatory peptide targeting bronchial mucosa and gastrointestinal lining.

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    Research
    GH Secretagogue

    CJC-1295

    Mass: 3,647.28 g/mol

    GHRH analog with DAC for extended half-life, stimulating sustained growth hormone release.

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    Research
    GH Secretagogue

    CJC-1295 NO DAC

    Mass: 3,367.88 g/mol

    Modified GRF (1-29) without DAC, producing pulsatile GH release more closely mimicking natural physiology.

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    Research
    Cognition

    Cortexin

    Mass: ~1,000–10,000 g/mol

    Brain cortex-derived polypeptide complex used in Russian/CIS medicine for cerebrovascular disease and TBI.

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    Research
    Bioregulator

    Crystagen

    Mass: 359.34 g/mol

    Khavinson bioregulatory tripeptide targeting the immune system via thymus gland function.

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    Research
    Metabolic

    DADA

    Mass: 230.13 g/mol

    Di-acetyl-di-arginine compound studied as a metabolic research tool.

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    Research
    Cognition

    Dapoxetine

    Mass: 305.42 g/mol

    Short-acting selective serotonin reuptake inhibitor approved in some countries for premature ejaculation.

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    Research
    Nootropic

    Dihexa

    Mass: 504.67 g/mol

    Angiotensin IV analog and potent nootropic that activates hepatocyte growth factor signaling for cognitive enhancement.

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    Research
    Neuropeptide

    DNSP-11

    Mass: 1180.27 g/mol

    Dopamine neuron stimulating peptide derived from GDNF proregion, studied for Parkinson's disease.

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    Research
    Neuropeptide

    DSIP

    Mass: 849.83 g/mol

    Delta sleep-inducing peptide studied for sleep regulation, stress modulation, and neuroendocrine function.

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    FDA Approved
    Longevity

    Empagliflozin

    Mass: 450.91 g/mol

    SGLT2 inhibitor approved for diabetes and heart failure, studied for longevity and metabolic health benefits.

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    Research
    Hormonal

    Enclomiphene

    Mass: 405.97 g/mol

    Trans-isomer of clomiphene, a selective estrogen receptor modulator studied for restoring testosterone in hypogonadal men.

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    Research
    Bioregulator

    Endoluten

    Mass: ~500 g/mol

    Khavinson bioregulatory peptide targeting the pineal gland for melatonin regulation and circadian rhythm support.

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    Research
    Bioregulator

    Epitalon

    Mass: 390.35 g/mol

    Tetrapeptide (Ala-Glu-Asp-Gly) studied for telomerase activation, pineal gland function, and anti-aging effects.

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    Research
    Longevity

    Fasudil

    Mass: 291.37 g/mol

    Rho-kinase (ROCK) inhibitor approved in Japan and China for cerebral vasospasm, studied for neuroprotection.

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    Research
    Neuropeptide

    FGL

    Mass: 1649.8 g/mol

    Neural cell adhesion molecule (NCAM) mimetic peptide studied for cognitive enhancement and neuroprotection.

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    Research
    Nootropic

    Fladrafinil

    Mass: 325.33 g/mol

    Eugeroic compound and prodrug of adrafinil/modafinil, studied for wakefulness promotion and cognitive enhancement.

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    Research
    Anabolic

    Follistatin

    Mass: ~38,007 g/mol

    Activin-binding glycoprotein that inhibits myostatin signaling, studied for dramatic increases in muscle mass.

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    Research
    Longevity

    FOXO4-DRI

    Mass: 5358.06 g/mol

    Senolytic D-retro-inverso peptide that disrupts the FOXO4-p53 interaction to selectively clear senescent cells.

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    Research
    Regeneration

    GHK-Cu

    Mass: 340.38 g/mol

    Copper-binding tripeptide (Gly-His-Lys) with potent wound healing, skin rejuvenation, and collagen-stimulating properties.

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    Research
    GH Secretagogue

    GHRP-2

    Mass: 817.99 g/mol

    Synthetic hexapeptide GH secretagogue stimulating GH release via the ghrelin receptor with appetite-stimulating effects.

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    Research
    GH Secretagogue

    GHRP-6

    Mass: 873.01 g/mol

    Hexapeptide GH secretagogue notable for its strong appetite-stimulating properties via ghrelin receptor activation.

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    Research
    Bioregulator

    Glandokort

    Mass: ~500 g/mol

    Khavinson bioregulatory peptide targeting adrenal gland function for stress adaptation and cortisol regulation.

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    Research
    Anti-inflammatory

    Glutathione

    Mass: 307.32 g/mol

    Endogenous tripeptide antioxidant (Glu-Cys-Gly) critical for detoxification, immune function, and oxidative stress defense.

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    FDA Approved
    Hormonal

    Gonadorelin

    Mass: 1182.29 g/mol

    Synthetic GnRH (gonadotropin-releasing hormone) decapeptide used for fertility diagnostics and hormonal regulation.

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    Research
    Bioregulator

    Gotratix

    Mass: ~500 g/mol

    Khavinson bioregulatory peptide targeting muscle tissue for skeletal muscle function and recovery.

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    Research
    Metabolic

    GW-501516

    Mass: 453.49 g/mol

    PPARδ agonist (Cardarine) studied for endurance enhancement and fat metabolism, abandoned due to carcinogenicity concerns in animal studies.

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    FDA Approved
    Hormonal

    HCG

    Mass: ~36,700 Da

    Human chorionic gonadotropin used for fertility treatment and off-label for testosterone support during TRT.

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    Research
    GH Secretagogue

    Hexarelin

    Mass: 887.06 g/mol

    Potent hexapeptide GH secretagogue with additional cardioprotective properties through CD36 receptor binding.

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    Research
    Metabolic

    HGH Fragment 176-191

    Mass: 1815 g/mol

    C-terminal fragment of human growth hormone identical to AOD-9604, studied for lipolytic fat-metabolizing properties.

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    FDA Approved
    Hormonal

    HMG

    Mass: ~36,000 Da

    Human menopausal gonadotropin containing FSH and LH, used in fertility treatments for ovulation induction.

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    Research
    Longevity

    Humanin

    Mass: 2687.2 g/mol

    Mitochondrial-derived peptide with potent cytoprotective and anti-apoptotic effects, studied for neurodegeneration and aging.

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    Research
    Anti-inflammatory

    Ibudilast

    Mass: 230.31 g/mol

    PDE4/PDE10 inhibitor and glial cell modulator studied for neuroinflammation, ALS, and multiple sclerosis.

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    Research
    Anabolic

    IGF-1 DES

    Mass: 7371.48 g/mol

    Truncated IGF-1 variant lacking the first 3 amino acids, resulting in enhanced potency and reduced IGF-binding protein affinity.

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    Research
    Anabolic

    IGF-1 LR3

    Mass: 9117.60 g/mol

    Long-acting IGF-1 analog with an extended half-life due to reduced binding protein affinity, studied for muscle growth.

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    Research
    GH Secretagogue

    Ipamorelin

    Mass: 711.85 g/mol

    Selective growth hormone secretagogue with minimal cortisol, prolactin, or appetite effects.

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    Research
    Metabolic

    ITPP

    Mass: 605.98 g/mol

    Inositol trispyrophosphate that enhances oxygen delivery to tissues by modifying hemoglobin oxygen affinity.

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    Research
    Hormonal

    Kisspeptin-10

    Mass: 1302.4 g/mol

    Hypothalamic neuropeptide that stimulates GnRH release, playing a central role in puberty onset and reproductive function.

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    Research
    Anti-inflammatory

    KPV

    Mass: 371.46 g/mol

    C-terminal tripeptide fragment of α-MSH with potent anti-inflammatory effects, studied for IBD and gut inflammation.

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    FDA Approved
    Metabolic

    L-Carnitine

    Mass: 161.20 g/mol

    Amino acid derivative essential for fatty acid transport into mitochondria for energy production.

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    FDA Approved
    GLP-1 Agonist

    Liraglutide

    Mass: 3,751.20 g/mol

    Daily injectable GLP-1 agonist approved for obesity treatment since 2014 with proven cardiovascular benefits.

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    Research
    Bioregulator

    Livagen

    Mass: 461.5 g/mol

    Khavinson bioregulatory peptide targeting liver tissue for hepatic function and regeneration support.

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    Research
    Immune Modulation

    LL-37

    Mass: 4493.3 g/mol

    Human cathelicidin antimicrobial peptide with broad-spectrum antimicrobial, immunomodulatory, and wound healing properties.

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    Research
    Metabolic

    Mazdutide

    Mass: 4563.1 g/mol

    Dual GLP-1/glucagon receptor agonist by Innovent Biologics, in clinical trials for obesity and NAFLD.

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    Research
    Metabolic

    Meldonium

    Mass: 146.19 g/mol

    Carnitine biosynthesis inhibitor used in Baltic states for cardiovascular protection, banned by WADA since 2016.

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    FDA Approved
    Metabolic

    Methylene Blue

    Mass: 319.9 g/mol

    Phenothiazine dye with mitochondrial electron carrier properties, FDA-approved for methemoglobinemia and studied for cognition.

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    Research
    Anabolic

    MGF

    Mass: ~2,867 g/mol

    Mechano Growth Factor, a splice variant of IGF-1 produced in response to mechanical stress, studied for muscle repair.

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    Research
    GH Secretagogue

    MK-677

    Mass: 528.67 g/mol

    Non-peptide oral ghrelin mimetic (ibutamoren) that stimulates sustained GH and IGF-1 elevation without injections.

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    Research
    Mitochondrial

    MOTS-c

    Mass: 2,177.57 g/mol

    Mitochondrial-derived peptide that enhances metabolic homeostasis and insulin sensitivity through AMPK activation.

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    FDA Approved
    Hormonal

    MT-1

    Mass: 1646.8 g/mol

    Afamelanotide (Scenesse), FDA-approved melanocortin agonist for erythropoietic protoporphyria (EPP).

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    Research
    Hormonal

    MT-2

    Mass: 1024.18 g/mol

    Non-selective melanocortin receptor agonist studied for tanning, sexual dysfunction, and appetite suppression.

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    Research
    Metabolic

    NAD+

    Mass: 663.4 g/mol

    Essential coenzyme for cellular energy metabolism, DNA repair, and sirtuin activation, central to longevity research.

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    Research
    Regeneration

    Nephrilin

    Mass: ~4,500 Da

    Renoprotective peptide studied for preventing kidney damage and supporting renal function in diabetic nephropathy.

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    Research
    Nootropic

    Noopept

    Mass: 318.37 g/mol

    Potent nootropic dipeptide (N-phenylacetyl-L-prolylglycine ethyl ester) with cognitive enhancing and neuroprotective effects.

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    Research
    Bioregulator

    Ovagen

    Mass: 375.37 g/mol

    Khavinson bioregulatory peptide targeting liver and GI tract tissue for digestive function support.

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    Research
    Nootropic

    Oxiracetam

    Mass: 158.16 g/mol

    Racetam-class nootropic with cholinergic and glutamatergic effects, studied for memory and cognitive enhancement.

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    FDA Approved
    Neuropeptide

    Oxytocin

    Mass: 1007.19 g/mol

    Endogenous neuropeptide involved in social bonding, labor induction, and milk ejection, with emerging psychiatric applications.

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    Research
    Cognition

    P21

    Mass: 578.3 g/mol

    CNTF-derived peptide fragment that promotes neurogenesis and cognitive enhancement without CNTF's appetite-suppressing effects.

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    Research
    Bioregulator

    Pancragen

    Mass: 576.25 g/mol

    Khavinson bioregulatory peptide targeting pancreatic tissue for blood sugar regulation and pancreatic health.

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    Research
    Cognition

    PE-22-28

    Mass: 773.9 g/mol

    Spadin analog that acts as a TREK-1 channel blocker with rapid antidepressant and cognitive-enhancing effects.

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    Research
    Anabolic

    PEG-MGF

    Mass: ~5,000 g/mol

    PEGylated Mechano Growth Factor with extended half-life for sustained muscle repair and growth signaling.

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    FDA Approved
    Anti-inflammatory

    Pentosan Polysulfate

    Mass: ~6,000 g/mol

    FDA-approved semi-synthetic polysaccharide heparinoid used for interstitial cystitis, with emerging applications in osteoarthritis.

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    Research
    Nootropic

    Phenibut

    Mass: 179.22 g/mol

    GABA-B receptor agonist and voltage-dependent calcium channel blocker used in Russia for anxiety and sleep disorders.

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    Research
    Nootropic

    Phenibut FAA

    Mass: 179.22 g/mol

    Free amino acid form of phenibut with improved sublingual bioavailability compared to the HCl salt form.

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    Research
    Nootropic

    Phenylpiracetam

    Mass: 218.26 g/mol

    Phenylated piracetam derivative with enhanced potency and psychostimulatory properties, banned by WADA.

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    Research
    Bioregulator

    Pielotax

    Mass: ~500 g/mol

    Khavinson bioregulatory peptide targeting kidney tissue for renal function support and nephroprotection.

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    Research
    Bioregulator

    Pinealon

    Mass: 418.41 g/mol

    Khavinson tripeptide (Glu-Asp-Arg) targeting the central nervous system for neuroprotection and cognitive support.

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    Research
    Nootropic

    Piracetam

    Mass: 142.16 g/mol

    The original racetam nootropic, studied for decades for cognitive enhancement, neuroprotection, and membrane fluidity effects.

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    Research
    Longevity

    PNC-27

    Mass: 4031.73 g/mol

    p53-derived peptide that selectively targets and destroys cancer cells by binding HDM-2 on their surface.

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    Research
    Bioregulator

    Prostatilen

    Mass: ~500 g/mol

    Prostate-derived peptide bioregulator used in Russian medicine for prostatitis and benign prostatic hyperplasia.

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    FDA Approved
    Hormonal

    PT-141

    Mass: 1025.18 g/mol

    Bremelanotide (Vyleesi), FDA-approved melanocortin receptor agonist for hypoactive sexual desire disorder in women.

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    Research
    Regeneration

    PTD-DBM

    Mass: 3082.6 g/mol

    Protein transduction domain-fused peptide studied for bone regeneration and osteogenic differentiation.

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    Research
    Metabolic

    Retatrutide

    Mass: 4845.44 g/mol

    Triple agonist (GLP-1/GIP/Glucagon) by Eli Lilly showing ~24% weight loss in Phase 2 trials—the most of any obesity drug tested.

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    Research
    Bioregulator

    Retinalamin

    Mass: ~500 g/mol

    Retina-derived peptide bioregulator used in Russian ophthalmology for retinal degenerative conditions.

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    FDA Approved
    Longevity

    Riociguat

    Mass: 422.42 g/mol

    Soluble guanylate cyclase (sGC) stimulator approved for pulmonary arterial hypertension and CTEPH (Adempas).

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    Research
    Hormonal

    RU-58841

    Mass: 369.34 g/mol

    Non-steroidal topical antiandrogen studied for androgenetic alopecia, binding androgen receptors without systemic effects.

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    Research
    Cognition

    Selank

    Mass: 751.89 g/mol

    Synthetic heptapeptide anxiolytic derived from tuftsin, approved in Russia for anxiety and cognitive enhancement.

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    FDA Approved
    GLP-1 Agonist

    Semaglutide

    Mass: 4,113.58 g/mol

    Gold standard GLP-1 receptor agonist with 15-17% average body weight loss in clinical trials.

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    Research
    Cognition

    Semax

    Mass: 813.92 g/mol

    ACTH(4-7) analog with Pro-Gly-Pro extension, approved in Russia as a nootropic and neuroprotective nasal spray.

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    FDA Approved
    GH Secretagogue

    Sermorelin

    Mass: 3,357.88 g/mol

    Synthetic GHRH(1-29) analog used to stimulate natural GH production, FDA-approved for GH deficiency diagnostics.

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    Research
    Bioregulator

    Sigumir

    Mass: ~500 g/mol

    Khavinson bioregulatory peptide targeting joints and cartilage for musculoskeletal support.

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    Research
    Regeneration

    SM-04554

    Mass: 296.32 g/mol

    Wnt pathway modulator studied for androgenetic alopecia and osteoarthritis by Samumed/Biosplice.

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    Research
    Tissue Remodeling

    SNAP-8

    Mass: 1073.2 g/mol

    Acetyl octapeptide-3 that inhibits SNARE complex formation to reduce muscle contraction and facial wrinkles topically.

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    Research
    Longevity

    SS-31

    Mass: 639.8 g/mol

    Mitochondria-targeting tetrapeptide (elamipretide) that stabilizes cardiolipin, in clinical trials for Barth syndrome and heart failure.

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    Research
    Bioregulator

    Stamakort

    Mass: ~500 g/mol

    Khavinson bioregulatory peptide targeting stomach tissue for gastric function support.

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    Research
    Metabolic

    Survodutide

    Mass: 4231.6 g/mol

    Dual GLP-1/glucagon receptor agonist by Boehringer Ingelheim in Phase 3 trials for obesity and NASH/MASH.

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    Research
    Bioregulator

    Svetinorm

    Mass: ~500 g/mol

    Khavinson bioregulatory peptide targeting liver tissue for hepatoprotection and metabolic support.

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    Research
    Bioregulator

    Taxorest

    Mass: ~500 g/mol

    Khavinson bioregulatory peptide targeting bronchial and lung tissue for respiratory support.

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    Research
    Regeneration

    TB-500

    Mass: 889.01 g/mol

    Synthetic fragment of thymosin beta-4 with potent wound healing, anti-inflammatory, and tissue repair properties.

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    FDA Approved
    GH Secretagogue

    Tesamorelin

    Mass: 5,135.91 g/mol

    FDA-approved GHRH analog for reducing visceral adipose tissue in HIV-associated lipodystrophy.

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    Research
    Bioregulator

    Testagen

    Mass: 376.41 g/mol

    Khavinson bioregulatory peptide targeting testicular tissue for testosterone support and male reproductive health.

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    Research
    Bioregulator

    Testoluten

    Mass: ~500 g/mol

    Khavinson bioregulatory peptide targeting testicular function for hormonal balance and spermatogenesis.

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    Research
    Bioregulator

    Thymalin

    Mass: 858.9 g/mol

    Thymic peptide extract used in Russian medicine for immune modulation and thymus gland restoration.

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    Research
    Bioregulator

    Thymogen

    Mass: 349.34 g/mol

    Synthetic dipeptide (Glu-Trp) thymic bioregulator used in Russia for immune system support.

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    Research
    Immune Modulation

    Thymosin Alpha-1

    Mass: 3108 g/mol

    28-amino acid thymic peptide with broad immunomodulatory effects, approved in over 30 countries for hepatitis and immunodeficiency.

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    Research
    Bioregulator

    Thyreogen

    Mass: ~500 g/mol

    Khavinson bioregulatory peptide targeting thyroid tissue for thyroid function normalization.

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    FDA Approved
    GLP-1/GIP Agonist

    Tirzepatide

    Mass: 4,813.53 g/mol

    Dual GIP/GLP-1 receptor agonist with up to 22.5% weight loss in clinical trials.

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    Research
    Hormonal

    Topilutamide

    Mass: 403.24 g/mol

    Topical antiandrogen (fluridil) for androgenetic alopecia treatment without systemic antiandrogenic effects.

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    Research
    Neuropeptide

    Vasoactive Intestinal Peptide

    Mass: 3325 g/mol

    28-amino acid neuropeptide with vasodilatory, immunomodulatory, and neuroprotective effects across multiple organ systems.

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    Research
    Bioregulator

    Ventfort

    Mass: ~500 g/mol

    Khavinson bioregulatory peptide targeting blood vessel tissue for vascular health and endothelial support.

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    Research
    Bioregulator

    Vesselget

    Mass: ~500 g/mol

    Khavinson bioregulatory peptide supporting vascular wall integrity and circulatory health.

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    Research
    Bioregulator

    Vesugen

    Mass: 390.39 g/mol

    Khavinson tripeptide (Lys-Glu-Asp) targeting vascular endothelium for blood vessel function and cardiovascular support.

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    Research
    Bioregulator

    Vilon

    Mass: 257.30 g/mol

    Khavinson dipeptide (Lys-Glu) bioregulator targeting the immune system for immunomodulation and thymic support.

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    Research
    Bioregulator

    Visoluten

    Mass: ~500 g/mol

    Khavinson bioregulatory peptide targeting retinal and visual system tissue for eye health support.

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    FDA Approved
    Tissue Remodeling

    Vosoritide

    Mass: 4102.78 g/mol

    C-type natriuretic peptide analog (Voxzogo), FDA-approved for achondroplasia in children to improve linear growth.

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    Research
    Bioregulator

    Zhenoluten

    Mass: ~500 g/mol

    Khavinson bioregulatory peptide targeting female reproductive tissue for ovarian function and hormonal balance.

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    Research
    Immune Modulation

    Zinc Thymulin

    Mass: 858.86 g/mol

    Zinc-bound form of thymulin (FTS-Zn), a thymic hormone essential for T-cell maturation and immune regulation.

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