Research Use Only

    This site is an independent educational resource for research compounds. We do not sell, distribute, or endorse human consumption of any compound. By entering, you confirm you are 21 years of age or older and agree to our Terms & Privacy Policy.

    🔬 93K+ researchers trust BodyHackGuide — Join r/BodyHackGuide

    HGH Fragment 176-191

    Metabolic & Weight LossPhase 2

    HGH Fragment 176-191 is a stabilized peptide fragment of the C-terminus of human growth hormone, corresponding to amino acids 176–191 with a tyrosine addition at the N-terminus. It retains the lipolytic activity of full GH but lacks GH's effects on insulin resistance, IGF-1 stimulation, and cellular proliferation.

    Overview

    Key Takeaways

    • Targeted fat loss
    • Visceral fat reduction
    • No insulin resistance

    At A Glance

    The 176-191 fragment activates the fat-metabolizing (lipolytic) signaling pathway through GH receptor interactions without stimulating the IGF-1 axis. It inhibits lipogenesis from glucose in adipocytes and enhances fat breakdown by upregulating hormone-sensitive lipase activity, particularly in visceral fat depots. In rodent studies, it demonstrates 12.5x greater lipolytic potency than full GH at equivalent molar concentrations.

    The 176-191 fragment activates the fat-metabolizing (lipolytic) signaling pathway through GH receptor interactions without stimulating the IGF-1 axis. It inhibits lipogenesis from glucose in adipocytes and enhances fat breakdown by upregulating hormone-sensitive lipase activity, particularly in visceral fat depots. In rodent studies, it demonstrates 12.5x greater lipolytic potency than full GH at equivalent molar concentrations.

    Overview

    HGH Fragment 176-191 is a stabilized peptide fragment of the C-terminus of human growth hormone, corresponding to amino acids 176–191 with a tyrosine addition at the N-terminus. It retains the lipolytic activity of full GH but lacks GH's effects on insulin resistance, IGF-1 stimulation, and cellular proliferation. Developed specifically as a safer fat-loss alternative to HGH.

    Potential Benefits

    Targeted fat lossVisceral fat reductionNo insulin resistanceMetabolic improvementNo IGF-1 elevation

    Potential Research Fields

    ObesityLipodystrophyMetabolic syndromeBody composition

    Chemical Information

    IUPAC Name

    Tyr-hGH(176-191)

    CAS Number

    66004-57-7

    Molecular Formula

    C78H123N23O23S2

    Molecular Mass

    1817.12 g/mol

    Dosing & Protocols

    Unlock Dosing Protocols

    Create a free account to:

    • View beginner, intermediate & advanced protocols
    • See weight-based dosing calculations
    • Access cycle length & frequency data

    Join 2,800+ researchers

    Research

    Unlock Research Data

    Create a free account to:

    • Browse PubMed study summaries
    • See clinical trial phases & results
    • Access mechanism of action details

    Join 2,800+ researchers

    Interactions

    Unlock Interaction Data

    Create a free account to:

    • View known compound interactions
    • See contraindications & warnings
    • Access safety severity ratings

    Join 2,800+ researchers

    No listings found for HGH Fragment 176-191.

    Get HGH Fragment 176-191 Price Drop Alerts

    Set a target price and we'll notify you when any vendor drops below it.

    Related Compounds

    View All

    AOD-9604

    Metabolic & Weight Loss

    AOD-9604 is a modified 16-amino acid fragment of the C-terminal region of human growth hormone (residues 176-191) with an additional tyrosine at the N-terminus and a disulfide bond.

    Cagrilintide

    Metabolic & Weight Loss

    Cagrilintide is a long-acting acylated amylin analog developed by Novo Nordisk.

    Retatrutide

    Metabolic & Weight Loss

    Retatrutide (LY3437943) is an investigational triple hormone receptor agonist developed by Eli Lilly targeting GLP-1, GIP, and glucagon receptors simultaneously.

    Semaglutide

    Metabolic & Weight Loss

    Semaglutide is a GLP-1 receptor agonist with 94% amino acid sequence homology to native human GLP-1.

    Tirzepatide

    Metabolic & Weight Loss

    Tirzepatide is a dual GIP/GLP-1 receptor agonist approved by the FDA as Mounjaro (type 2 diabetes, 2022) and Zepbound (chronic weight management, 2023).

    Frequently Asked Questions

    What is HGH Fragment 176-191 used for in research?

    HGH Fragment 176-191 is a stabilized peptide fragment of the C-terminus of human growth hormone, corresponding to amino acids 176–191 with a tyrosine addition at the N-terminus. It retains the lipolytic activity of full GH but lacks GH's effects on insulin resistance, IGF-1 stimulation, and cellular proliferation. Developed specifically as a safer fat-loss alternative to HGH.

    What forms does HGH Fragment 176-191 come in?

    HGH Fragment 176-191 is available in vials, capsules, and sprays forms.

    How much does HGH Fragment 176-191 cost?

    Pricing varies by vendor and form.

    How do I compare HGH Fragment 176-191 vendors?

    Compare prices, payment methods, shipping, and COA scores across 0 vendors.

    Research Score

    60

    2 PubMed studies

    Quality Indicators

    Data Completeness

    63%
    Description
    Mechanism of Action
    Chemical Data
    Dosing Protocols
    Safety Profile
    PubMed Studies
    Interactions
    Vendor Listings

    Research Credibility

    2PubMed studies

    Limited research available

    Quick Facts

    Molecular Weight

    1817.12 g/mol

    CAS Number

    66004-57-7

    Trial Phase

    Phase 2

    Safety Profile

    Low Risk

    Common Side Effects

    • Mild hypoglycemia (dose-dependent)
    • Redness at injection site
    • Headache

    Stop Use If

    • Type 1 diabetes (hypoglycemia risk)
    • Active malignancy

    Research Disclaimer

    This information is for educational and research purposes only. Not intended as medical advice. Consult a healthcare professional before use.

    Get Bloodwork Done Right

    Comprehensive panels from Anabolic Insights — use code CHONCH for a discount on your first order.