Licensed Professionals Only: We exclusively supply laboratories, clinics, and authorized institutions. KYC verification required (24-48h).
Supplier: PenLab Peptide
Pen5mg

Tax Included
Research purposes onlyHGH Fragment 176-191 is a specialised peptide research peptide supplied by Penlab Peptide to licensed clinics, laboratories and medical agencies worldwide. Each batch ships with a Certificate of Analysis (HPLC ≥99% purity, mass-spectrometry identity, Karl-Fischer water content, LAL endotoxin) and is manufactured in EU/US licensed labs. Bulk pricing is available for verified clinics ordering at scale — tiered discounts up to 50% off list price at €50,000+/month volumes, with NET-30 payment terms (see /bulk). Common research applications include Stimulates pulsatile GH release in research model…, …, S…. Penlab is not a consumer supplement vendor — products are sold strictly for in-vitro laboratory research (Research Use Only) by KYC-verified institutional buyers.
HGH Fragment 176-191 is a research compound designed for laboratory investigation and scientific study. This formulation has been developed to meet the highest standards of purity and stability for research applications.
5mg formulation.
Specific protocols should be developed based on research objectives and institutional guidelines. Consult relevant literature and follow established laboratory procedures for handling research compounds.
For laboratory purposes and personal observation only. The information has been collected from numerous studies and analyses conducted over the years and is not intended for diagnosing, treating, or preventing any diseases.
Research Use Profile

Target Organs & Systems
Pituitary gland (somatotrophs), skeletal muscle, adipose tissue, liver, and bone.
Research Summary
A growth-hormone-axis research compound studied for its capacity to stimulate endogenous GH and IGF-1 release in laboratory models, supporting investigations into lean tissue accretion, fat metabolism, and recovery markers.
Key Research Applications
This product is for research purposes only. Not for human consumption.
HGH Fragment 176-191 is a high-purity research compound from PenLab Peptide. 5mg formulation. This Pen formulation is designed for laboratory research applications. All products undergo rigorous quality testing to ensure >99% purity.
Everything you need to know about HGH Fragment 176-191 before you place your research order.
HGH Fragment 176-191 is a research compound designed for laboratory investigation and scientific study. This formulation has been developed to meet the highest standards of purity and stability for research applications.
This formulation has been developed to meet the highest standards of purity and stability for research applications.
All PenLab Peptide research compounds are lab-grade with ≥98% purity, verified by HPLC and shipped with a full Certificate of Analysis (CoA). Each batch is independently tested before release.
This product is supplied strictly for in-vitro laboratory research. It is not a medicine, dietary supplement or cosmetic and is not intended for human or veterinary consumption, diagnosis or treatment.
We ship worldwide to qualified research institutions, laboratories and licensed professionals. Orders are dispatched within 24-48 hours after KYC verification with discreet temperature-controlled packaging.
Store lyophilized peptide vials at 2-8 °C (short term) or -20 °C (long term). After reconstitution keep at 2-8 °C and use within the timeframe specified in the product CoA.
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