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HGH Fragment 176-191

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This batch of HGH Fragment 176-191 Peptide has been third-party laboratory tested and verified for quality and consistency. Manufactured under controlled conditions, it is prepared to support reliable use within research environments.

Research Use Notice: This product is intended strictly for research and laboratory use only. Not for human consumption, medical use, or diagnostic purposes.

Contents: HGH Fragment 176-191 (Peptide Compound)
Form: Lyophilized Powder
Purity: 99.68%
Grade: Research Grade
Storage: Store in a cool, dry environment under proper laboratory conditions
Handling: Follow standard laboratory safety protocols

Nothing hidden

Compound profile

Every component, identified. Sequences and identifiers are taken from PubChem and UniProt, so you can check each one yourself.

  • 01 / 01 Component

    hGH 176-191

    Somatotropin (176-191)

    Peptide · 16 amino acids · one disulfide bond

    Sequence

    FLRIVQCRSVEGSCGF

    Formula
    C78H123N23O22S2
    Mol. weight
    1799.1 g/mol
    CAS
    66004-57-7
    PubChem CID
    16131230

    The C-terminal residues 176–191 of human growth hormone, a region studied as the lipolytic domain of the hormone.

99.68%HPLC purity

Lot HGF0001 Labeled 5mg Measured 5.65mg Tested Aug 3, 2026

Open certificate (PDF)

Most published work on this region uses AOD-9604, a modified version (an added tyrosine on residues 177–191). The studies below are that work and are labelled as such.

Published research

What the research covers

Short summaries of peer-reviewed literature on HGH Fragment 176-191: reviews, laboratory and animal studies, and analytical work. Shown for research reference only.

  • Mouse · AOD-960401 / 04

    Lipid metabolism in obese mice

    Studies in obese and β3-adrenergic-receptor knock-out mice compared human GH with its lipolytic C-terminal fragment (the modified AOD-9604 form).

  • Mouse · modified02 / 04

    Fat oxidation

    A 2001 mouse study measured fat oxidation and body weight with human GH or a modified C-terminal fragment.

  • Mixed · AOD-960403 / 04

    Lipolytic domain

    A 2000 study in Hormone Research examined the metabolic effects of a synthetic lipolytic domain of human GH (AOD-9604).

  • In vitro · AOD-960404 / 04

    Detection & metabolism

    Analytical chemists described how the modified fragment is metabolised in vitro and how it can be detected.

Full study index · PubMed (4) 2001 · Mouse The effects of human GH and its lipolytic fragment (AOD9604) on lipid metabolism following chronic treatment in obese mice and beta(3)-AR knock-out mice.
Heffernan M et al. · Endocrinology
PMID 11713213
2001 · Mouse Increase of fat oxidation and weight loss in obese mice caused by chronic treatment with human growth hormone or a modified C-terminal fragment.
Heffernan MA et al. · Int J Obes Relat Metab Disord
PMID 11673763
2000 · Mixed Metabolic studies of a synthetic lipolytic domain (AOD9604) of human growth hormone.
Ng FM et al. · Horm Res
PMID 11146367
2015 · In vitro Detection and in vitro metabolism of AOD9604.
Cox HD et al. · Drug Test Anal
PMID 25208511
VERIFIED TEST RESULTS

Every batch, independently verified.

Open the signed certificate assigned to this product for its batch-specific laboratory report.

CRL Laboratories ISO/IEC 17025:2017 Accredited
CERTIFICATE OF ANALYSIS
99.68%
PURITY BY HPLC
LOT HGF0001
TESTED Aug 3, 2026
LABELED 5mg
MEASURED 5.65mg
FULL QC PANEL
1 laboratory report
Appearance Visual
Good REPORTED
Sample Matrix Reported in CoA
Lyophilized REPORTED
Purity HPLC
99.68% REPORTED
Net Peptide Content HPLC
5.65mg REPORTED
Identity Reported in CoA
Confirmed REPORTED
Fentanyl Screen Reported in CoA
Not Detected REPORTED
Heavy Metals Reported in CoA
Not Detected REPORTED
Sterility Reported in CoA
No Growth REPORTED
Endotoxin Reported in CoA
NMT 0.05 EU/mL REPORTED

Every batch on record.

The certificate assigned to this product.

HGH Fragment 176-191 · 5mg LATEST
LOT HGF0001
99.68% Signed laboratory certificate
COA #COA-2026-OLOL9G
Labeled5mg
Measured5.65mg
IdentityConfirmed
Heavy metalsNot Detected
SterilityNo Growth
EndotoxinNMT 0.05 EU/mL
TestedAug 3, 2026

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Lexar vs. a typical supplier

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What to check Lexar Canada Typical supplier
Certificate matched to lot Lexar Canada: COA number tied to the vial lotCOA-2026-OLOL9G · CRL Laboratories Typical supplier: One generic certificate reused across batches
Purity of this lot Lexar Canada: Published per lot, by HPLC99.68% · lot HGF0001 Typical supplier: A purity claim with no lot reference
Fill accuracy Lexar Canada: Measured mass in the vial5mg labeled → 5.65mg measured Typical supplier: Label claim only
Lab accreditation Lexar Canada: ISO/IEC 17025:2017 accredited lab Typical supplier: In-house or unnamed lab
Contaminant screening Lexar Canada: Fentanyl, heavy metals, sterility, endotoxin Typical supplier: Purity only, if anything
Signed & downloadable Lexar Canada: Signed PDF on every product page Typical supplier: Screenshot, or “available on request”
When something goes wrong Lexar Canada: Free replacement, keep the original Typical supplier: Return shipping at your cost

“Typical supplier” describes common practice in the research-peptide market, not any named company.

Read the full certificate

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Customer reviews

143 reviews
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based on 143 reviews

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Vials arrived cold-packed and sealed. Labels are clean, batch number matches the paperwork.

Daniel M.
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Ordered Tuesday night, plain brown box at my door in Ottawa by Friday morning. No branding anywhere.

Chris R.
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The buy 2 get 1 applied itself in the cart exactly like the banner says. Watched the third one appear on its own.

Michael T.
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Third order now. Same packaging, same speed, same quality every time. That consistency is why I stay.

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Was skeptical about ordering this kind of thing online but the whole process felt legit from cart to doorstep.

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Customer support actually answered at 11pm on a Sunday. A real person, fixed my address typo in two minutes.

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Prices are right on the page, no games at checkout. Total matched to the cent.

Kevin B.
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My GHK-Cu came with proper labeling and an intact seal. Exactly what the photos show.

Matthew H.
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Fast. Like, faster than my usual pharmacy fast.

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Research use & disclaimers

  1. This product is intended strictly for research and laboratory use only. Not for human consumption, medical use, or diagnostic purposes.
  2. Research summaries describe published laboratory and animal studies. They are not claims about the effects of this product and are not medical advice.
  3. Compound identifiers (sequence, formula, molecular weight, CAS) are reference values from PubChem and UniProt. Batch values come from the certificate of analysis, which relates only to the lot tested.
  4. Comparisons describe common practice in the research-peptide market and do not refer to any named company.