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Metabolic peptide
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HGH Fragment 176-191

Weight & metabolic

A synthetic peptide corresponding to amino acids 176-191 of the C-terminal region of human growth hormone.

Frag 176-191HGH FragFragment 176-191hGH 176-191

Observed median price

$42

0%

9

Active listings

0

Independent lab tests

$27–$78

Observed price range

5

Known aliases

Understand this compound

What is HGH Fragment 176-191?

Preclinical / animal onlya.k.a. HGH Frag 176-191 (AOD-9604 is a related, modified analog)

The HGH C-terminal fragment studied in fat-loss research.

Weight & metabolic
⚠

Good to know: Human evidence is extremely limited and effects are modest at best; it is not an approved drug and the quality of research/grey-market material is unverified.

How does HGH Fragment 176-191 work?

The unmodified C-terminal fragment (176-191) of human growth hormone; proposed to trigger lipolysis via beta-3 adrenergic receptor/cAMP-PKA activation of hormone-sensitive lipase, without GH-receptor-mediated growth or IGF-1 effects.

Mechanism of action from published research — how the molecule behaves, not a claim about any product or any human-use effect.

What is HGH Fragment 176-191 researched for?

Studied for fat loss/lipolysis, attempting to isolate GH's fat-burning action from its anabolic and diabetogenic effects.

  • Weight & metabolicStudied in weight, appetite, blood-sugar, and fat-metabolism research.
How far has the research gone?

Preclinical / animal research; effects are documented mainly in rodent studies, with only small, inconclusive human trials.

Where the science stands — an approved drug is not the same as the research-grade material a vendor sells, which is unregulated regardless.

What should I check before buying?
  • Independent purity. Look for a third-party COA (Janoshik or MZ) showing a measured purity — not just a number the vendor typed.
  • Batch match. The strongest evidence is a certificate for the exact batch you’ll receive, attributed to this vendor — check the cross-verification on the listing.
  • Vendor reputation. See how the vendor is talked about in the community before trusting a new name.

Research context only — VialGrade never gives dosing, medical, or human-use guidance.

US legal statusBanned in drug-tested sport (WADA/USADA)

Research-use-only — not FDA-approved

Sold “for research use only,” this compound is not FDA-approved for human use and has not been evaluated for safety, purity, or sterility in people. It is generally not a scheduled controlled substance, so buying it as a research chemical is typically not itself a drug crime — but marketing or using it as a drug is not lawful, and it is not a dietary supplement.

Read the full US legal overview →

General information, not legal or medical advice. VialGrade sells nothing and encourages no human use.

Compare by real cost

Cheapest HGH Fragment 176-191, by price per mg

Vials come in different sizes, so the sticker price lies. This ranks every listing by what a milligram actually costs — with independent test purity where we have it.

#VendorSizePricePer mgTested purityReal $/active mg
1Swiss Chems5mg total$38$7.67/mg——View
2Umbrella Labs10mg total10 Milligrams each$77$7.70/mg——View
3Umbrella Labs5mg total5 Milligrams each$42$8.40/mg——View
4Modern Aminos5mg total$44$8.80/mg——View
5Simple Peptide5mg total$50$10.00/mg——View
6Umbrella Labs2mg total$27$13.5/mg——View

Real $/active mg divides the price-per-mg by the measured purity — the honest cost of the actual peptide, so a 90%-pure vial isn’t compared as if it were 99%. Too cheap? flags a listing far below the market rate — often underdosing or a fake, not a deal. The crown marks the cheapest non-outlier; best value marks the lowest real cost per active mg.

Current market

All HGH Fragment 176-191 listings

Research notes aren’t product proof

Research summaries describe published literature and market data only. They do not establish the identity, quality, safety, or legal status of any listed physical product.