Weight Management Research Guide

HGH Frag 176-191: Dosage, Benefits & Research Guide

Key Facts

HGH Frag 176-191 is a weight management research peptide (C78H125N23O23S2, MW 1817.1 g/mol). HGH Fragment 176-191 is a synthetic C-terminal fragment of human growth hormone studied for lipolytic activity without the growth-promoting effects of full-length hGH. For laboratory research use only. It is supplied as a lyophilized powder for laboratory and in-vitro research use only — not for human consumption.

Classification	HGH Fragment 176-191 is a synthetic C-terminal fragment of human growth hormone studied for lipolytic activity without the growth-promoting effects of full-length hGH. For laboratory research use only.
Molecular Formula	C78H125N23O23S2
Molecular Weight	1817.1 g/mol
CAS Number	66004-57-7
Research Half-Life	Not established in published literature
Form	Lyophilized powder
Research Category	Weight Management

What is HGH Frag 176-191?

HGH Fragment 176-191 corresponds to the final 16 amino acids of the human growth hormone molecule, a region associated with the hormone's fat-metabolizing activity. In preclinical research it has been investigated for its ability to stimulate lipolysis and inhibit lipogenesis in adipose tissue while showing little effect on IGF-1 levels, insulin sensitivity, or skeletal growth pathways. This selectivity has made it a subject of interest in metabolic and body-composition research models. Supplied as a lyophilized powder for in-vitro and laboratory research use only; not for human consumption.

HGH Frag 176-191 Research Applications

In published and preclinical research, HGH Frag 176-191 has been studied across the following areas:

Lipolysis and fat metabolism research
Body composition studies
Growth hormone fragment signaling
Metabolic research models

HGH Frag 176-191 in Research: Reconstitution & Study Concentrations

HGH Frag 176-191 is supplied as a lyophilized powder. For laboratory research it is reconstituted with bacteriostatic or sterile water; the solvent volume sets the working concentration. Published studies select concentrations specific to the assay or model system — there is no human dose, as HGH Frag 176-191 is not approved for human use. Researchers should reference the primary literature for the model in question and document the exact lot COA.

Worked example: a 5mg vial reconstituted with 2 mL of bacteriostatic water yields 2.50 mg/mL.

Open the reconstitution calculator

HGH Frag 176-191 — Frequently Asked Questions

What is HGH Frag 176-191?

HGH Fragment 176-191 is a synthetic C-terminal fragment of human growth hormone studied for lipolytic activity without the growth-promoting effects of full-length hGH. For laboratory research use only. It is supplied in 5mg vials and intended strictly for in-vitro and laboratory research use only.

How should HGH Frag 176-191 be stored?

HGH Frag 176-191 should be stored at -20°C for long-term storage or 2-8°C for short-term use. Keep the vial sealed and protected from light, moisture, and repeated freeze-thaw cycles. Once reconstituted, store at 2-8°C and use within 30 days.

What purity is HGH Frag 176-191?

HGH Frag 176-191 is manufactured to a minimum purity of ≥98% as verified by HPLC analysis, with identity confirmed by mass spectrometry. Each batch ships with a Certificate of Analysis (COA).

What is the recommended reconstitution protocol for HGH Frag 176-191?

For this 5mg vial, reconstitute with 1mL of bacteriostatic water to yield a concentration of 5.0mg/mL. Inject the water slowly along the inner wall of the vial — do not shake or agitate. Allow the lyophilized powder to dissolve fully (typically 2-5 minutes). Store reconstituted solution at 2-8°C and use within 30 days.

Is HGH Frag 176-191 legal to buy for research?

HGH Frag 176-191 is sold in the United States as a research chemical for laboratory and in-vitro use only. It is not approved by the FDA for human use and is not sold for human consumption. Researchers are responsible for compliance with all applicable federal, state, and institutional regulations.

How is HGH Frag 176-191 reconstituted for research use?

HGH Frag 176-191 ships as a lyophilized (freeze-dried) powder and is reconstituted with bacteriostatic or sterile water before use in research. The volume of solvent added determines the working concentration — use the Elyte reconstitution calculator to derive the exact concentration for a given vial size and solvent volume.

Does HGH Frag 176-191 come with a Certificate of Analysis?

Yes. Every batch of HGH Frag 176-191 from Elyte Peptides ships with a third-party Certificate of Analysis (COA) documenting identity and HPLC purity (≥98%), so research results can be traced to a verified lot.

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