HGH Fragment 176-191

Hgh Fragment 176 191 Research and Mechanism

Hgh fragment 176 191 is a synthetic peptide corresponding to amino acids 176 through 191 at the C-terminal region of human growth hormone. This fragment was identified as the lipolytic domain of HGH, meaning it appears to influence fat metabolism without activating the full growth hormone receptor. A review published in PMC notes that this region of HGH does not bind to the GH receptor in the same way as full-length hormone, which explains why researchers observe no significant IGF-1 elevation or insulin resistance in preclinical studies involving the fragment.

Research published in Endocrinology and summarised by Peptide Journal indicates that hgh fragment 176 191 may exhibit antilipogenic activity in adipose tissue, potentially reducing fat accumulation without the systemic growth effects associated with full HGH administration. It is critical to emphasise that these findings derive from animal models and isolated tissue experiments. There are no large-scale human clinical trials establishing efficacy, and this compound is sold strictly for in vitro and laboratory research use only. It is not approved by the TGA or FDA for human consumption, therapeutic use, or diagnosis.

Hgh Fragment 176 191 5mg and Reconstitution

Hgh Fragment 176 191 Dose for Research Protocols

For laboratory research, hgh fragment 176 191 is typically supplied as a lyophilised powder requiring reconstitution. The 5mg vial is the standard research unit. Preclinical reference protocols suggest reconstituting with 2.0 to 2.5 mL of bacteriostatic water to achieve a concentration of 2.0 to 2.5 mg per mL, allowing precise unit measurement for assay work. Researchers investigating hgh fragment 176 191 dosing should note that the fragment has a relatively short half-life in plasma, which may necessitate multiple administration points in extended study designs. Gently swirl the vial until fully dissolved. Do not shake vigorously. Allow the solution to settle at room temperature before aliquoting.

Storage Protocols

Store lyophilised hgh fragment 176 191 at -20 degrees C protected from light and moisture. Once reconstituted, store at 2 to 8 degrees C and use within 14 to 21 days depending on your research protocol. For extended stability, aliquot into sterile vials and freeze at -20 degrees C. Avoid repeated freeze-thaw cycles.

How Hgh Fragment 176 191 Compares to Other Research Compounds

Hgh Fragment 176 191 vs Aod 9604

Both hgh fragment 176 191 and AOD-9604 are derived from the C-terminal region of human growth hormone and are studied for fat metabolism, but they are not identical. AOD-9604 is a modified analog consisting of amino acids 177 through 191 with an added tyrosine residue and a disulfide bridge that improves stability against enzymatic degradation. Hgh fragment 176 191 is the native linear sequence (amino acids 176-191) with no structural modifications. According to research summaries, both compounds appear to avoid IGF-1 elevation and blood sugar disruption, but AOD-9604 has undergone more formal pharmaceutical development including six human clinical trials, whereas hgh fragment 176 191 remains primarily a preclinical research compound. Researchers often study both to compare native versus stabilised peptide behavior in metabolic assays.

Hgh 191aa vs Hgh Fragment 176 191

HGH 191aa is the full 191-amino-acid human growth hormone that activates the complete GH receptor axis, stimulating IGF-1 production, cellular growth, bone density, and carbohydrate metabolism alongside lipolysis. Hgh fragment 176 191 isolates only the C-terminal lipolytic domain, theoretically providing fat metabolism research signals without the growth, glucose, and IGF-1 effects of the full hormone. For laboratories studying selective metabolic pathways, hgh fragment 176 191 offers a more targeted tool than HGH 191aa, though it lacks the systemic anabolic profile of the complete protein.

Hgh Fragment 176 191 and Cjc 1295 Dac

Researchers investigating metabolic stacks sometimes explore hgh fragment 176 191 alongside CJC-1295 DAC. CJC-1295 DAC is a growth hormone releasing hormone analog that stimulates endogenous GH pulse amplitude and duration, while hgh fragment 176 191 provides a direct exogenous lipolytic signal. In theory, the combination allows researchers to study elevated GH environments alongside isolated fat metabolism pathways, though this stack is purely experimental and has no established clinical protocol. Both compounds are for research use only.

Hgh Fragment 176 191 vs 5 Amino 1mq

While hgh fragment 176 191 is a peptide fragment targeting adipose tissue lipolysis through beta-adrenergic receptor pathways, 5 amino 1mq is a small molecule NNMT inhibitor that may elevate NAD+ and activate SIRT1 to influence metabolic efficiency. 5 amino 1mq is typically studied for body composition and fat cell metabolism from an enzymatic angle, whereas hgh fragment 176 191 is studied from a peptide hormone signaling perspective. These represent different mechanistic approaches to metabolic research and may be complementary in certain assay panels.

Product Specifications

Purity and Analysis

• Purity: Greater than or equal to 98% by HPLC
• Sequence: H-Tyr-Leu-Arg-Ile-Val-Gln-Cys-Arg-Ser-Val-Glu-Gly-Ser-Cys-Gly-Phe-OH (amino acids 176-191 of human growth hormone)
• Molecular Formula: C78H125N23O23S2
• Molecular Weight: 1817.1 g/mol
• Appearance: White to off-white lyophilised powder
• Source: Synthetic, manufactured via solid-phase peptide synthesis

Each batch is independently tested. Request the Certificate of Analysis (COA) for your specific batch number to verify purity, mass spec, and chromatography data.

Storage and Handling

• Lyophilised storage: -20 degrees C, protected from light and moisture
• Shelf life (unreconstituted): 24 months when stored correctly
• Handling: Use sterile technique. Avoid repeated freeze-thaw cycles

Shipping and Returns

We ship hgh fragment 176 191 from our Australian facility via express domestic courier. Orders placed before 2:00 PM AEST dispatch the same business day. All peptide orders are packaged in insulated, discreet packaging with cold-chain protection where required.

• Minimum order: $200 AUD
• Free shipping: Orders over $200 AUD
• Flat rate: $15 AUD for orders under $200
• Delivery time: 1 to 5 business days Australia-wide
• Returns: Unopened vials may be returned within 30 days of delivery for store credit or replacement. We do not accept returns on reconstituted or opened products due to stability concerns. Read the full returns policy.

Frequently Asked Questions

Is hgh fragment 176 191 approved for human use?
No. This peptide is strictly for research and laboratory use. It is not approved by the TGA for human consumption, therapeutic application, or clinical use.

What is the difference between hgh fragment 176 191 and AOD-9604?
Hgh fragment 176 191 is the native linear sequence of HGH amino acids 176-191. AOD-9604 is a modified analog with enhanced stability and a different amino acid range (177-191 plus tyrosine). Both are studied for fat metabolism without IGF-1 effects, but AOD-9604 has a more extensive clinical trial history.

Can hgh fragment 176 191 be stacked with CJC-1295 DAC?
Some research protocols explore combining hgh fragment 176 191 with CJC-1295 DAC to study the interaction between exogenous lipolytic signals and endogenous GH pulse amplification. This is experimental and not supported by clinical guidelines.

Do you ship outside Australia?
Currently, we only ship to Australian addresses. We do not export peptides due to varying international customs regulations.

How do I verify the purity of my batch?
Every batch ships with a unique batch number. Enter this number on our COA lookup page to download the HPLC and mass spec report for your specific vial.