HGH-Frag 176-191 5mg

HGH-Frag (human growth hormone fragment 176–191) is a research peptide used in controlled in-vitro studies of peptide pharmacology, receptor-adjacent signalling, and structure–activity relationships under non-clinical laboratory conditions.

HGH-Frag (Fragment 176–191) — 5 mg | Research Use Only

This listing provides a 5 mg vial of HGH-Frag as a lyophilised solid for cell-based and biochemical model systems. Investigations focus on molecular mechanisms and assay readouts only.
For laboratory research only. Not for human use.

Key features

 

 

• C-terminal hGH fragment (176–191) for in-vitro signalling and SAR investigations.
• Supplied as a lyophilised solid for straightforward handling and storage.
• Unit size: 5 mg per vial.
• Each batch released after stringent internal quality checks.

 

 

Specifications for HGH-Frag

• Product name: HGH-Frag (Fragment 176–191)
• Synonyms: hGH 176–191; Growth hormone fragment 176–191; Somatotropin fragment
• Class: Peptide fragment (research use)
• Form: Lyophilised powder
• Appearance: White to off-white solid
• Note: Salt/counter-ion and hydration state may vary. Refer to the vial label for lot-specific details.

Handling & storage of HGH-Frag

1. Storage (dry): Keep vials at 2–8 °C, protected from light and moisture.
2. Reconstitution: For step-by-step guidance, see our internal guide:
   Reconstituting & Storage.
3. After reconstitution: Store at 2–8 °C, protect from light, use aliquots to reduce handling, and avoid repeated temperature cycling.
4. Compatibility: Use only within research protocols that follow your lab’s SOPs and local regulations.

Important: Free empty 10 ml vial included (HGH-Frag is gel-prone)

Every HGH-Frag order includes a free empty 10 ml vial. HGH-Frag can be gel-prone at higher concentrations. For best laboratory handling, we recommend preparing a minimum total volume of 5 ml after reconstitution to reduce the chance of gelling.

1. Step 1: Reconstitute HGH-Frag in the original peptide vial with 2 ml of diluent.
2. Step 2: Transfer the solution to the included empty 10 ml vial.
3. Step 3: Add additional diluent to reach a minimum total volume of 5 ml.

Note: If HGH-Frag is reconstituted into too small a volume, it may gel, particularly with high-purity material.

Looking for complementary materials? See the guide above and related GH-axis research peptides such as
AOD-9604 5 mg,
CJC-1295 (No DAC) 5 mg, and
Ipamorelin 5 mg.

About HGH-Frag in research

Researchers use HGH-Frag (176–191) to examine peptide fragment behaviour in cell systems, profile downstream second-messenger responses, and compare structure–activity relationships alongside other GH-axis reagents. These investigations occur exclusively in controlled, non-clinical in-vitro environments.

Synthesis & quality

Manufactured via controlled, validated peptide-synthesis processes to deliver high purity and lot-to-lot consistency. Each batch undergoes identity, purity, and appearance checks before release.

Legal & safety

XL Peptides supplies materials strictly for laboratory research. Products are not medications, foods, supplements, or cosmetics; not for human or veterinary use. By purchasing, you confirm you are a qualified researcher and will handle the material in line with your institution’s policies and applicable laws.

FAQs about HGH-Frag

Why is an empty 10 ml vial included?
HGH-Frag can be gel-prone at higher concentrations. The empty 10 ml vial supports preparation at a higher total volume (minimum 5 ml) for improved handling in research workflows.

Where can I find reconstitution guidance?
See our step-by-step internal guide:
Reconstituting & Storage.

Is this product for human use?
No. This material is for research only and is not intended for human consumption or clinical applications.

External resources for researchers

• PubMed — Growth hormone fragment 176–191 (search)
• Google Scholar — hGH 176–191 (literature search)

Related research peptides

• AOD-9604 5 mg
• CJC-1295 (No DAC) 5 mg
• Ipamorelin 5 mg
• Bacteriostatic Water 10 ml

Disclaimer

Used solely for in vitro experiments and cannot be:

• Used in clinical trials involving humans
• Administered to humans as part of an experiment or investigation
• Supplied to another party for human investigational use