What is HGH?
HGH (Recombinant Human Growth Hormone (191 aa, somatropin)) is a 191-amino acid recombinant protein. Recombinant human growth hormone acting directly at the GH receptor (GHR) — bypasses the pituitary entirely with non-pulsatile pharmacokinetics. Stimulates hepatic IGF-1 production, anabolic signalling in muscle via IGF-1R, adipose lipolysis, and GH-induced insulin resistance at supraphysiological doses.
Research Applications
GH Receptor Biology
Direct GHR binding, JAK2-STAT5 signalling, receptor downregulation
IGF-1 Axis
Hepatic IGF-1 production, IGFBP regulation, GH→IGF-1 axis
Body Composition
Muscle anabolism, adipose lipolysis, nitrogen retention models
GH Deficiency Models
Hypopituitary and GH-deficient rodent restoration research
vs Secretagogues
Pulsatile (secretagogues) vs non-pulsatile (direct HGH) comparison
Quick Specs
| Form |
C₉₄H₁₄₁N₂₃O₂₈S |
| Purity |
≥99% by HPLC — every batch |
| CAS Number |
9002-63-1 |
| Molecular Weight |
MS molecular weight confirmed — every batch |
| Specification |
≥99% by HPLC — every batch |
| Shelf Life |
24 months unopened |
| Storage |
-20°C sealed | 2–8°C reconstituted (2–4 weeks) |
| Manufacture |
In-house Fmoc SPPS — Qingdao, China |
| Brand |
Clavicular Peptides |
Certificate of Analysis (COA)
Frequently Asked Questions
How do I reconstitute this peptide?
Add 1–2mL bacteriostatic water to the lyophilized HGH vial, directing water down the inner wall slowly. Gently swirl — never shake or vortex as this denatures the 191aa protein. Solution should be clear with no visible particles. Discard if cloudy.
How should this peptide be stored?
Store lyophilized at −20°C or −4°C (freezer). Reconstituted HGH is stable at 2–8°C for up to 72 hours, or up to 3 weeks if stored carefully. HGH is protein-sensitive — avoid shaking, repeated freeze-thaw, heat, and UV light exposure.
What purity is this QSC compound and how is it verified?
QSC HGH (recombinant somatropin, 191aa) is ≥99% pure by HPLC. Each batch includes a COA with HPLC chromatogram and MS molecular weight confirmation. COA is published on the product page and verifiable via Janoshik.
🧪 Peptide Research Tools: Use QSC's free
peptide calculators — reconstitution, BAC water, dosing, half-life, and mixing charts.
🌍 Domestic shipping: 🇺🇸 USA 5–7 days
🌏 International shipping: 7–14 days
⚠️ RESEARCH USE ONLY — NOT FOR HUMAN CONSUMPTION
QSC products are strictly for in vitro and in vivo laboratory research.
Safety & Handling
🚫
Not for Human Use
These compounds are for research only.
🥽
PPE Required
Always use appropriate protective equipment.
❄️
Storage Compliance
Follow product-specific storage conditions.
Product-Specific Storage
-20°C sealed | 2–8°C reconstituted (2–4 weeks)
