Pack configuration: one complete 100 IU kit containing 10 individual vials of 10 IU each. This product is sold only as a complete kit; one cart quantity equals one 10-vial kit.

HGH Research Protein is listed as recombinant human somatropin: a 191-amino-acid single-chain protein of approximately 22.1 kDa. It is not merely endogenous pituitary hormone, and its expression host, sequence identity, potency, and excipients are product-specific attributes.

Research context

Recombinant somatropin is a protein, not a short peptide. HPLC purity alone is not a complete identity or quality assessment; intact mass, sequence or peptide mapping, aggregate profile, biological potency, and relevant microbiological testing are important batch attributes.

Common analytical research areas

• Growth-hormone-receptor binding and JAK2/STAT5 signaling.
• Recombinant-protein identity, aggregation, and potency assays.
• Comparison of mass-based concentration with declared IU bioactivity.

Selected scientific references

• FDA somatropin identity and composition example

Research-use notice: Supplied exclusively for laboratory research and analytical use. Not for human or veterinary use, diagnosis, treatment, food, cosmetic, or household use.

Specification record updated 22 Sept 2026. External database links are provided for research context; verify primary sources before analytical use.