
HGH 191AA (Somatropin)
HGH 191AA is recombinant somatropin — the full 191-amino-acid growth hormone sequence.
Kit contents: 10 vials × 10 iu per vial — 100 iu total
Volume discounts up to 35% off — buy more, save more.
Grab 3+ vials and we throw in a 5 ml bac water, free. Under 3? It's $10.
Volume Pricing — tap a tier to set quantity
Research use only. Not for human or veterinary use. Not FDA approved. Supplied as lyophilized powder in a sterile vial for in-vitro laboratory research by qualified professionals.
Storage & Stability — Research Handling Guidance
- 🧊Lyophilized (sealed vial): store at −20 °C; typically stable 24+ months.
- ❄️Reconstituted: refrigerate at 2–8 °C and use within ~30 days.
- 🔄Avoid repeated freeze/thaw cycles — aliquot before freezing if needed.
- 🌞Protect from light — keep the vial in its carton or amber storage.
General peptide storage guidance for laboratory settings. Research use only — not for human or veterinary use.
About HGH 191AA (Somatropin)
HGH 191AA, or somatropin, is a recombinant protein carrying the complete 191-amino-acid sequence of human growth hormone. It is the hormone itself, not a secretagogue that prompts the body to release it, so it acts directly at growth-hormone receptors. That is what makes it a reference molecule in endocrine and metabolic work rather than a downstream tool.
Studies using it cover the GH/IGF-1 axis, protein and lipid metabolism, cellular growth and tissue signalling. Supplied as a lyophilized powder for reconstitution under controlled lab conditions, ≥98% purity, COA on request. Free US shipping. Research use only, not for human consumption.
HGH 191AA (Somatropin) — Frequently Asked Questions
HGH 191AA (Somatropin) — what is it?
HGH 191AA is recombinant somatropin — the full 191-amino-acid growth hormone sequence.
How pure is HGH 191AA (Somatropin), and is there a COA?
HGH 191AA (Somatropin) is ≥98% purity, checked by HPLC. Want the COA? Ask for it and we'll send it over, so you can confirm identity and purity before you use it.
What does HGH 191AA (Somatropin) ship as, and how do I store it?
HGH 191AA (Somatropin) comes as a freeze-dried powder in a sterile vial. Keep it cold and out of the light until you use it. Once you reconstitute it, refrigerate it and handle it the way you would any peptide in solution.
What sizes does HGH 191AA (Somatropin) come in, and what do they cost?
HGH 191AA (Somatropin) comes in 10-Vial Kit · 100 iu. It starts at $170.00 a kit, and the bigger quantities come down from there — up to 35% off. Shipping inside the US is free, whatever you order.
Is HGH 191AA (Somatropin) for human use?
No, and that isn't a formality. HGH 191AA (Somatropin) is sold for in-vitro laboratory research by qualified professionals only. It is not for human or veterinary use, and it is not FDA approved for any therapeutic purpose.
How do I order and pay for HGH 191AA (Somatropin)?
Put HGH 191AA (Somatropin) in the cart and check out here. Pay by PayPal or Bitcoin. Orders confirmed before 2 PM ET leave the US the same day; anything later goes the next day. New to Bitcoin? There's a five-minute guide linked at checkout.



