HGH-191AARecombinant Research Protein · Lab-Verified Purity
HGH 191aa is the full 191-amino-acid recombinant version of human growth hormone — the same molecular structure as what your pituitary gland makes naturally. Unlike the smaller "releaser" peptides that nudge your body to make its own GH, this is the finished hormone itself, ready to work directly.
Everything researchers need to know about HGH-191AA
Manufacturing, testing, handling, and shipping details for HGH-191AA. For research purposes only — not for human or animal consumption.
HGH-191AA — Product Overview
HGH 191aa is the full 191-amino-acid recombinant version of human growth hormone — the same molecular structure as what your pituitary gland makes naturally. Unlike the smaller "releaser" peptides that nudge your body to make its own GH, this is the finished hormone itself, ready to work directly.
HGH-191AA — Molecular Characteristics & Vial Specifications
Vial sizes: 24iu. SKU references: HGH191-24IU.
- Chemical class: Recombinant protein
- Full Molecule: The complete 191-amino-acid GH protein, not a fragment or releaser
- Direct Action: Works immediately without needing your pituitary to respond
- Standard Reference: The comparison point for all other GH-releasing research peptides
- Cold Chain Required: Must ship cold and stay refrigerated — do not room-temp
HGH-191AA — Laboratory Handling & Storage
Store lyophilized HGH-191AA at -20°C or colder. Because it is a large recombinant protein, HGH-191AA is especially sensitive to freeze-thaw cycling, mechanical agitation, and elevated temperature. Handle in a temperature-controlled environment and avoid vigorous vortexing during reconstitution.
HGH-191AA — Third-Party Analytical Testing
Every batch of HGH-191AA released by ProSource Labs undergoes independent SDS-PAGE and reverse-phase HPLC — the industry-standard analytical method for this class of research compound. Target chromatographic purity is typically ≥ 99%.
Additional characterization may include ESI mass spectrometry for molecular weight confirmation, Karl Fischer titration for residual moisture, and appearance/solubility inspection. A batch-specific Certificate of Analysis (COA) is available on request through customer support after purchase.
HGH-191AA — Quality Assurance Process
Each production lot of HGH-191AA is quarantined pending analytical release, tested against documented purity, identity, and moisture acceptance criteria, and only released to sellable inventory after passing every QA checkpoint. Batches that fail any single criterion are quarantined and never reach customer-facing inventory.
If a vial of HGH-191AA you received from ProSource Labs ever fails your own institution's incoming QA testing, contact customer support at support@prosourcelabs.org — we retain samples of every batch for cross-verification.
HGH-191AA — Typical Research Application
Research studies on the GH/IGF-1 axis, muscle protein synthesis, adipose tissue metabolism, and tissue-repair biology where direct GH administration (rather than pulse stimulation) is the study design.
HGH-191AA — Packaging & Fast Southern California Shipping
HGH-191AA vials ship in tamper-evident, moisture-resistant, cold-chain-friendly outer packaging from our Southern California distribution facility for fast US domestic delivery — typically 2-4 business days coast-to-coast, with expedited options available at checkout.
Every HGH-191AA shipment is discreet — the outer packaging carries no product-specific branding or direct reference to the compound name inside, protecting researcher privacy. Tracking numbers are emailed automatically. For institutional or high-volume orders, dedicated wholesale pricing is available through the wholesale portal.
Our full FAQ covers ordering, wholesale, lab-verification, and customer support topics.
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About HGH-191AA
What is HGH-191AA?
HGH 191aa is the full 191-amino-acid recombinant version of human growth hormone — the same molecular structure as what your pituitary gland makes naturally. Unlike the smaller "releaser" peptides that nudge your body to make its own GH, this is the finished hormone itself, ready to work directly.
What is HGH-191AA used for in research?
Research studies on the GH/IGF-1 axis, muscle protein synthesis, adipose tissue metabolism, and tissue-repair biology where direct GH administration (rather than pulse stimulation) is the study design.
How is HGH-191AA verified?
Every HGH-191AA vial ships with a batch identifier for full traceability back to its manufacturing lot, an HPLC purity report, and Certificate of Analysis (COA).
How should HGH-191AA be stored?
Lyophilized HGH-191AA is best stored refrigerated (2–8°C) or frozen (-20°C) for long-term stability. Once reconstituted, keep refrigerated and refer to peptide handling best practices.
Where does HGH-191AA ship from?
All HGH-191AA orders ship from ProSource Labs' Southern California facility with tracked domestic delivery.
Is HGH-191AA intended for human use?
No. HGH-191AA is supplied strictly for laboratory research applications and is not intended for and not approved for human or veterinary consumption.