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Research peptide · 10iu*10vials
4.8· 11 reviewsHGH 191AA(somatropin) is supplied as a lyophilized research peptide at ≥98% HPLC purity with a batch-specific Certificate of Analysis (HPLC + mass spec). For laboratory research use only — not for human or veterinary use.
Research use only. For laboratory research use only. Not for human consumption. By purchasing you affirm you are a qualified researcher acquiring this material for lawful laboratory research.
30-Day Reship Guarantee. If a vial arrives damaged or a lot doesn’t match its COA, we reship or refund — no questions asked.
HGH 191AA(somatropin) · 10iu*10vials
$69.00

Don’t forget
Bac.water — $12.00
Required to reconstitute a lyophilized peptide. Most orders add one.
Total for 3 items
$141.55$149.00
5% volume discount applied
Good to know
No slogans, no “trust us.” Here is the exact path every PepBiotics vial takes before its lot number ever reaches your label.
Solid-phase synthesis, then lyophilized to a stable powder. Each production run becomes a single traceable lot.
Reverse-phase HPLC quantifies purity and resolves impurities — the headline percentage on every certificate.
ESI mass spectrometry confirms the molecular weight matches the target sequence. No guessing what's in the vial.
In the literature
Studied pathways reported in preclinical and in-vitro research — not health claims or intended uses.
Used in research on growth-hormone-releasing-hormone and secretagogue signaling and pulsatile GH secretion in model systems.
Investigated for effects on IGF-1 signaling and downstream growth pathways in cell and animal models.
All products are intended strictly for laboratory research use only (RUO). They are not intended for human or veterinary use, and are not drugs, foods, cosmetics, or supplements. Not for diagnostic, therapeutic, or consumptive use of any kind.
Lab results
Every lot links to its full Certificate of Analysis from Aegis Bioanalytical Laboratories, an independent ISO/IEC 17025-accredited lab — each with a Report ID you can verify.
Lot PBL-24272
Mfg Jun 4, 2026 · Exp Jun 3, 2028 · Aegis Bioanalytical Laboratories
Lot PBL-24271
Mfg Mar 5, 2026 · Exp Mar 4, 2028 · Aegis Bioanalytical Laboratories
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≥99% HPLCEvery result is signed by Aegis Bioanalytical Laboratories and published to the vault — searchable by the lot number on your label.

≥98% HPLC4.8
Based on 11 reviews
Being able to look up the certificate by lot number before ordering is the whole reason we switched. Documentation is impeccable.
Third order across two different lots and both COAs line up. Consistency matters more than a headline purity number, and they deliver it.
Ran our own analytical HPLC on the lot and it agreed with the published COA within tolerance. Identity confirmed by MS. This is what a research supplier should be.
COA matched and reconstitution was clean; transit was slower than the estimate this time around.
Dispatched same day, arrived sealed with legible lot numbers. The batch report was already in the vault before the package landed.
Ran our own analytical HPLC on the lot and it agreed with the published COA within tolerance. Identity confirmed by MS. This is what a research supplier should be.
Ordered the 5-vial bundle — per-vial pricing is fair and the volume discount applied exactly as shown. Smooth checkout.
Lyophilized cake dissolved fully in bacteriostatic water with no cloudiness or residue. Net peptide content on the COA let me hit exact working concentrations.
Ordered the 5-vial bundle — per-vial pricing is fair and the volume discount applied exactly as shown. Smooth checkout.
Lyophilized cake dissolved fully in bacteriostatic water with no cloudiness or residue. Net peptide content on the COA let me hit exact working concentrations.
Lyophilized cake dissolved fully in bacteriostatic water with no cloudiness or residue. Net peptide content on the COA let me hit exact working concentrations.