Search products
Search the catalog by name or ingredient
Search the catalog by name or ingredient
Research peptide · 20 mg / vial
4.6· 21 reviewsLyophilized Testagen, ≥98% HPLC purity, supplied with a batch-specific Certificate of Analysis (HPLC + mass spec). Reference material for laboratory research use only — not for human or veterinary use.
Total for 3 items
$158.97
Add 7 more to unlock 20% off
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.
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-24222
Mfg Jul 25, 2026 · Exp Jul 24, 2028 · Aegis Bioanalytical Laboratories
Lot PBL-24221
Mfg Apr 17, 2026 · Exp Apr 16, 2028 · Aegis Bioanalytical Laboratories
Questions
Reviews
Keep exploring
30-Day Reship Guarantee. If a vial arrives damaged or a lot doesn’t match its COA, we reship or refund — no questions asked.
Testagen
$90.99
Don’t forget
Bac.water — $18.99
A standard laboratory diluent for lyophilized research materials. Most orders add one.
Every result is signed by Aegis Bioanalytical Laboratories and published to the vault — searchable by the lot number on your label.
4.6
Based on 21 reviews
Lyophilized cake dissolved fully in bacteriostatic water with no cloudiness or residue. Net peptide content on the COA let me hit exact working concentrations.
Purity and identity were on point. Only nitpick is the vial is a touch small for larger diluent volumes — minor.
Packaging was discreet and protective, labels crisp, and the lot resolved to a real report in the COA vault. Zero complaints.
Everything checked out against the COA. Shipping took a day longer than expected but arrived well packed.
Lyophilized cake dissolved fully in bacteriostatic water with no cloudiness or residue. Net peptide content on the COA let me hit exact working concentrations.
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.
Purity and identity were on point. Only nitpick is the vial is a touch small for larger diluent volumes — minor.
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.
No issues with the material itself. The label print was slightly faint on one vial but still fully legible.
No issues with the material itself. The label print was slightly faint on one vial but still fully legible.
Purity and identity were on point. Only nitpick is the vial is a touch small for larger diluent volumes — minor.
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.
Third order across two different lots and both COAs line up. Consistency matters more than a headline purity number, and they deliver it.
Third order across two different lots and both COAs line up. Consistency matters more than a headline purity number, and they deliver it.
Everything checked out against the COA. Shipping took a day longer than expected but arrived well packed.
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.
Everything checked out against the COA. Shipping took a day longer than expected but arrived well packed.
Purity and identity were on point. Only nitpick is the vial is a touch small for larger diluent volumes — minor.
Being able to look up the certificate by lot number before ordering is the whole reason we switched. Documentation is impeccable.
