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Research peptide · 5 mg / vial
4.4· 17 reviewsLyophilized Semax, ≥99% HPLC purity, supplied with a batch-specific Certificate of Analysis (HPLC + mass spec) · C37H51N9O10S · MW 813.92 g/mol · CAS 80714-61-0. Reference material for laboratory research use only — not for human or veterinary use.
Total for 3 items
$93.97
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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.
Data sheet
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-24108
Mfg Jul 16, 2026 · Exp Jul 15, 2028 · Aegis Bioanalytical Laboratories
Lot PBL-24107
Mfg Apr 11, 2026 · Exp Apr 10, 2028 · Aegis Bioanalytical Laboratories
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30-Day Reship Guarantee. If a vial arrives damaged or a lot doesn’t match its COA, we reship or refund — no questions asked.
Semax · 5 mg
$25.99
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.
CAS number, sequence, molecular weight, HPLC purity, storage and reconstitution — every value on this page, in one branded PDF for your lab records.
Download spec sheet (PDF)4.4
Based on 17 reviews
Purity held up and identity confirmed. Used it in a BDNF-expression study without any solubility issues. Documentation was complete and lot-searchable.
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.
Dispatched same day, arrived sealed with legible lot numbers. The batch report was already in the vault before the package landed.
No issues with quality or the COA. Shipping was reasonable. Would buy again for the next round of work.
Packaging was discreet and protective, labels crisp, and the lot resolved to a real report in the COA vault. Zero complaints.
Ordered the 5-vial bundle — per-vial pricing is fair and the volume discount applied exactly as shown. Smooth checkout.
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.
Lyophilized cake dissolved fully in bacteriostatic water with no cloudiness or residue. Net peptide content on the COA let me hit exact working concentrations.
Being able to look up the certificate by lot number before ordering is the whole reason we switched. Documentation is impeccable.
Packaging was discreet and protective, labels crisp, and the lot resolved to a real report in the COA vault. Zero complaints.
Product was fine and matched the COA, but this shipment was noticeably slower than my previous orders.
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.
Being able to look up the certificate by lot number before ordering is the whole reason we switched. Documentation is impeccable.
No problem with the vial or its documentation, but the carrier held my package longer than the quoted window.
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.
