Verified purchase
Independent verification confirmed
Submitted the vial blind to a third-party lab for independent purity testing. Result came back within 0.1% of the supplied COA. Pepthera passes the independent check.
Dr. H. Nakashima2 weeks ago
All products
Cognitive
Semax
99.0% purity
4.8 · 20 reviews
ACTH-derived nootropic
$55.00
Select dosage
2 options
1
Volume Pricing
About Semax
A synthetic heptapeptide analogue of adrenocorticotropic hormone (ACTH 4-10) developed in Russian neurological research. Studied for effects on BDNF expression, cognition, and stress resilience. Supplied as lyophilised powder.
What's included
Semax vial
Lyophilized · sealed · multiple sizes
Certificate of analysis
Batch-specific · third-party lab
Cold-chain pack
Temperature-controlled on orders $150+
Handling guide
Storage + reconstitution instructions
Protected fulfillment
- Ships within 1 business day
- Standard 5–7 days · free over $150
- Express 2–3 days · $14.99
- Cold-chain monitored end-to-end
Batch verification
LOT-XPMEFP·HPLC verified·Third-party lab
- 99.0% purity · independently confirmed
- COA matched to batch by serial number
- Cold-chain integrity verified pre-dispatch
Reviews
4.8 · 20 verified
Verified purchase
COA matched a peer-lab retest
Sent a sample to a collaborating lab for blind retest. Their HPLC trace matched the Pepthera COA within rounding error. That cross-validation is the whole point.
D. QuinteroApr 14, 2026
Verified purchase
Cleanest sourcing I've seen
Used three suppliers before Pepthera. This is the only one where the HPLC trace came back completely clean — no secondary peaks, purity sat at 99.4%. Shipping to the UK took 8 days, well within expectations.
R. NakamuraMar 15, 2026
Verified purchase
Consistent, verified, reliable
Four orders in and the quality has not wavered once. Every batch comes with a COA and every COA comes back clean. That level of consistency is rare in this space.
K. JensenFeb 15, 2026
Verified purchase
Reconstituted clean, performed as expected
Vial reconstituted with bacteriostatic water in seconds — no haze, no particulates. Per-batch COA matched the label. Will be reordering for the next study cohort.
J. PetrovJan 16, 2026
Verified purchase
Quality matched a regulated supplier
The level of QC presentation here — serial-tracked COAs, sealed vials, batch IDs — is what I expect from a regulated source, not a research outlet. Will continue ordering.
Dr. P. VermaDec 17, 2025
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