Vendor and compound
Semax from One Aminos
One Aminos lists Semax at $3.50 per mg, 13% under the $4.00 peer median. 1 third-party certificate for this compound from this vendor is on file, assayed by United Laboratories, averaging 99.44% purity. The cheapest listed price for Semax anywhere in the index is $1.67 per mg at GenX Peptides.
All Semax vendors · One Aminos profile · scores 85.6 of 100, rank 8 · 1 certificate for this compound · verified 4 Oct 2026
What it costs
| Vial | Listed price | Per mg | vs peer median | Listing |
|---|---|---|---|---|
| 10 mg | $34.99 | $3.50 | -13% | Semax |
Read from the vendor’s own store and normalised per milligram, because a smaller vial at a lower sticker price is usually the dearer peptide.
What the laboratory found
| Lot | Assayed | Purity | Label → assayed | Laboratory | Record |
|---|---|---|---|---|---|
| ONE-SEM10-091726 | 17 Sept 2026 | 99.442% | 10 mg → 12.38 mg | United Laboratories | Open |
United Laboratories publishes a lookup, so these reports can be confirmed at the laboratory rather than taken from the vendor. How to check one.
Other vendors selling Semax
| Vendor | Score | Per mg | Certificates for this compound |
|---|---|---|---|
| Next Gen Peptides | 96.1 | $3.50 | 3 |
| Origin Labs | 94.2 | $2.40 | 1 |
| Amino Club | 90.8 | $3.00 | 0 |
| PeptidePlugs | 90.7 | $4.00 | 1 |
| Ascend Science | 88.9 | $4.50 | 1 |
| ZC Labs | 86.9 | $2.00 | 1 |
| Bench Grade Peptides | 84.2 | $5.40 | 2 |
| Simple Peptide | 81.6 | $5.50 | 1 |
Ordered by overall evidence score. See every vendor listing Semax.
Questions
Is Semax from One Aminos third-party tested?
Yes. 1 certificate for Semax from One Aminos is on file, signed by United Laboratories. Each names a lot, prints the assayed mass against the labelled mass, and links to the document it was read from. United Laboratories also publishes a lookup, so the report can be confirmed at the laboratory rather than taken from the vendor.
How much does Semax cost at One Aminos?
$3.50 per milligram, from 10 mg at $34.99. The peer median across every vendor we price for Semax is $4.00 per mg, so this is -13% against the market. Prices are normalised per milligram so vials of different sizes compare fairly.
Is One Aminos a good place to buy Semax?
One Aminos scores 85.6 of 100 on the published rubric and ranks 8 overall, computed from its documentation rather than from opinion. For Semax specifically it has 1 certificate on file. GenX Peptides lists it cheaper at $1.67 per mg.