Vendor and compound
PT-141 from One Aminos
One Aminos lists PT-141 at $6.00 per mg, 33% over the $4.50 peer median. 1 third-party certificate for this compound from this vendor is on file, assayed by United Laboratories, averaging 99.52% purity. The cheapest listed price for PT-141 anywhere in the index is $2.20 per mg at Eternal Peptides.
All PT-141 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 | $59.99 | $6.00 | +33% | PT-141 |
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-PT10-091726 | 17 Sept 2026 | 99.52% | 10 mg → 10.69 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 PT-141
| Vendor | Score | Per mg | Certificates for this compound |
|---|---|---|---|
| Next Gen Peptides | 96.1 | $2.50 | 4 |
| Origin Labs | 94.2 | — | 1 |
| Amino Club | 90.8 | $3.00 | 0 |
| Ascend Science | 88.9 | $4.20 | 0 |
| Bench Grade Peptides | 84.2 | $4.60 | 2 |
| Simple Peptide | 81.6 | $4.50 | 1 |
| Modern Aminos | 81.3 | $4.10 | 0 |
| NeuroLabs Research | 79 | $7.19 | 0 |
Ordered by overall evidence score. See every vendor listing PT-141.
Questions
Is PT-141 from One Aminos third-party tested?
Yes. 1 certificate for PT-141 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 PT-141 cost at One Aminos?
$6.00 per milligram, from 10 mg at $59.99. The peer median across every vendor we price for PT-141 is $4.50 per mg, so this is +33% against the market. Prices are normalised per milligram so vials of different sizes compare fairly.
Is One Aminos a good place to buy PT-141?
One Aminos scores 85.6 of 100 on the published rubric and ranks 8 overall, computed from its documentation rather than from opinion. For PT-141 specifically it has 1 certificate on file. Eternal Peptides lists it cheaper at $2.20 per mg.