Vendor and compound
Retatrutide from One Aminos
One Aminos lists Retatrutide at $7.00 per mg, 9% under the $7.70 peer median. 2 third-party certificates for this compound from this vendor are on file, assayed by United Laboratories, averaging 99.91% purity. The cheapest listed price for Retatrutide anywhere in the index is $2.90 per mg at ZC Labs.
All Retatrutide vendors · One Aminos profile · scores 85.6 of 100, rank 8 · 2 certificates for this compound · verified 4 Oct 2026
What it costs
| Vial | Listed price | Per mg | vs peer median | Listing |
|---|---|---|---|---|
| 10 mg | $69.99 | $7.00 | -9% | Retatrutide (GLP-3RT) |
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-RT10-091526 | 15 Sept 2026 | 99.89% | 10 mg → 10.26 mg | United Laboratories | Open |
| ONE-RT20-091526 | 15 Sept 2026 | 99.94% | 20 mg → 20.7 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 Retatrutide
| Vendor | Score | Per mg | Certificates for this compound |
|---|---|---|---|
| Next Gen Peptides | 96.1 | $4.00 | 16 |
| Origin Labs | 94.2 | — | 5 |
| Amino Club | 90.8 | $7.00 | 2 |
| Ascend Science | 88.9 | $5.60 | 6 |
| ZC Labs | 86.9 | $2.90 | 5 |
| Hydro Research Peptides | 85.9 | — | 1 |
| Bench Grade Peptides | 84.2 | $3.90 | 4 |
| Transition Biotech | 79.8 | $10.50 | 0 |
Ordered by overall evidence score. See every vendor listing Retatrutide.
Questions
Is Retatrutide from One Aminos third-party tested?
Yes. 2 certificates for Retatrutide from One Aminos are 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 Retatrutide cost at One Aminos?
$7.00 per milligram, from 10 mg at $69.99. The peer median across every vendor we price for Retatrutide is $7.70 per mg, so this is -9% against the market. Prices are normalised per milligram so vials of different sizes compare fairly.
Is One Aminos a good place to buy Retatrutide?
One Aminos scores 85.6 of 100 on the published rubric and ranks 8 overall, computed from its documentation rather than from opinion. For Retatrutide specifically it has 2 certificates on file. ZC Labs lists it cheaper at $2.90 per mg.