Synthesis Peptides PT-141
Evidence Score 76/100 · 3 of 3 PT-141 lab reports confirmed by the issuing lab
As of October 23, 2026, Synthesis Peptides lists PT-141 from $53. It publishes 3 PT-141 lab reports; 3 are confirmed in the issuing lab's own records, the newest dated July 25, 2026. Its confirmed reports cover both purity and toxicity (endotoxin or sterility) testing. Code PEPASSESS gives 10% off.
PT-141 lab reports confirmed by the issuing lab
- July 25, 2026Freedom Diagnosticslot PT10826purity, identity, endotoxin, sterilityview report ↗
- October 17, 2025Freedom Diagnosticspurity, identityview report ↗
- September 12, 2025Freedom Diagnosticspurity, identityview report ↗
PT-141 price at Synthesis Peptides
- From
- $53
- Best per mg
- —
- With code PEPASSESS
- from $48
- Typical per mg
- $4.40/mg
- Sizes
- —
From Synthesis Peptides's own store, as of October 23, 2026; shipping not included; with-code prices take 10% off with PEPASSESS.
Other PT-141 sellers with lab-confirmed reports and a coupon code
| Shop | Score | Per mg | vs typical | Code discount | Code | |
|---|---|---|---|---|---|---|
| BioLongevity Labs | 93 | — | — | 15% | Shop ↗ | |
| Purgo Labs | 88 | $3.00 | 32% below | 15% | Shop ↗ | |
| Ascension Peptides | 87 | $4.90 | — | 50% | Shop ↗ | |
| Retaone Labs | 85 | $2.40 | 45% below | 25% | Shop ↗ | |
| Rivn Research | 84 | $3.30 | 25% below | 15% | Shop ↗ | |
| Bench Grade Peptides | 83 | $5.90 | — | 10% | Shop ↗ |
Synthesis Peptides PT-141 questions
Is Synthesis Peptides's PT-141 lab tested?
Yes. As of October 23, 2026, Synthesis Peptides publishes 3 PT-141 lab reports, and PepAssess matched 3 to the issuing lab's own records (Freedom Diagnostics). The newest confirmed report is dated July 25, 2026.
How much is PT-141 at Synthesis Peptides?
From $53, as of October 23, 2026. Prices come from Synthesis Peptides's own store and exclude shipping and discounts.
Is there a Synthesis Peptides coupon code for PT-141?
Yes: PEPASSESS (10% off), entered at checkout on synthesispeptides.co, as of October 23, 2026.
Who else sells lab-tested PT-141?
As of October 23, 2026, the highest-scoring PT-141 sellers with a lab-confirmed report, besides Synthesis Peptides: BioLongevity Labs (93/100, 6 confirmed), Purgo Labs (88/100, 4 confirmed) and Ascension Peptides (87/100, 1 confirmed).