Amino Club vs Peptix USA
Two top US peptide sources scored on the identical published formula: lab credibility, shipping, pricing, operating history, and transparency.
- Amino Club
- 8.08/10
Amino Club
- Peptix USA
- 8.11/10
Peptix USA
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Factor by factor
- 9.3Lab Credibilityweight 55%8.6
- 6.5Shipping & Refundweight 20%9.0
- 8.5Pricingweight 15%8.9
- 1.7Operating Historyweight 5%1.3
- 6.0Transparencyweight 5%3.5
- 38Certificates confirmed at the lab5
- 1Labs named on certificates2
Show as a table
| Category | Amino Club | Peptix USA |
|---|---|---|
| Lab Credibility | 9.3 | 8.6 |
| Shipping & Refund | 6.5 | 9.0 |
| Pricing | 8.5 | 8.9 |
| Operating History | 1.7 | 1.3 |
| Transparency | 6.0 | 3.5 |
| Overall | 8.08 | 8.11 |
Products both carry, price for price
| Peptide | Amino Clubper unit | Peptix USAper unit |
|---|---|---|
| RetatrutideGuide → | $6.67/mg | $5.90/mg |
| BPC-157Guide → | $4.00/mg | $4.00/mg |
| Tesamorelin | $7.00/mg | $6.20/mg |
| GLOW | $1.29/mg | $1.21/mg |
| TirzepatideGuide → | $1.83/mg | $2.90/mg |
How they compare: the verdict
Peptix USA takes this matchup by a razor-thin margin, 8.11 to 8.08 on the published formula. Its biggest edge is shipping & refunds, where it scores 9.0 against Amino Club's 6.5.
It isn't a clean sweep. Amino Club actually edges ahead on transparency (6.0 vs 3.5), so if that factor matters most to you it's worth weighing.
On lab evidence, the heaviest-weighted factor, both Amino Club and Peptix USA have independently verified third-party COAs, so the gap comes down to the other categories.
Across the 5 peptides both carry, Peptix USA is cheaper per unit more often (Amino Club wins on 2, Peptix USA on 3). The price-for-price table below has the detail, per mg (or per IU or mL for products sold that way).
Affiliate links: we may earn a commission if you buy. It never changes a score or rank.
Amino Club vs Peptix USA: FAQ
Amino Club or Peptix USA: which is better?
Peptix USA takes this matchup by a razor-thin margin, 8.11 to 8.08 on the published formula. Its biggest edge is shipping & refunds, where it scores 9.0 against Amino Club's 6.5. It isn't a clean sweep. Amino Club actually edges ahead on transparency (6.0 vs 3.5), so if that factor matters most to you it's worth weighing. On lab evidence, the heaviest-weighted factor, both Amino Club and Peptix USA have independently verified third-party COAs, so the gap comes down to the other categories. Across the 5 peptides both carry, Peptix USA is cheaper per unit more often (Amino Club wins on 2, Peptix USA on 3). The price-for-price table below has the detail, per mg (or per IU or mL for products sold that way).
Do Amino Club and Peptix USA both use third-party testing?
Amino Club: independently verified third-party COAs. Peptix USA: independently verified third-party COAs.
How was this comparison scored?
Both vendors are scored on the identical published formula: lab credibility 55%, shipping 20%, pricing 15%, operating history 5%, transparency 5%. When third-party testing cannot be independently verified, a testing gate holds the score under a cap that starts at 6.0 and rises by at most 2.5 points for operating history, shipping and reviews. Neither vendor can pay to change a score.
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