Amino Club vs Zeptix Labs
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
- Zeptix Labs
- 8.17/10
Zeptix Labs
Affiliate links: we may earn a commission if you buy. It never changes a score or rank.
Factor by factor
- 9.3Lab Credibilityweight 55%8.2
- 6.5Shipping & Refundweight 20%10.0
- 8.5Pricingweight 15%8.8
- 1.7Operating Historyweight 5%1.3
- 6.0Transparencyweight 5%5.5
- 38Certificates confirmed at the lab18
- 1Labs named on certificates2
Show as a table
| Category | Amino Club | Zeptix Labs |
|---|---|---|
| Lab Credibility | 9.3 | 8.2 |
| Shipping & Refund | 6.5 | 10.0 |
| Pricing | 8.5 | 8.8 |
| Operating History | 1.7 | 1.3 |
| Transparency | 6.0 | 5.5 |
| Overall | 8.08 | 8.17 |
Products both carry, price for price
| Peptide | Amino Clubper unit | Zeptix Labsper unit |
|---|---|---|
| RetatrutideGuide → | $6.67/mg | $2.67/mg |
| BPC-157Guide → | $4.00/mg | $3.00/mg |
| GHK-CuGuide → | $0.58/mg | $0.40/mg |
| Tesamorelin | $7.00/mg | $5.00/mg |
| TB-500Guide → | $4.00/mg | $9.50/mg |
| Melanotan-2 | $3.00/mg | $5.00/mg |
| MOTS-c | $3.37/mg | $3.00/mg |
| CJC-1295 + Ipamorelin | $6.00/mg | $8.00/mg |
| BPC-157 + TB-500 | $7.50/mg | $5.00/mg |
| GLOW | $1.29/mg | $1.71/mg |
| KLOW | $1.25/mg | $0.81/mg |
| PT-141 | $3.00/mg | $4.50/mg |
| IpamorelinGuide → | $5.00/mg | $6.00/mg |
| Bacteriostatic Water | $1.00/mL | $2.00/mL |
| Cagrilintide | $7.00/mg | $10.00/mg |
| Epitalon | $3.00/mg | $3.00/mg |
| Sermorelin | $6.00/mg | $7.00/mg |
| TirzepatideGuide → | $1.83/mg | $3.67/mg |
| SemaglutideGuide → | $5.00/mg | $7.00/mg |
How they compare: the verdict
Zeptix Labs takes this matchup by a razor-thin margin, 8.17 to 8.08 on the published formula. Its biggest edge is shipping & refunds, where it scores 10.0 against Amino Club's 6.5.
It isn't a clean sweep. Amino Club actually edges ahead on lab credibility (9.3 vs 8.2), so if that factor matters most to you it's worth weighing.
On lab evidence, the heaviest-weighted factor, both Amino Club and Zeptix Labs have independently verified third-party COAs, so the gap comes down to the other categories.
Across the 19 peptides both carry, Amino Club is cheaper per unit more often (Amino Club wins on 11, Zeptix Labs on 7). 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 Zeptix Labs: FAQ
Amino Club or Zeptix Labs: which is better?
Zeptix Labs takes this matchup by a razor-thin margin, 8.17 to 8.08 on the published formula. Its biggest edge is shipping & refunds, where it scores 10.0 against Amino Club's 6.5. It isn't a clean sweep. Amino Club actually edges ahead on lab credibility (9.3 vs 8.2), so if that factor matters most to you it's worth weighing. On lab evidence, the heaviest-weighted factor, both Amino Club and Zeptix Labs have independently verified third-party COAs, so the gap comes down to the other categories. Across the 19 peptides both carry, Amino Club is cheaper per unit more often (Amino Club wins on 11, Zeptix Labs on 7). 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 Zeptix Labs both use third-party testing?
Amino Club: independently verified third-party COAs. Zeptix Labs: 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.
More comparisons
Other head-to-heads featuring Amino Club or Zeptix Labs.