Mizan Supply vs Zeptix Labs
Two top US peptide sources scored on the identical published formula: lab credibility, shipping, pricing, operating history, and transparency.
- Mizan Supply
- 7.83/10
Mizan Supply
- Zeptix Labs
- 8.23/10
Zeptix Labs
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Factor by factor
- 8.2Lab Credibilityweight 55%8.3
- 8.0Shipping & Refundweight 20%10.0
- 8.9Pricingweight 15%8.8
- 0.7Operating Historyweight 5%1.3
- 7.0Transparencyweight 5%5.5
- 18Certificates confirmed at the lab20
- 2Labs named on certificates2
Show as a table
| Category | Mizan Supply | Zeptix Labs |
|---|---|---|
| Lab Credibility | 8.2 | 8.3 |
| Shipping & Refund | 8.0 | 10.0 |
| Pricing | 8.9 | 8.8 |
| Operating History | 0.7 | 1.3 |
| Transparency | 7.0 | 5.5 |
| Overall | 7.83 | 8.23 |
Products both carry, price for price
| Peptide | Mizan Supplyper unit | Zeptix Labsper unit |
|---|---|---|
| BPC-157Guide → | $3.50/mg | $3.00/mg |
| BPC-157 + TB-500 | $3.75/mg | $5.00/mg |
| Cagrilintide | $8.00/mg | $10.00/mg |
| Epitalon | $3.50/mg | $3.00/mg |
| GHK-CuGuide → | $0.45/mg | $0.40/mg |
| KLOW | $1.10/mg | $0.87/mg |
| MOTS-c | $4.50/mg | $3.00/mg |
| Selank | $3.50/mg | $7.00/mg |
| NAD+ | $0.11/mg | $0.18/mg |
| RetatrutideGuide → | $2.90/mg | $2.83/mg |
| Tesamorelin | $5.50/mg | $5.00/mg |
| TB-500Guide → | $5.50/mg | $9.50/mg |
| TirzepatideGuide → | $1.40/mg | $3.67/mg |
| Bacteriostatic Water | — | $2.00/mL |
How they compare: the verdict
Zeptix Labs takes this matchup by a razor-thin margin, 8.23 to 7.83 on the published formula. Its biggest edge is shipping & refunds, where it scores 10.0 against Mizan Supply's 8.0.
It isn't a clean sweep. Mizan Supply actually edges ahead on transparency (7.0 vs 5.5), so if that factor matters most to you it's worth weighing.
On lab evidence, the heaviest-weighted factor, both Mizan Supply and Zeptix Labs have independently verified third-party COAs, so the gap comes down to the other categories.
Across the 13 peptides both carry, Zeptix Labs is cheaper per unit more often (Mizan Supply wins on 6, 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.
Mizan Supply vs Zeptix Labs: FAQ
Mizan Supply or Zeptix Labs: which is better?
Zeptix Labs takes this matchup by a razor-thin margin, 8.23 to 7.83 on the published formula. Its biggest edge is shipping & refunds, where it scores 10.0 against Mizan Supply's 8.0. It isn't a clean sweep. Mizan Supply actually edges ahead on transparency (7.0 vs 5.5), so if that factor matters most to you it's worth weighing. On lab evidence, the heaviest-weighted factor, both Mizan Supply and Zeptix Labs have independently verified third-party COAs, so the gap comes down to the other categories. Across the 13 peptides both carry, Zeptix Labs is cheaper per unit more often (Mizan Supply wins on 6, 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 Mizan Supply and Zeptix Labs both use third-party testing?
Mizan Supply: 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.
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