Pure Health Peptides vs S1Research
Two top US peptide sources scored on the identical published formula: lab credibility, shipping, pricing, operating history, and transparency.
- Pure Health Peptides
- 7.88/10
Pure Health Peptides
- S1Research
- 7.75/10
S1Research
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Factor by factor
- 8.0Lab Credibilityweight 55%8.7
- 8.5Shipping & Refundweight 20%6.0
- 9.1Pricingweight 15%9.5
- 3.3Operating Historyweight 5%1.8
- 5.0Transparencyweight 5%5.0
- 21Certificates confirmed at the lab29
- 2Labs named on certificates2
Show as a table
| Category | Pure Health Peptides | S1Research |
|---|---|---|
| Lab Credibility | 8.0 | 8.7 |
| Shipping & Refund | 8.5 | 6.0 |
| Pricing | 9.1 | 9.5 |
| Operating History | 3.3 | 1.8 |
| Transparency | 5.0 | 5.0 |
| Overall | 7.88 | 7.75 |
Products both carry, price for price
| Peptide | Pure Health Peptidesper unit | S1Researchper unit |
|---|---|---|
| BPC-157Guide → | $3.80/mg | $2.00/mg |
| TB-500Guide → | $4.90/mg | $3.60/mg |
| GHK-CuGuide → | $0.49/mg | $0.31/mg |
| IpamorelinGuide → | $4.70/mg | $2.60/mg |
| Semax | $3.30/mg | $3.50/mg |
| Selank | $4.40/mg | $3.50/mg |
| Sermorelin | $6.50/mg | $3.70/mg |
| Tesamorelin | $7.30/mg | $2.35/mg |
| RetatrutideGuide → | $5.60/mg | $1.50/mg |
| TirzepatideGuide → | $3.63/mg | $1.00/mg |
| SemaglutideGuide → | $3.63/mg | $1.50/mg |
| PT-141 | $2.40/mg | $2.00/mg |
| AOD-9604 | $7.60/mg | — |
| 5-Amino-1MQ | $1.48/mg | $0.94/mg |
| IGF-1 LR3 | $49.50/mg | — |
How they compare: the verdict
Pure Health Peptides takes this matchup by a razor-thin margin, 7.88 to 7.75 on the published formula. Its biggest edge is shipping & refunds, where it scores 8.5 against S1Research's 6.0.
It isn't a clean sweep. S1Research actually edges ahead on lab credibility (8.7 vs 8.0), so if that factor matters most to you it's worth weighing.
On lab evidence, the heaviest-weighted factor, both Pure Health Peptides and S1Research have independently verified third-party COAs, so the gap comes down to the other categories.
Across the 13 peptides both carry, S1Research is cheaper per unit more often (Pure Health Peptides wins on 1, S1Research on 12). The price-for-price table below has the detail, per mg (or per IU or mL for products sold that way).
Pure Health Peptides vs S1Research: FAQ
Pure Health Peptides or S1Research: which is better?
Pure Health Peptides takes this matchup by a razor-thin margin, 7.88 to 7.75 on the published formula. Its biggest edge is shipping & refunds, where it scores 8.5 against S1Research's 6.0. It isn't a clean sweep. S1Research actually edges ahead on lab credibility (8.7 vs 8.0), so if that factor matters most to you it's worth weighing. On lab evidence, the heaviest-weighted factor, both Pure Health Peptides and S1Research have independently verified third-party COAs, so the gap comes down to the other categories. Across the 13 peptides both carry, S1Research is cheaper per unit more often (Pure Health Peptides wins on 1, S1Research on 12). The price-for-price table below has the detail, per mg (or per IU or mL for products sold that way).
Do Pure Health Peptides and S1Research both use third-party testing?
Pure Health Peptides: independently verified third-party COAs. S1Research: 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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