Is S1 Research Legit?
S1 Research has 1 independent COA on file on Merit Verified, with a Merit Score of 37/100 (Limited). This is a limited evidence base; additional independent testing would strengthen confidence. Check the evidence breakdown on this page for the full picture.
Evidence last updated: April 29, 2026
Limited evidence
S1 Research has a Merit Score of 37/100 (Limited). Independent COA evidence is sparse. That does not mean the vendor is fraudulent — it means we have insufficient observable data to assess their testing practices confidently.
- Independent COAs
- 1
- on file
- Distinct labs
- 1
- Freedom Diagnostics
- Median purity
- 99.6%
- HPLC measured
- Latest COA
- Apr 2026
- recently tested
Merit Score
LimitedThe Merit Score is earned from zero through observable evidence only — independent COA volume, lab diversity, median measured purity, and evidence breadth. No vendor pays to influence it; affiliate relationships are disclosed separately and have zero input into the score.
- independent COAs (volume × freshness × lab reputation) +3
- distinct independent labs +8
- median measured purity +23
- evidence breadth +2
- years active +1
Testing labs on file
- Freedom Diagnostics
Lab diversity reduces the risk of results being influenced by a commercial relationship with a single testing lab.
Frequently asked questions
Is S1 Research a legit peptide vendor? +
S1 Research has 1 independent COA on file. That is a limited evidence base; additional testing would strengthen confidence. The Merit Score is 37.
Is S1 Research a scam? +
S1 Research is not scam-flagged on Merit Verified. The registry flags vendors when observable fraud evidence exists (fabricated COAs, community-reported theft, fraudulent domains). No such flag has been set for this vendor.
Has S1 Research been independently tested? +
Yes. 1 independent COA for S1 Research are on file on Merit Verified. A COA (Certificate of Analysis) certifies a specific tested lot. Having a COA on file is not a guarantee that every shipment was tested — it confirms those specific lots were independently verified.
Most recent test on file: April 2026.
What labs does S1 Research use? +
Based on COAs on file, S1 Research has used: Freedom Diagnostics. Single-lab COA histories are common in this market; no independent second opinion exists in this dataset for this vendor.
What purity results has S1 Research achieved? +
Across 1 COA with purity data, S1 Research's median measured purity is 99.57%. This is at the high end of the market, where most vendors cluster between 99–99.9%.
Purity figures reflect HPLC chromatography on tested lots only. They do not screen for residual solvents, heavy metals, endotoxins, or microbial contamination.
Is S1 Research still operating? +
S1 Research is listed as active on Merit Verified , with the most recent COA dated April 2026. Confirm directly with the vendor for current shipping and product availability.
S1 Research
Use code merit at checkout for 10% off.
Affiliate link — Merit Verified may earn a commission at no extra cost to you. Affiliate status has zero input into the Merit Score or this verification report.
Learn more
This page reflects Merit Verified's registry as of the most recent data update (April 2026). Merit Verified has an affiliate relationship with S1 Research — disclosed above and in every community reply. Affiliate status has zero input into the Merit Score or this verification report. Not medical or legal advice.