The Peptide Index™

Best SS-31 companies

2 companies evaluated using 2 samples the Institute purchased anonymously and sent for independent laboratory analysis. Ranked by Index Score™.

Updated 2 samples tested How we rank →
Institute
Top Rated SS-31

Ranked #1 of 2

Lumen Research Supply

A smaller operation with a narrow catalogue, strong customer contact and above-average product accuracy.

  • 97.7% average purity across 1 sample
  • 98.9% average content accuracy vs. label
  • Most recent sample tested Aug 17, 2026
View full profile Read the lab report
89 Excellent 80–89

Full SS-31 rankings

Scoring methodology →
Rank Company Index Score™ Purity & TestingProduct AccuracyTransparencyFulfillmentCustomer ExperienceValue Samples
1 Lumen Research Supply Excellent 89 999280779191 1
2 NextGen Peptides Excellent 85 918080908684 1

Scores combine six weighted dimensions: Purity & Testing (25%), Product Accuracy (20%), Transparency (20%), Fulfillment (15%), Customer Experience (10%), Value (10%). A company appears here only if the Institute has independently tested SS-31 purchased from it.

SS-31 researchEvidence, mechanism, dosage research and studies Testing databaseEvery published lab report, with full methodology All rankingsOverall and category leaders across the Index

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