Only publicly visible evidence
Our recommendations and comparisons are built strictly from evidence a buyer could verify themselves — public COAs, named third-party laboratories, published manufacturing descriptions, and independently confirmable accolades. We do not use private supplier data to justify a public recommendation.
The three-tier evidence model
Every trust signal is classified as Verified (independently confirmed by Kyzen One), Published (self-reported by the supplier and visible on their site), or Not Published. Recommendation ribbons only use Verified evidence; supplier profiles show all three tiers with clear labels.
What we score
Accolades and independent recognitions (40%), Certificates of Analysis and testing transparency (20%), manufacturing quality signals (15%), fulfillment and shipping verification (15%), and editorial completeness (10%). Weights are documented and applied uniformly across all suppliers in the Research Grade Peptides category.
How we handle uncertainty
When evidence is thin, we say so. Recommendation cards show a confidence tier — High (5+ verified signals), Moderate (3–4), or Limited (1–2). When no supplier meets the threshold for a category, the card displays 'No clear advantage' rather than picking a false winner.
Editorial independence
Suppliers cannot pay to alter their score, change their tier, or influence a recommendation. Sponsorship and marketplace features, when present, are labeled distinctly from editorial evaluations.