We don't sell supplements.
We score them.
Independent reviews scoring 1003+ products on clinical evidence, third-party testing, cost per effective dose, and label transparency.
How we score →Strongest Evidence
Supplements ranked by the strength of their clinical research. How we rate evidence →
Highest Scored Products
View all →Top-scoring individual products across all supplement categories
Recently Scored
All supplements →Nature Made Vitamin A 750 mcg (2,500 IU)
Nature Made
Nature Made Vitamin D3 50 mcg (2000 IU)
Nature Made
Nature Made Selenium 200 mcg
Nature Made
Kirkland Signature Vitamin D3 50 mcg (2000 IU)
Kirkland Signature
Psyllium Whole Husks
Yerba Prima
Ovasitol Inositol Powder, 90-Day Supply (Canister)
Theralogix
Ovasitol Inositol Powder, 90-Day Supply (Myo + D-Chiro 40:1)
Theralogix
Ovasitol Inositol Powder, 90-Day Supply (40:1 Myo + DCI)
Theralogix
How We Score
Full methodology →Every supplement gets two independent scores: an evidence tier for the ingredient, and an execution score for each product brand.
Evidence Rating
Grades the clinical evidence for an ingredient type - independent of any brand. Assigned per meta-analysis and systematic review data.
Multiple large RCTs and meta-analyses confirm benefit
Several RCTs showing benefit, generally consistent results
Limited RCTs or mixed results across studies
Mostly animal or in-vitro studies; human data weak
No meaningful evidence, or evidence shows no benefit
Execution Score /100
Grades each product brand on four equally-weighted pillars. A high-evidence ingredient can still be sold in a poorly-executed product.