How we review supplements

1. Label. Form, serving, ingredients and amounts as printed on the Supplement Facts panel.
2. Purpose. What the product is for, in one sentence.
3. Ingredients. For each key ingredient, what studies show and how strong that evidence is.
4. Price and guarantee. Bottle prices and refund terms on the official site on the day we checked.
5. Reputation. Recurring themes in customer reviews and complaints.
6. Regulatory check. FDA warning letters, tainted-product lists and FTC actions for the brand.

A product that fails the regulatory check is not listed.