Supplement reviews

Every product is scored out of 10 on five criteria, which combine into an overall rating out of 5. Brands can't pay for a review or a higher score.

How we score products

CriterionWhat we check
IngredientsAre the forms well absorbed and free of unnecessary fillers or proprietary blends?
EffectivenessDo the doses match those used in human studies for the claimed benefit?
ValueWhat does the effective dose cost per day compared with alternatives?
TransparencyAre all doses disclosed, and is there independent third-party testing?
SafetyAre doses within upper limits, and are interactions and warnings clearly stated?

All reviews

Example layout

Example Magnesium Glycinate 200

4.3/5

A sample verdict. Summarize in two or three sentences who the product suits, its main strength and its main limitation.

Third-party testedGentle on stomachVegan capsule
Example layout

Example D3 + K2 Softgels

4.0/5

A sample verdict for a D3 + K2 combination. Mention the dose, who it suits and the warfarin caution.

One a dayContains oil for absorption