The same four lenses, applied to every product we compare.
Where the product is made, whether the maker operates a verifiable official checkout, and whether the facility claims (GMP, FDA-registered) are stated by the maker.
Label transparency: are doses disclosed, are forms specified, and does the formula rely on proprietary blends that hide amounts.
Per-unit cost across package tiers, what bundles include (bonuses, shipping), and how the total cost compares to typical alternatives in the category.
Length and conditions of the money-back guarantee and how the refund process is handled by the maker.
Comparisons never name-and-shame specific competitor brands with invented data; alternatives are described generically unless we have reviewed them in full.