Affiliate disclosure

Some links on this site may be affiliate links, meaning we could earn a commission if you buy something after clicking one. It costs you nothing extra.

What that does not buy

An affiliate relationship never determines what a guide concludes. Several guides here recommend against products in categories we could earn from — most of the supplement aisle, and most devices sold for hair growth — because that is what the evidence supports. If a commission and the evidence ever point in different directions, the evidence wins and the link goes.

Where a guide recommends a prescription medicine, that recommendation is a description of trial results, not a referral. We earn nothing from your prescription.