The Supplement Compare earns a commission when you buy through some links on this site, including Amazon Associates links. As an Amazon Associate we earn from qualifying purchases.
This commission comes at no extra cost to you - the price you pay is the same whether or not you use our link.
This never affects our scores or rankings. A product's score is calculated the same way whether it converts to a sale or not, whether it is a Prime-eligible listing or not, and regardless of the commission rate it happens to pay. Our Methodology page explains how scores are actually built.
Where a product has no available affiliate link, it is still eligible to be listed, scored and compared - we do not omit products because they don't earn us a commission.