One of the fastest-growing and most contested areas of the Supplements sector, where scientific credibility is both a key asset and a potential vulnerability. MAI scoring identifies which brands have built genuine buyer trust through quality evidence and authority, not marketing volume, in a category prone to over-claiming.
This directory includes brands that have been independently assessed, benchmarked, or scored using the Market Authority Index (MAI). Brands are listed by MAI score from highest to lowest. MAI Assessed brands have been individually evaluated. MAI Estimated brands are benchmarked against sector data.