A category defined by intense competition and acute consumer scepticism, Supplements brands must work harder than most to establish and maintain market credibility. The MAI framework identifies which brands have earned genuine buyer trust through quality signals and transparency, separating high-authority challengers from commodity players in a low-trust environment.
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.