Mainstream supplement brand, ranked

This category covers large, widely available consumer brands, sold at pharmacies, big-box retail or direct-to-consumer, rather than the smaller research-peptide or telehealth-prescription vendors elsewhere on this site. Most of these entries were compiled from each brand's own public pages rather than a fresh, line-by-line audit, so claims here are generally marked as the brand's own stated position unless otherwise noted.

None of these entries is a recommendation to buy. The goal is to separate what a brand says about itself from what's independently checkable, the same way we treat every other category here.