$25 biotin beats $270 serums: dermatologists confirm identical results
A woman stands at her Sephora checkout, holding a $270 La Mer serum. Her phone buzzes with an Amazon notification: Nature’s Bounty Hair, Skin & Nails for $25. Research from the American Academy of Dermatology shows identical clinical outcomes for collagen synthesis support. This isn’t about sacrificing quality. It’s about intelligent beauty economics backed by … Lire plus





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