30 Liquid Vegetarian Capsules (SKU BM9189), 60 Liquid Vegetarian Capsules (SKU BM9187) BioSil has been clinically proven in double-blind, placebo-controlled clinical trials. Results are published in prestigious, peer-reviewed medical journals, all with a high citation index. BioSil increases all three beauty proteins: collagen, elastin, and keratin. Collagen: reduces fine lines and wrinkles* Elastin: tightens skin and gives it "bounce back"* Keratin: increases hair thickness and strength, increases nail strength*