Clinically Proven ch-OSA®2 in 1 - Generates & Protects Your Own Collagen. Vegan Friendly Supplement. Gluten & Allergen Free, GMO Free, Soy Free, Dairy Free. Biosil's ch-OSA© complex activates your natural ability to generate and protect your own collagen, elastin, and keratin. This improves and supports your hair, skin, nails & joints. What's more, ch-OSA© complex stimulates collagen with your DNA fingerprint. And that is truly unique. Hair, Skin, Nails: Activate your beautifying ability to generate & protect your own collagen. Improve your hair, skin, nails, and joints. Radiate with the self-confidence of a glow you can see, feel & show. Reduces Fine Lines and Wrinkles, Thickens and Strengthens Hair, Strengthens Nails, Promotes Healthy...