Lorna Vanderhaeghe Collagenplus - Contains silicic acid, which is directly used to make collagen and biotin which is important for healthy hair, skin, nails and bones. Collagen connective tissues run throughout the body and provide structure for your skeleton, tendons, cartilage and muscles. Collagen also plays a critical role in skin health, however collagen decreases as we age. Supplementing with Collagenplus can help with smooth, beautiful, glowing skin; thicker, stronger, healthier hair; strong nails and bones; more flexible connective tissue.