Bone Strength collagen increases flexibility, elasticity and bone density for those suffering with weak or brittle bones. Supporting bone density and growth. Bone strength collagen increases flexibility, elasticity and bone density for those suffering with weak or brittle bone. Bone Strength is a pure collagen. Bone strength collagen is specifically made from bone for bone. It will work to increase osteoblast production. Bone Strength Hydrolysed Collagen Supporting Bone Density and Growth Increasing bone density. Improves bone stability and flexibility Strengthens elasticity in weak or brittle bones Reducing degenerative effects Restoring bone health Stimulating cell growth for bone strength Stimulating osteoblast production for bone growth Supporting bone density tissue.