Bamboo extract is the richest known source of natural silica in the world. Silica (or silicon) is a naturally-occurring mineral found in many foods (primarily vegetables) and water sources. It may support bone growth and collagen production, which keeps your skin and hair healthy. Silica may also promote hair growth. Our Bamboo extract capsules are nothing short of amazing. pullulan capsules shells are used making these amazing capsules vegan & vegetarian friendly. Each capsule contains 350mg of goodness and provides 75% Natural silica.