Joint Health With Avocado Soy Unsaponifiables (ASU) Supports Healthy Joint Function Helps Protect Existing Cartilage May Help Build New Cartilage Dietary Supplement Non GMO GMP This Product is Suitable for Vegetarians and is Gluten Free With MenaQ7 A joint is the place where two bones are connected. The bones are covered with a layer of slippery cartilage, which enables them to glide against each other seamlessly. Unfortunately, as we age, the cartilage begins to wear out. Clinically validated ingredients in Cartilast help protect existing cartilage and may also help build new cartilage. Cartilast features ASU, one of the most effective natural ingredients for cartilage health, plus ample potencies of vitamin K2 as MenaQ7, vegan vitamin D3, and the mineral boron.