Bone Health: Vitamin D3 supports calcium absorption and retention to support optimal bone health.*.Prostate and Breast: Promotes colon, breast, and prostate health by helping maintain healthy blood vessel function, supporting immune cell activity, and maintaining healthy cell metabolism.*.Immune Support: Binds to receptors on immune cells, including lymphocytes and macrophages, supporting healthy immune function.*.Pure Quality: Our supplements are made with only premium ingredients sourced from trusted suppliers and guided by our nutritional experts, then carefully manufactured and tested to verify their potency and purity..Pure Difference: What makes us different isn't just our process or what goes into our supplements - what we leave out matters, too. Pure Encapsulations products are FREE FROM wheat, eggs, tree nuts & peanuts, gluten, artificial colors, flavors & sweeteners, coatings and shellacs, GMOs, and unnecessary binders, fillers & preservatives.