Fringe DandK Mix is an unflavored powdered blend of water soluble vitamin DandK (making it more absorbable!) to take daily in order to ensure we get enough of these essential vitamins on a regular basis. Vitamin D - water soluble, algae source to regulate immune system function, maintain bone health, decrease inflammation, protect against oxidative stress, and support brain function. Vitamin K - to maintain bone health, regulate blood clotting, decrease inflammation, protect against oxidative stress, regulate glucose + insulin metabolism, and regulate immune system function. Usa made in a Gmp registered facility.