Emulsi-D3 Synergy™ is a concentrated, highly bioavailable liquid vitamin D formulation offering 2000 IU per 1 mL (one full dropper) along with 250 mcg of vitamin K1 and 25 mcg of vitamin K2. This is a convenient, pleasant-tasting and easily mixable formula. Both vitamins D and K are essential for bone and arterial health, and for maintaining immune function. Vitamins K1 and K2 support the deposition of calcium into the bone instead of soft tissue, such as the arterial walls and kidneys.**