Quest Vitamin D3+K2 60's Contains all 21 amino acids Clinical studies have indicated that

Clinical studies have indicated that biotin is good for nails: it may adjust the cellular arrangement of the nail bed

It contains probiotics

d-Calcium pantothenate

acetyl-L-carnitine

Quest Vitamin D3+K2 60's Contains all 21 amino acids Clinical studies have indicated thatVitamin D3 and K2 work synergistically in the body to regulate calcium metabolism, supporting bone and heart health. Vitamin D3 is necessary for calcium absorption into the blood stream and the synthesis of proteins activated by vitamin K2 that place calcium into the bone matrix. Vitamin D3 is also vital in the synthesis of proteins that are activated by vitamin K2 and bind to calcium to reduce calcium levels in arteries. Perfect combination of D3 &