7-Dehydrocholesterol (7DHC) is a zoosterol that functions a precursor for the biosynthesis of cholesterol and vitamin D3.
Thiamine pyrophosphate, a vitamin B-1 analog, is a coenzyme of transketolase and a coenzyme form of Vitamin B1.
Pyridoxine (also known as Pyridoxol; Vitamin B6), a pyridine derivative, is the 4-methanol form of vitamin B 6 which exerts antioxidant effects in cell model of Alzheimer’s disease via the Nrf-2/HO-1 pathway.
Calcifediol monohydrate (also known as 25-hydroxyvitamin D3; 25-hydroxy VD3) is the major circulating metabolite of vitamin D3 in the blood and is the form that is tested in medicine to determine vitamin D deficiency, namely, the test of 25-hydroxy vitamin D (calcifediol) levels to evaluate how much vitamin D is in the body.
Vitamin K1 (Phylloquinone; Phytomenadione) is a fat-soluble and natural vitamin compound that plays a key role in blood coagulation and bone and vascular metabolism.