Vitamin A (as natural beta carotene) is derived from the plant pathogen, Blakeslea trispora.
Vitamin C (ascorbic acid) is from corn.
Vitamin D3 (cholecalciferol) is derived from lanolin from sheep's wool.
Vitamin E (as d-alpha tocopheryl succinate and mixed tocopherols) derived from soy and succinic acid (no soy allergens or proteins remain in the finished product).
Vitamin K2 (as menaquinone-7) is derived from fermentation of natto (soybeans – no soy allergens remain in the finished product).
The vitamin A (as retinyl palmitate), thiamine, riboflavin, niacin, vitamin B6, folate, vitamin B12 (as methylcobalamin), biotin, zinc, pantothenic acid, calcium, iron, magnesium, selenium, copper, manganese, chromium, molybdenum, choline, boron, and vanadium are synthetic.
Vitamin B12 as adenosylcobalamin is derived via microbial fermentation.
Iodine is derived from potassium iodide (synthetic) and organic Icelandic kelp, Laminaria digitate.
Lutein and zeaxanthin are derived from marigold flower, Tagetes erecta.