Vitamin D3 (also known as Cholecalciferol) is actually a Secosteroid (very similar in structure to a steroid).
The supplemental form is most commonly derived from the oil of sheep's wool (lanolin). It can also be made from fish liver oil.
Vitamin C is ascorbic acid - C6H8O6. Sources of vitamin C are vegetable products; but for a great production vitamin C is man made.
All synthetic vitamin C is made is China, Natrol included.
ultra violet destroys gradually the vitamin c
Vitamin C SS Raju
From hydrogen oxygen and carbon. ^^^^^^^ Dumbpoop
Vitamin C, also folic acid and a little potassium
it contains vitamin C
vitamin c
An apple has both vitamin A and vitamin C.
an apple with no vitamin c
your mums poo
Scurvey lackof vitamin C