Stability Vitamin a is sensitive to ultraviolet or oxidation by the air So the compound should be stored in an aluminium container or vitamin e oil Vitamin a is not stable to acid and dehydration of vitamin a results in a dehydrate of vitamin a that is only 0. 4% potency of vitamin aStability • Vitamin A is sensitive to ultraviolet or oxidation by the air. So the compound should be stored in an aluminium container or vitamin E oil. • Vitamin A is not stable to acid and dehydration of vitamin A results in a dehydrate of vitamin A that is only 0.4% potency of vitamin A