The highly active form of vitamin A is isotretinoin, which you can take orally. It has substantial side effects though, meaning it’s generally only used for severe (cystic) acne.
If you want to think of it as a kind of deficiency you can, but then only your skin is deficient in vitamin A (not the rest of your body).
The highly active form of vitamin A is isotretinoin, which you can take orally. It has substantial side effects though, meaning it’s generally only used for severe (cystic) acne.
If you want to think of it as a kind of deficiency you can, but then only your skin is deficient in vitamin A (not the rest of your body).
How do we know?