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Retinol, also called vitamin A 1, is a fat-soluble vitamin in the vitamin A family that is found in food and used as a dietary supplement. [3] Retinol or other forms of vitamin A are needed for vision, cellular development, maintenance of skin and mucous membranes, immune function and reproductive development. [3]
Toxic effects of retinoids occur with both acute or prolonged intake, depending on which retinoid is considered. The specific toxicity is related to the mechanism of action as well as exposure. A medical sign of chronic or acute poisoning with retinol is hypervitaminosis A, which includes the presence of painful tender swellings on the long bones.
Tretinoin, also known as all-trans retinoic acid (ATRA), is a medication used for the treatment of acne and acute promyelocytic leukemia. [8] [9] [10] For acne, it is applied to the skin as a cream, gel or ointment. [10]
Avoid using retinol every day: You don't want to overwhelm your skin with a new ingredient. Some may think it's a better idea to use retinol more often to speed up the purge, but it can possibly ...
Between its abilities to dramatically smooth skin—not to mention help with skin texture and tone, as well as clear up acne—retinol is a superstar ingredient among dermatologists. That said ...
These multiple conversion steps are what make it gentler on the skin. Retinol: The most common form of over-the-counter topical vitamin A products, retinol comes in varying percentages. Those with ...