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NIACINAMIDE OR RETINOL
- ... membranes, and skin. It is also known as retinol because it produces the pigments in the retina ... A is found in two forms in food: Retinol: Preformed retinol is an active form of vitamin ...
- The vitamin A test measures the level of vitamin A in the blood. ... A blood sample is needed . ... Follow your health care provider's instructions ...
- ... contain vitamin A, such as skin cream with retinol in it, can also cause vitamin A poisoning.
- Vitamin A, also known as retinol, is essential to the formation of visual purple in the retina, which allows vision in dim light. Beta carotene, the precursor ...
- ... effects. Supplements in the form of nicotinamide or niacinamide do not appear to cause side effects.
- ... you to temporarily stop taking medicines, such as retinol, which may interfere with test results.