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Retinoic acid
Retinoic acid is a noun for a derivative of vitamin A. That is the definition and it's also a sentence for retinoic.
Vitamin A1 acid which is used topically to treat acne
Blindness develops as retinoic acid cannot be converted to retinal, which participates in vision.
Look for ingredients such as retinol, retinal, retinoic acid or retinyl palmitate.