The vitamin A-based products, including retinol and Retin-A, are used to treat precancerous conditions of the skin, effects of anti-aging, acne and more. "For acne, it reduces the oil gland ...

It wasn’t until the 1980s, when a study published the skin benefits — like softening fine lines and lightening hyperpigmentation — that retinoids got remarketed as “anti-aging.” ...