If you find your skin is irritated, breaking out, or just looking dry, drab, or aging, you may want to look into retinol. Retinol is basically a vitamin A derivative that is often used in skincare ...

the skin product you’re using includes a very high concentration of retinol your skin is getting used to the effects of retinol and may become irritated in response to the high rate of skin cell ...

Niacinamide and retinol are both popular skin care ingredients. On their own, each ingredient can help improve skin blemishes and acne, even out skin tone, and diminish the signs of aging. If you ...