Question about Some By Mi Retinol Intense Reactivating

After cleansing, apply a moderate amount to the face as a serum and massage in gently. Best used in the evening; always use sun protection during the day as retinol can make the skin more sensitive to light.

If you are new to retinol, start slowly, for example 2 to 3 times a week, so that the skin gets used to it.