As stated before we advise you start low and progress up in strength. If your skin is dry or sensitive start with the lowest GEL formulation (DSADERM Reti-Soothe Gel). It has a non greasy moisturizing property. We would also recommend that you use your retinol only MWF nights and use a moisturizer such as DSADERM Extreme Moisture Lotion/Cream overtop to avoid dryness. You would alternate evenings with an anti-oxidant. If your skin is combination, oily, or acne prone you would choose the Reti-1 Serum. If you have oily skin but experience any dryness or wish to moisturize you would choose oil free DSADERM Rejuvenating Moisture Enhancer or DSADERM Aqua-Moist Lotion to apply over your serum retinol. FYI- Retinols also reduce acne! These products are fragrance and preservative free!
SIZE GEL- 1oz