Retinol is an incredible ingredient that helps increase the rate of skin cell turnover, clear pore congestion, and even boost the production of collagen in the skin! With the increased rate of skin cell turnover, your younger, fresher skin cells are brought to the surface which are more easily prone to damage. UV rays from the sun are said to cause up to 90% of damage to the skin, so using a SPF is essential for protection – especially those fresh cells you’ve worked so hard for.