Is Blue Light Causing Skin Damage? A Dermatologist Weighs In Written by Heidi W. Moore "Prevention is the best medicine: the large majority of skin damage from blue light, and other factors, is preventable by employing simple, daily habits. Sunscreen should be a mandatory part of every morning skincare routine, and using a tinted sunscreen with antioxidants is a simple way to arm your skin with the protection that it needs as you face the day."