Scalp sunscreen does not differ from normal sunscreen. An effective sunscreen protects skin from sun damage the same way regardless of whether that skin is located on the face, scalp, neck or body.
Sunscreen is vital and keeps the sun's harmful rays from burning skin. Wearing sunscreen prevents signs of aging and skin cancer. Not all sunscreens are formulated correctly, so knowing what to look for in a sunscreen is mandatory. Effective sunscreen has a sun protection factor of at least 25 and offers broad spectrum protection, meaning it blocks both UVA and UVB light. Ingredients that are common in quality sunscreens include avobenzone, titanium dioxide, zinc oxide, salicylates and oxybenzone.
Choose sunscreens with Skin Cancer Foundation certifications that are tested regularly to maintain quality and effectiveness. A shot glass amount of sunscreen is needed for the face to get full protection.