Sunscreens work by absorbing most of the sun's rays before they penetrate the skin, but some still get through. Sunblocks such as zinc oxide or titanium oxide block or reflect the sun's rays. Water Resistant sunscreens protect skin for 40 minutes of water exposure. Waterproof sunscreens protect for 80 minutes. Reapply after sweating, swimming or toweling off.
Spray forms are fun for children and are quickly applied to large areas of the body.
Lotions work best on the face. Stick balms are great for lips and ears. These can also be used around the eyes to avoid stinging. Avoid use on infants six months and younger as sunscreens may irritate baby skin. Care should be taken to totally avoid sun exposure during this period.