6 important tips on sunscreens

1.  Apply sunscreen to skin 15 to 30 minutes before going outdoors.
2. Use at least 30 grams (enough to fill a shot glass) on the body
3. Check the sunscreen’s expiration date. Sunscreen without an expiration date has a shelf life of less than three years, but if it’s exposed to high temperatures it loses its effectiveness. Never leave sunscreen in a car for this reason
4. Reapply sunscreen every two hours, or after swimming, sweating or towelling off — especially when the sun’s rays are strongest between 10 a.m. and 2 p.m
5. For sensitive skin, look for sunscreen products that only contain the physical sunscreen agents zinc oxide and titanium dioxide, as these are less likely to irritate the skin.
6. Sunscreen should be worn even on cloudy days, as the UV rays penetrate clouds and can still cause sunburn.

from American academy of dermatology