Fashion protocol will say not to wear white after Labor Day based on the tradition that Summer is over, BUT – keep wearing your sunblock!
Not only is Summer officially not over until September 20, but because the skin aging effects of sunlight are cumulative year-round, you should wear your sunblock every day. We are advising this sun protection because the ultraviolet rays in sunlight are responsible for 80% of the visible signs of aging on your skin.
When you look for a good, protective sunscreen, be sure it says “broad spectrum” or “full spectrum” and protects against both UVA and UVB. Also, choose a sunscreen that is water resistant (per FDA, manufacturers can’t claim “waterproof” anymore – even for the best sunscreens), and reapply as necessary during the day since perspiration will dilute the protection. And of course, if you go swimming, reapply immediately afterward.
Also remember that ultraviolet light from the sun (UVA and UVB) is invisible, so if it’s a cloudy or overcast day, the harmful rays are still there.