Common sunscreen myths! 

 Myth: Every sunscreen works the same way, so it doesn't matter what formula you use.

Fact: Chemical sunscreens (avobenzone, oxybenzone, etc.) work by absorbing damaging rays; physical sunscreens (zinc oxide, titanium dioxide) reflect the rays.  Some sunscreens combine both physical and chemical ingredients for more complete protection.

Myth: You should apply sunscreen the moment you hit the beach.

Fact: You're getting sun exposure as soon as you walk outside. If you're using a chemical sunscreen you need to apply about 30 minutes before leaving the house to give the skin time to absorb it. If you're using a physical sunscreen it protects you immediately with application. 

Myth: All sunscreen is effective against damaging UVA and UVB rays.

Fact: Only sunscreens labeled broad-spectrum protect against both types.  Though UVB rays are the ones that give you a sunburn, UVA causes skin aging, and both can increase your risk for skin cancer.  Always choose a sunscreen labeled broad-spectrum. 

Myth: You can get sunburned through a car window.

Fact: Glass effectively blocks UVB rays, so you won't burn, but you still need sunscreen to protect against UVA damage (remember, this is the one that contributes to skin aging).

Myth: SPF 100 is twice as effective as SPF 50.