2. How Sunblock Works…
Unfortunately, according to many dermatologists, including research from the Division of Dermatology at the University of British Columbia, sunscreen is often used when sunblock is more appropriate.
Sunblock, as opposed to sunscreen, works to physically reflect the suns rays when it’s applied topically over the skin, completely blocking damaging UV rays from piercing the skin. The bottom line when it comes to usage is to remember that sunscreen and sunblock are not one and the same, but used as different forms of sun protection.
3. Sunscreen Ingredients
When it comes to sun-protecting abilities, sunscreen and sunblock are both effective. However each product utilizes a totally different set of chemicals to get the job done.
Sunscreen works to absorb damaging UV rays so they can’t penetrate the skin using ingredients like PABA, or para-aminobenzoic acid. This natural, water-soluble substance is commonly found in many foods in addition to sunscreens.
4. Sunblock’s Protective Elements
In comparison, sunblock products are thicker and more opaque because they incorporate ingredients like zinc oxide or titanium oxide or zinc oxide as the sun shield.
This explains why sunblock isn’t as easy or consistent to smooth over the skin. Research from the American Melanoma Foundation (AMF) claim this thicker consistency is the reason why sunblock is able to physically stop UV radiation from reaching the skin.