Mineral and chemical sunscreen became both successful at protecting your skin from the sun’s UV rays, but they both act in different ways.
Mineral sunscreen, also called as physical blockers which contain ingredients like titanium oxide or zinc oxide. (Although, recent study has found that mineral sunscreens may do in addition to blocking UV rays.)
Mineral sunscreen sits on top of your skin and act like a shield to deflect sun rays. It also tends to last a bit longer in direct UV light because this formula is thicker and takes some extra effort to rub in. People with sensitive skin, must use mineral sunscreen instead of chemical sunscreen. Mineral sunscreen tends to be gentler and are often found in baby sunscreen.
Mineral sunscreen usually leave a chalky white cast on your face, which can make them look less desirable.
Chemical sunscreens contain chemicals such as oxybenzone, avobenzone, octinoxate, homosalate and octisalate that absorb and change the UV rays into heat and then release them from the skin. Essentially, they absorb and change light into heat, which doesn’t cause damage.
They are effective in protecting your skin from the sun, and they also allow for major innovation such as they are light weight, feel-good and even invisible formulas. Chemical sunscreens may be easier to rub into the skin and less likely to leave a white cast.
If you have sensitive skin, do not opt for chemical sunscreens as they contain avobenzone which may not suit your skin and also cause allergic reactions.