Mineral vs Chemical Sunscreen
- Also known as physical sunscreen
- Contains zinc oxide and/or titanium dioxide known as "mineral filters"
- Sits on top of the skin to form a barrier to block UV rays
- Less likely to irritate sensitive skin
- Thicker and whiter in texture which can leave a white cast
- Contains sun filters that absorb UV rays and converts it into heat, which then evaporates from the skin.
- Contains ingredients such as oxybenzone, avobenzone and octinoxate.
- Non-sticky and lightweight in texture without leaving a white cast
- Certain chemical filters may irritate sensitive skin
What does SPF & PA mean in a sunscreen?
SPF stands for Sun Protection Factor, a measure of how well a sunscreen will protect skin from UVB rays, the kind of radiation that causes sunburn, damages skin, and can contribute to skin cancer.
PAPA stands for the UVA Protection Grade and indicates the level of protection from UVA rays, which causes pigment darkening, wrinkles, and sagging.
Protective grade of sunscreen is leveled as PA+, PA++, PA+++, and PA++++ with the more plus sign the more protection from UVA rays.