What is PA+++ show at the skin care products? one + can last how long?
What is PA+++ for the skin care?
All sunscreen labels list a sun protection factor (SPF). SPF is a measurement of how much protection the sunscreen offers from the UVB rays that cause sunburn. A few sunscreen labels also list a ';PA'; ranking, which refers to the amount of protection the sunscreen offers from the UVA rays that may cause long-term skin damage. PA rankings are listed as PA+, PA++ or PA+++. The more +'s, the more protection from UVA rays.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment