TABLE 1.
PHOTOPROTECTION FACTOR OF UVA VALUE | PROTECTION GRADE OF UVA (PA) | PROTECTION LEVEL |
---|---|---|
2 or more, but less than 4 | PA+ | Low |
4 or more, but less than 8 | PA++ | Moderate |
8 or more | PA+++ | High |
Source: JCIA/persistent pigment darkening protocol