From: Photostability of commercial sunscreens upon sun exposure and irradiation by ultraviolet lamps
After natural UV exposure | After artificial UV exposure | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Sunscreen | UVA | UVA1 | UVA2 | UVB | UVA | UVA1 | UVA2 | UVB | ||||||||
30 min | 90 min | 120 min | 30 min | 90 min | 120 min | 30 min | 90 min | 120 min | 30 min | 90 min | 120 min | |||||
1 | 0.72 | 0.46 | 0.36 | 0.69 | 0.38 | 0.29 | 0.83 | 0.65 | 0.54 | 0.91 | 0.87 | 0.81 | 0.36 | 0.32 | 0.45 | 0.69 |
2 | 0.84 | 0.76 | 0.75 | 0.83 | 0.69 | 0.67 | 0.86 | 0.92 | 0.97 | 0.86 | 0.92 | 0.97 | 0.63 | 0.53 | 0.88 | 0.89 |
3 | 0.67 | 0.41 | 0.41 | 0.59 | 0.30 | 0.34 | 0.81 | 0.58 | 0.52 | 0.92 | 0.75 | 0.63 | 0.40 | 0.31 | 0.58 | 0.73 |
4 | 0.92 | 0.86 | 0.87 | 0.91 | 0.85 | 0.83 | 0.94 | 0.91 | 0.91 | 0.95 | 0.93 | 0.95 | 0.72 | 0.69 | 0.81 | 0.83 |
5 | 0.96 | 0.89 | 0.85 | 0.94 | 0.87 | 0.83 | 0.99 | 0.95 | 0.93 | 0.99 | 0.99 | 0.98 | 0.90 | 0.88 | 0.97 | 0.97 |
6 | 0.98 | 0.94 | 0.94 | 0.97 | 0.93 | 0.93 | 0.98 | 0.96 | 0.97 | 0.99 | 0.99 | 1.00 | 0.85 | 0.82 | 0.92 | 1.00 |
7 | 0.99* | 1.00* | 0.96* | 0.92* | 0.99 | 0.99 | 1.00 | 0.99 |