Table 2.

Effect of Solar Simulating UV Irradiation of SPF Values of Sunscreens (Photostability of Sunscreens)

	UV(66% UVAand33% UVB) J/cm2
Polyphenols	0	0.15	0.45	3.0	6.0
Benzophenone-3	4.99 ± 0.10	4.38 ± 0.10*	4.18 ± 0.10*	4.20 ± 0.10*	4.19 ± 0.10*
Verbascoside	8.25 ± 0.09	N/D	N/D	8.23 ± 0.12	8.26 ± 0.10
Taxifolin	6.38 ± 0.12	N/D	N/D	6.38 ± 0.12	6.39 ± 0.12
Rutin	5.25 ± 0.13	N/D	N/D	5.25 ± 0.13	5.25 ± 0.13
Silibinin	6.44 ± 0.14	6.41 ± 0.14	6.46 ± 0.14	6.45 ± 0.14	6.44 ± 0.14
Cyanidin	4.93 ± 0.12	4.91 ± 0.12	4.91 ± 0.12	4.94 ± 0.12	4.93 ± 0.12
Kaempferol	4.0 ± 0.15	N/D	3.97 ± 0.15	4.02 ± 0.15	4.1 ± 0.15
Baicalein	3.68 ± 0.15	3.63 ± 0.12	3.62 ± 0.13	3.69 ± 0.12	3.79 ± 0.12
Morin	2.63 ± 0.08	N/D	N/D	2.62 ± 0.08	2.78 ± 0.08
Epicatechin	0.10 ± 0.02	N/D	N/D	0.10 ± 0.02	0.10 ± 0.02
Leontopodic acid	11.83 ± 0.1	11.62 ± 0.22	11.48 ± 0.2	10.64 ± 0.2*	10.1 ± 0.12*
Quercetin	4.31 ± 0.10	3.95 ± 0.20*	3.79 ± 0.20*	3.48 ± 0.20*	3.16 ± 0.20**
Resveratrol	11.98 ± 0.1	4.81 ± 0.20**	4.25 ± 0.20**	4.93 ± 0.16**	4.63 ± 0.10**
Chalcone	8.15 ± 0.14	3.49 ± 0.20**	3.33 ± 0.20**	3.09 ± 0.23**	2.88 ± 0.24**
trans-Ferulic acid	7.34 ± 0.18	5.34 ± 0.09**	3.91 ± 0.11**	3.61 ± 0.13**	3.74 ± 0.17**
Acacetin	4.77 ± 0.10	3.61 ± 0.90*	2.74 ± 1.00**	2.19 ± 0.18**	2.22 ± 0.10**
Chrysin	1.62 ± 0.07	1.24 ± 0.20*	1.32 ± 0.20*	1.17 ± 0.10**	1.17 ± 0.10**

^*p < 0.05 versus no irradiation (0); ^**p < 0.01 versus no irradiation (0).