Table 2: Photoprotection activity of F4.

Parameter

SPF

UVAPF

λc (nm)

UVA/UVB ratio

pre irradiation

12 2.3

8 1.4

380 0.5

0.82

post irradiation

15 5.7

8 2.3

378 0.3

0.81

 

 

 

 

SPF = Sun Protection Factor, UVAPF = UVA Protection Factor, (λc) = critical wavelength. Results are expressed as mean standard deviation (n = 27).