Table 3.
Sun and UVA protection factors of silymarin and flavonolignans.
| Compounds | SPF(290–320) | SPF(290–400) | UVA-PF |
|---|---|---|---|
| SM a | 5.50 ± 0.25 # | 2.49 ± 0.15 # | 1.52 ± 0.10 # |
| SB a | 6.07 ± 0.19 # | 2.62 ± 0.16 # | 1.50 ± 0.11 # |
| DHSB | 3.64 ± 0.19 # | 2.38 ± 0.12 # | 2.90 ± 0.18 |
| ISB | 5.99 ± 0.11 # | 2.52 ± 0.14 # | 1.45 ± 0.13 # |
| SD | 4.35 ± 0.35 # | 2.01 ± 0.19 # | 1.31 ± 0.13 # |
| SC | 5.66 ± 0.14 # | 2.46 ± 0.16 # | 1.47 ± 0.14 # |
| FA | 7.51 ± 0.16 | 5.13 ± 0.28 | 3.36 ± 0.29 |
Silymarin (SM), silybin (SB), dehydrosilybin (DHSB), isosilybin (ISB), silydianin (SD), silychristin (SC). Ferulic acid (FA) was used as active component of sunscreens. a These values were published by Rajnochová Svobodová et al. 2018 [9]. The ethanolic solutions of studied compounds (50 μM) and SM (24.1 mg/L) were used. # Significantly different from FA at p = 0.05.