Research Paper Volume 16, Issue 8 pp 7153—7173
Ferulic acid in synergy with retinol alleviates oxidative injury of HaCaT cells during UVB-induced photoaging
Figure 5. Response surface analysis was used to verify the optimal ratio of FA to VA. (A) 3D response surface model diagram of administrated groups; (B, C) Response surface plane projection of VA and FA.