Fig. 7. Effect of test substances on water contents in stratum corneum. Eight groups (G1∼G8) in total were employed for the experiment. G1 was control and G2 was sham control. G3∼G8 were induced with ultraviolet-irradiation; G4 was standard drug (hyaluronic acid) treated. G5 (low dose) and G6 (high dose) were treated with test compound A; G7 (low dose) and G8 (high dose) were treated with test compound B. After 42 days of treatment the water contents in stratum corneum were measured using corneometer. The water contents in stratum corneum were digitally generated by measuring the dielectric properties of the skin. The values were expressed in mean±SEM. ***P<0.001 was considered statistically significant when compared to group 3 values.

Prev Nutr Food Sci 2021;26:425~433 https://doi.org/10.3746/pnf.2021.26.4.425