Figure 4.

Inhibitory effects of DK, DDK and labdadiene on collagenase (A), elastase (B), hyaluronidase (C) and tyrosinase (D) activities.

Inhibitory effects of DK, DDK and labdadiene on collagenase (A), elastase (B), hyaluronidase (C) and tyrosinase (D) activities.