“…Different enzymatic mechanisms are then involved depending on the enzyme considered. Several types of knotweed extracts obtained with various extraction methods or isolated compounds can act as antioxidant agents [ 21 , 25 , 29 , 32 , 38 , 39 , 40 , 41 , 42 , 43 ] or skin whiteners [ 24 , 25 , 26 , 44 , 45 , 46 , 47 ] and can facilitate treatments for skin diseases [ 27 , 48 , 49 , 50 ]. Moreover, resveratrol is now an active ingredient broadly used in cosmetology and dermatology [ 51 , 52 , 53 ].…”