This is a set of three "COBRUSH" toothbrushes, pursuing "beauty and health." Supervised by a dentist, we developed a "knobbed" beauty toothbrush that can help with facial puffiness and nasolabial folds with daily brushing. The knobs stimulate the salivary glands in the cheeks, promoting saliva production. Pressing from the inside can also be used as an oral massage to combat puffiness and nasolabial folds. The luxuriously used spiral bristles thoroughly remove plaque that is difficult to remove.