Playfairii, when shaken with water forms a slight but permanent lather, and on this account is used by the Somali women for cleansing their hair, and by the men to whiten their shields; it is known as meena h¢rma in Bombay, and was formerly used there for the expulsion of the guinea-worm.
In beauty treatments Lemon was traditionally used to whiten skin and teeth, fade freckles and blemishes, and lighten hair.
It relies on the benefits of ultrasound technology built into the brush, paired with specially formulated Emmi-dent "nano-bubble" toothpaste, to whiten teeth.
The product claims to whiten teeth in just 14 days and keeps them white for up to six months.
Moreover, Whiten and colleagues found no evidence that habits vary more between, than within, the three existing chimpanzee subspecies of chimpanzee.