The new attention to applicators is helping fuel a striking rise in sales.

WSJ: Clinique Chubby Sticks Are Some New Products Promising Faster, More Precise Makeup

He added that he did not know how much each dose would cost but said the applicators and gel cost "just pennies".

BBC: Scientists say vaginal gel cuts HIV-infections by half

The products, which generally have reusable applicators, would likely pose similar infection risks to mascara, which can sometimes cause eye infections, says Tina S. Alster, a Washington, D.

WSJ: Aches & Claims: Another Wand for When Mascara Isn't Enough

In a demonstration in 55 different corn fields in Missouri over a four year period, the researchers attached the sensors to nitrogen applicators being used by the farmers.

FORBES: Connect

Beauty brands are rethinking the design of applicators that come with their products, whether it's the shape of the tip of an eyeliner wand or the number of bristles on a nail-polish brush.

WSJ: Clinique Chubby Sticks Are Some New Products Promising Faster, More Precise Makeup

Applicators have to be intuitive.

WSJ: Clinique Chubby Sticks Are Some New Products Promising Faster, More Precise Makeup