'I can't get all of the shampoo to come out of the bottle'," said Bhushan, a professor at Ohio State, and one of the researchers on the study, in a press release.

Zero-waste shampoo Today’s consumers have the ability to replace single-use plastic in many areas of their lives, from reusable water bottles and straws to beeswax food wraps and bamboo tooth… ...

It could be lights out for tiny toiletries. Marriott International, the world’s largest hotel chain, said Wednesday it will eliminate small plastic bottles of shampoo, conditioner and bath gel ...