Discover how to make cold-process shampoo bars that are easy to create, cost-effective, and provide amazing benefits for your hair. #ouroilyhouse #shampoobars #diyshampoo ...

Shampoo bars are a win-win, as they are environmentally friendly, reduce plastic waste and last longer than the traditional liquid.

We spoke to dermatologists about what qualities the best shampoo bars have and then put some to the test. Our top picks include Lush, Briogeo, and Kitsch.

Here's an ugly fact: over 552 million plastic bottles reportedly wind up in our landfills every year. (And this number just counts for shampoo, not body wash, hand soap, or hair conditioner.) So ...