9 Best Zero Waste Shampoo and Conditioner Bars for All Hair Types

9 Best Zero Waste Shampoo and Conditioner Bars for All Hair Types

Zero waste shampoo and conditioner bars have been around for a hot minute. In fact, they were invented in the late 80s by the co-founder of Lush: Mo Constantine. But zero waste hair care has been growing in popularity due to the state of the planet and the need to do our part to cut…