The bar itself isn’t formulated with the same amount of water that gives its liquid counterpart its consistency. From the creation stage, shampoo bars are instantly better for the planet. Being formulated with less water means that there’s a higher concentration of other ingredients in the bar. The cleansers and conditioners can work in their most potent form without being diluted.

The number of uses that you can get from a shampoo bar will depend greatly on how often you wash your hair, how much you’re slathering on with each wash, and how you store your bar in between uses. Don’t leave it in a place that can potentially collect water, instead, allow it to drain and dry before your next use. A shampoo bar means there is one less bottle you’ll need to worry about as they are compact and don’t take up much space. This comes in handy in a variety of situations, from keeping your bathroom cabinets decluttered, to packing for an upcoming camping trip.