But what exactly is waterless shampoo, and how does it work? Here’s everything you need to know about this wash and how you can incorporate it into your hair care routine. You may want to replace those shampoo bars, stat. While water footprint is at its core, this brand (and many other natural-leaning brands, for that matter) has taken the product development process into account as well. OWA saves energy and plastic production by creating their waterless formula—the powder makes it incredibly lightweight, meaning less electricity and fuel used to distribute the shampoo as well. And because you can pack more shampoo into each bottle (one bottle of Moondust has seven times the amount of washes than an average liquid shampoo) you won’t be buying as many bottles in the first place, which eliminates plastic use even further. While the collection doesn’t have a matching conditioner (yet! Bradt assures us that OWA will be a full hair care line, and “there’s already a conditioner in the works!”), you might not even find it necessary. The shampoo alone promises fluffy, tangle-free hair, even between washes—a considerable feat for a finer hair texture. Overall, we’d consider waterless shampoo a win for sustainable hair care. And while there are already ways to make your shower more planet-friendly (i.e., shampoo and soap bars), this powder formula takes the trend a step further and makes it even more user-friendly and efficacious for our locks. Perhaps the concept of “dry shampoo” will have a totally different meaning down the line.