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As climate change disrupts the global water supply, every industry needs to reduce consumption. For hair salons, which use thousands of gallons a day, one solution is L’Oréal’s Water Saver, which was unveiled in January and is now being rolled out to salons in free pilots. The system, which attaches to sinks, has three slots for normal shampoos, conditioners, and treatment, which are distributed directly into the water stream. The Water Saver then creates micro-ionized droplets by colliding them together in a highly pressurized stream, creating water particles that are 10 times smaller and reducing overall consumption by as much as 80%. —Ciara Nugent
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