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Two: The ratio I use is 1 ounce of bar soap to 1 cup (8 ounces) of water. So if you’re reusing a 12 oz. body wash container, ...

Evolvetogether is rolling out a dissolvable, zero waste soap bar, $20, in collaboration with ... amenities were being housed in small plastic containers," Sakai said. "We were like, ‘OK, how ...