Here's What Went Down With Mirai Soaps And Body Care After Shark Tank

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It's not often that an entrepreneur gets to go on "Shark Tank" twice, but Koko Face Yoga founder, Koko Hayashi, didn't give up on selling her dream when she pitched her idea for a specialized soap in Season 16. As shared by Shark Tank Global, the Japanese businesswoman appeared on the show for Mirai Clinical, which sold a body wash that claimed to eliminate a specific body odor caused by the compound nonenal, found in elderly people. "So many people in Japan already know that [the] secret ingredient for solving that smelly issue, and I'm here to bring it to the States. Persimmon!" she declared.

Hayashi requested $500,000 for 5% equity in the company, and despite her enthusiasm, the Sharks didn't feel it was a wise investment. Still, Mirai Soaps and Body Care went on to sell products, and according to Beauty Independent, it made over $3 million in 2024. Hayashi estimated a $10 million in sales for 2027. The brand also saw a leap in website visits after the "Shark Tank" episode, but unfortunately, it didn't last. "I really don't know if it's just us, that we're not an attractive business, or if there's less of an impact from 'Shark Tank' in general," Hayashi shared. Although she may not have gotten the expected revenue, the company is still on the market, and customers say the soap is actually helpful for adjusting your shower routine if you're over 40.

Mirai Soaps and Body Care may not have garnered the Sharks' financial investment, but as of January 2026, Koko Hayashi's business is still thriving, with an estimated worth of $14.6 million, per Shark Tank Blog. It's not cheap, with the deodorizing soap selling for almost $23 per bar on Amazon as of this writing, and customers think that, along with getting rid of nonenal, they'll never have to worry about stinky feet again. "No one wants to go through hormonal changes, but we all have to. At least now we can be more comfortable in our skin while we go through it. I know it's very expensive for a soap. But it is worth it. And if you only use it on the parts of the body that the nonenal smell comes from, you won't have to buy it again for a couple of months," a fan wrote on Amazon.

Mirai is also going global, with the company sharing in January 2026, "Our persimmon soap and body wash are heading overseas, making their way to Amazon UK. For our community in England, easier access is coming soon! Keep an eye out on our page for more updates." It looks like even without the Sharks' help, Hayashi is still making sales with her persimmon-based body wash products. It remains to be seen if Mirai holds up against other big-name brands, but it seems there's a demand for getting rid of nonenal, and there is definitely a market with folks over 40-years-old.