Nigari Leader Nio Kosan Launches Summer-Limited 'umiral' Bath Salt on Amazon

Nio Kosan, the top manufacturer of nigari (magnesium chloride) with a 65% domestic share, has expanded its 'umiral' brand by launching the 'Floral Mint' bath salt on Amazon for nationwide availability. Targeting women aged 20-50 suffering from AC-induced chill, the product features a unique 'cool warming' experience. High-purity nigari keeps the body's core warm for over 15 minutes, while mint provides a refreshing skin feel. The series, which has sold over 100,000 bags and won @cosme awards, is now easily accessible online to support summer wellness routines.