By One Sii Shampoo Serum

This is a new genre of hair care that isn’t a shampoo, oil, or treatment—it’s a booster that transforms your routine. Instead of adding layers of ingredients, it works by removing harmful build-up to restore hair’s natural health. Formulated with mineral-rich volcanic rock, its porous structure absorbs sebum peroxide, one of the main causes of hair damage, leaving your scalp and strands refreshed and balanced. Mix with shampoo in a 2:1 ratio, lather into scalp, leave briefly, rinse, and finish with your regular conditioner or treatment.