Numbuzin No.4 Hydrating Glow Mineral Toner is a revitalizing toner that deeply hydrate and brighten the skin. Formulated with 89% thermal water and five types of hyaluronic acid, this toner ensures your skin stays plump and moisturized. The inclusion of PHA gently exfoliates, smoothing the skin's texture without irritation, while niacinamide works to even out the skin tone and enhance radiance.