ONE BY KOSÉ Moisture Improvement Balm-Like Sealing Serum is an advanced Japanese treatment designed to target “deep thirst” — the type of dryness that sits beneath the surface and leads to stiffness, fine lines, and a lack of glow. This luxurious balm-to-serum formula creates a high-retention moisture film that seals hydration deep inside the skin while delivering a surge of concentrated beauty ingredients.
At the heart of the formula is Rice Power® No.11+, Japan’s first approved active ingredient proven to improve both moisture retention and visible wrinkles. This ingredient quickly hydrates the skin surface and penetrates deep into the stratum corneum, helping tiny moisture cells fill and plump the skin from within. The result is smoother texture, reduced dryness, and a visibly more supple, youthful appearance.
Despite its strong sealing effect, the balm feels fresh and surprisingly lightweight. Created with KOSÉ’s unique technology, it glides over the skin without stickiness, leaving it soft, comfortable, and deeply moisturized.
Recommended for:
– Persistent dryness that worsens with age
– Skin that doesn’t stay hydrated even with regular care
– Visible wrinkles, stiffness, or loss of smoothness
– Dullness or lack of healthy glow
The formula carries a refreshing green floral scent and has undergone allergy testing, patch testing, and stinging testing to support gentleness on the skin.
Weight: 1.4 oz (40 g)
Made in Japan