L'Oréal Dia Light 9.11 Very Light Deep Ash Blonde Hair Color — also known as "Iceberg Milkshake" — is an acidic demi-permanent gloss color formulated to tone, refresh, and enhance color-treated or sensitized hair without ammonia or lift. Enriched with Hyaluronic Acid, it delivers 2x more hydration, 82% glossier color, and 3x less breakage after bleach. The 9.11 shade delivers a cool, sophisticated ash result with intense grey and silver reflects, perfect for neutralizing warm undertones, toning highlights and balayage, and refreshing faded color. The ammonia-free milky cream formula provides precise, even application. Mix 1:1.5 with DIActivateur Developer and process for 2–20 minutes; results last up to 6 weeks. Not for grey coverage. For professional use only.