Dia Light 10.01

L'Oréal Professionnel Dia Light 10.01 Lightest Natural Ash Blonde—also known as "Natural Iced Milkshake"—is an acidic demi-permanent gloss color specifically formulated to tone, refresh, and enhance color-treated or sensitized hair without ammonia or lift . This innovative formula is powered by a 1% Hyaluronic Acid complex that instantly replenishes lost moisture, providing 1.9x more hydration, 82% glossier color, and a vinyl shine finish .

The 10.01 Lightest Natural Ash Blonde shade delivers a clean, cool, neutralized very light blonde result—perfect for neutralizing unwanted yellow undertones after lightening services or refreshing faded color on lengths and ends. The double-code ".01" combines natural and ash reflects for a balanced, sophisticated finish that eliminates warmth while maintaining a natural look .

Ideal for toning highlights and balayage, glossing services, refreshing faded color, and creating pastel blonde shades, Dia Light offers versatile service opportunities for professional stylists . The ammonia-free formula does not lift hair color, focusing instead on toning, glossing, and refreshing with natural results.

The milky cream texture ensures precision application and even color distribution . Mix at a 1:1.5 ratio (1 tube color to 1.5 parts developer) with DIActivateur 6-vol (1.8%) for soft deposit on blondes, 9-vol (2.7%) for standard tone-on-tone results, or 15-vol (4.5%) for stronger opacity . Development time ranges from 2 to 20 minutes depending on desired intensity, with results lasting up to 6 weeks. Not for grey coverage—please refer to Dia Richesse for white hair coverage .

This product is intended for professional use only. To use, mix 1 tube (50ml) of Dia Light 10.01 with 75ml of DIActivateur Developer at the desired volume, apply to dry, unwashed hair using sectioning techniques, process for 2-20 minutes, then emulsify, rinse thoroughly, and follow with a post-color shampoo. Always perform a patch test 48 hours before any coloring service .