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Promotional price valid from 10/11/2026 to 12/11/2026.
Limited to existing stock.
L'Oréal Professionnel Dia Light Hyaluronic Acidic Gloss Color Demi-Permanent Hair Dye 9.21 Very Light Iridescent Ash Blonde 60ml delivers immediate hydration and combats dryness for visibly healthier-looking hair.
L'Oréal Professionnel Dia Light Hyaluronic Acidic Gloss Color Demi-Permanent Hair Dye 9.21 Very Light Iridescent Ash Blonde 60ml offers an innovative solution for hair coloring with its advanced formula designed specifically for professionals. This product not only delivers beautiful color results but also treats and revitalizes hair for a healthier appearance.
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In this section we answer frequently asked questions about L'Oréal Professionnel Dia Light Hyaluronic Acidic Gloss Color Demi-Permanent Hair Dye 9.21 Very Light Iridescent Ash Blonde 60ml
The numbers on a hair dye identify its shade. The first number is the level, which shows how light or dark the color is, on a scale from 1 (black) to 10 (lightest blonde), with some brands going up to 11 or 12 for very light blondes. The number after the dot, comma, or slash is the tone, or reflect: most brands use 1 for ash, 2 for iridescent or violet, 3 for gold, 4 for copper, 5 for mahogany, and 6 for red, while 0 means a natural tone. So a 6.3, for example, can correspond to a level 6 (dark blonde) with tone 3 (gold), making it a dark golden blonde. A second tone number, like in 6.34, adds a subtler secondary tone, and a 0, like in 6.60, makes it more intense.
Not every brand uses the same system: the same number can stand for a different tone from one brand to another, and some brands use letters instead. The shade information each brand gives for its own hair dye is always the most reliable guide.