Casting gloss

Start by matching your current color level and undertone to the shade family you want. Casting gloss from L’Oréal Professionnel offers Deep Black, Light Brown, Ashy Blonde, Mahogany tones, and more, so pick a shade that complements your base color and whether you want a cool or warm result. Decide if you prefer an gentler, no-ammonia option or a traditional gloss for slightly more lift, then consider your maintenance expectations. Finally, select a shade name that reflects the look you’re after, such as Deep Black, Ashy Blonde, or Gloss Auburn.

Undertones determine the final hue, so always pick a shade that flatters your skin and natural hair undertone. For example, ash tones create cooler results like Ashy Blonde, while mahogany and golden tones give warmth such as Mahogany Golden Light Brown or Gloss Auburn. Read the shade names as a guide to undertones and, if in doubt, perform a strand test to see how the color interacts with your current color.

Beginners should choose a simple, natural shade and follow the kit instructions closely. More experienced users can experiment with bolder tones and plan for precise timing and strand tests to predict the result, using shades like Deep Black or Gloss Auburn for stronger effect.

Always perform a patch test and a strand test before full application. Follow the product’s mixing and timing guidelines, wear gloves, and use a color-safe shampoo and conditioner after coloring to protect the shade and extend its life.

If your hair is darker than the target shade, expect a subtler lift and potentially warmer results; lighter bases will show the shade more vividly. Use a strand test to preview the outcome on your own hair before applying it across your head.

For sensitive scalps or a gentler experience, opt for the no-ammonia Casting Creme Gloss option, which tends to be easier on the scalp. If you’re aiming for more pronounced lift or longer-lasting color, a traditional formula may suit you better, but always weigh comfort and results with scalp sensitivity.