
| Shade | 400 Brown |
| Colour Duration | Up to 28–32 Shampoos |
| Coverage | First grey coverage, up to 70% grey |
| Key Actives | Glycolic Acid (10% Gloss Complex), No Ammonia |
L'Oréal Paris Casting Crème Gloss in shade 400 Brown is an ammonia-free semi-permanent glossing colour. The new formula enriched with a 10% Gloss Complex containing Glycolic Acid delivers natural-looking brown tones with visible shimmering reflections, up to 3x glossier and 4x silkier hair — lasting up to 28–32 shampoos.
- ✔ Ammonia-Free Formula: A pleasant-smelling, gentle colour that is ideal for first-time colouring, grey blending, and colour refreshing.
- ✔ 10% Glycolic Acid Gloss Complex: Seals the hair cuticle for long-lasting, mirror-like shine and visibly healthier hair after every use.
- ✔ Natural-Looking Brown Tones: Delivers rich, natural 400 Brown colour with visible shimmering tones that complement your base.
- ✔ Grey Blending: Seamlessly blends first greys and covers up to 70% grey hair for a natural, no-root-line finish.
- ✔ Colour Lasts up to 32 Shampoos: Semi-permanent formula fades naturally and gradually without a harsh regrowth line.
- 01Perform a patch test 48 hours before use — colour-safe, always.
- 02Pour the colourant crème into the developer bottle, close with the applicator tip, and shake well.
- 03Apply the mixture to damp hair, working from roots to lengths and ends. Leave on for 20 minutes.
- 04Rinse thoroughly, then apply the included Glycolic Acid Glossing Mask. Leave briefly, then rinse again.


