With its oil-in-gel formula, L'Oréal Paris Preference - 4.26 Cool Violet dyes hair permanently while covering 100% of greys. High-shine reflective dyes maintain the 4.26 shade for up to 9 weeks. This translucent gel produces deep burgundy tones that resist fading despite heavy sweat and humidity.
Key Features
- 9-Week Longevity: Permanent dye formula resists color loss for 60 days. Pigment stays deep through multiple washes.
- UV Shine Protection: Conditioner with Vitamin E and filters blocks sun damage. Prevents violet tones from turning brassy.
- Full Grey Coverage: Permanent pigments saturate white hair strands from root to tip. Color remains uniform across all textures.
- Oil-in-Gel Formula: Translucent base mixes with reflective dyes for multidimensional results. The gel stays in place during application.
Frequently Asked Questions
How long does L'Oréal Preference 4.26 last?
This permanent dye maintains its pigment for 8 to 9 weeks. The Shine Protect conditioner helps lock in color against daily wear.
Is L'Oréal 4.26 suitable for dark hair?
The translucent gel formula works best on light brown to dark brown hair bases. It produces deep burgundy tones without needing pre-lightening.


































































