L’Oréal Professionnel Dia Light is a permanent hair dye designed for professional use. This 50 ml hair color provides long-lasting, vibrant color and intense shine. It is ammonia-free and perfect for unifying natural hair color or completely changing your look. The pigments penetrate deep into the hair fiber, ensuring a long-lasting color effect and excellent grey hair coverage. This product is intended for professional use only and should be applied according to the included instructions. It offers a long-lasting effect and revives color.