Get it between -
L'Oreal Developer Volume is developed for professional use only. Mix L'Oreal Professionnel Oxydant Cream with L'Oreal Professionnel Majirel Permanent Hair Color that best suits the needs, desires, and hair of the client. Use the mixing ratio that best works with the chosen hair color. Once mixed, apply to the hair adjusting the technique to the desired results, and access developing time accordingly. After developing, gently emulsify the product to remove the color from the scalp. Then rinse thoroughly until the water runs out clear and finish by shampooing.
L'Oreal 20 volume developer lifts up to four levels and lightens hair quickly
Instructions:
Always refer to the instructions included. Always combine in the right proportions. Use protective gloves.
Result: Naturally looking hair. It is nourished, regenerated, lightened and shiny.