L’Oreal Help Line:
9AM - 5PM EST, Monday-Friday
Wear suitable, disposable gloves. Measure 2.4 fl. oz. of Oreor 30 or 40 Volume Developer depending on the degree of lift desired into a non-metallic shaker or bowl. If hair is relaxed, use 20 volume developer only.
Add entire contents of Excellence HiColor HiLights tube and mix thoroughly until smooth and creamy.
To speed up processing time, use a pre-heated warm (not hot) heat source for up to 15 minutes maximum.
Cool for 5 minutes at room temperature.
Use exclusively with the recommended oxidant, Oreor 40 volume maximum.