Avo Complex
*If the hair is already dry add Avo Complex to boost the moisturizing effect of NOD without creating a barrier to colour absorption
*If your client has sensitive skin and finds colouring uncomfortable on her scalp, add Avo Complex to the colour to protect the scalp
*If the skin stains easily use a thin layer of Avo Complex around the hairline to prevent excessive skin staining
A bit about the science behind peroxide developers