Oil based so better result for dry hair. Smooth consistency. Easy application. Can be used on and off scalp
For foiling or where product will not come into contact with scalp, InVision developer 10 vol - 3%, 20 vol - 6% or 30 vol - 9% may be used at a ratio of 1 part lightening paste to 1.5 parts of developer. Timing should not exceed 60 minutes. For on scalp application, InVision developer 10 vol - 3% or 20 vol - 6% at a ratio of 1 part lightening paste to 1.5 parts of developer. The strength of developer should not exceed 20 vol - 6% for on scalp application and timing should not exceed 30 minutes. Check frequently to avoid over processing. It is not recommended to use heat when using the product.
Can cause allergic reaction. A skin allergy test should be performed prior to application. Do not use this product if the scalp shows abrasions or abnormal conditions. Keep out of reach of children.