ProCare Sensi Plus Creme Developer is designed for superior gray coverage and for standard lightening action with all permanent hair colors or lighteners. ProCare Sensi Plus Creme Developer ensures stronger, smoother, healthier hair during and after hair coloring. Mixes easily with any chosen hair coloring product when lightening up to two levels. Available 10, 20, 30 & 40 Volume

Please follow manufacturer's packaged instructions