Goldwell Men ReShade Developer Concentrate and Innovative Foam Applicator Bottle: Goldwell Men ReShade Grey Blending Power Shot is a 5 minute color service without ammonia for natural grey blended results APPLICATION: Use with Goldwell Men ReShade Grey Blending Power Shot only. Mixing Ratio: Mix the product in a 1:1 ratio. Using the foam applicator bottle, measure 20ml of Goldwell MEN Reshade Developer Concentrate and add 20ml of Goldwell MEN Reshade Grey Blending Power Shot. Once opened, Power Shots must be used within 48 hours. Do not shake. Tighten the squeezer lid. Then mix the content carefully by swinging the applicator bottle. Start the application immediately. Please dispose of any surplus product. Apply to dry hair. Hold the applicator bottle upright and squeeze on the sides in order to apply the foamy working mass. Apply the mixture generously to whole hair. Distribute evenly and massage thoroughly into the hair. Process without any heat for 5 minutes only. Do not exceed the recommended processing time as the results will become too intense. Once complete, rinse hair thoroughly. Shampoo with suitable Goldwell products (recommend Goldwell Dualsenses for MEN shampoo ) and style as usual. Product Options Available are as follows: Option: Developer / Bottle - Goldwell Men ReShade Developer Concentrate and Innovative Foam Applicator Bottle;