Apply to dry hair. Mixing ratio: 1: 1 (color: Topchic Lotion 3%, 6%, 9%, 12%). For application we use the paint brush or the accessory - Topchic container for applying the paint. Operating time: 30-45 minutes. After the action time has elapsed, we emulsify, shampoo, repeat if necessary and apply the balm or treatment to seal the cuticle. Rinse completely!