Zotos Image Maker Thermal Control Exothermic Perm - one application Regulating heat for the Firmest curl with maximum conditioning. Image Maker Thermal control Exothermic Perm helps your create strong, resilient, true-to-rod-size curls on normal, tinted, fine, limp or resistant hair. Gentle, regulating heat assures even processing, leaving hair in beautiful condition. One formula for normal, resistant and tinted (up to 20 vol.) hair. Features: controlled Thermal Waving Action - Penetrates up into hair to create firm, true-to-rod size curls on even the most resistant hair. Fixed Timing - Eliminates any chance of over or under processing, regardless of hair type. Advanced Conditioners - Uniquely formulated to leave hair manageable and soft to the touch. Pleasant Fragrance - leaves hair smelling fresh. No Test Curl. No Dryer Needed.