Jamaican Mango & Lime Transition Natural No More Relaxer Thermo Control Serum Trio Kit is a styling system that is designed to help soften, condition, loosen and manage your new growth, as you transition from relaxed hair to natural hair. Thermal control serum will help you maintain the new growth while you grow out your relaxer. Temporarily straightens hair without harsh chemicals, Maximum hair detangling, 1 application lasts up to 2 months.