PCJ Smooth Roots Relaxer SuperLusters PCJ Pretty-N-Silky Smooth Roots No-Lye Conditioning New Growth Relaxer Kit, Childrens CoarseIt is the only children new growth relaxer kit. PCJ Smooth Roots is compatible with any relaxer used in the past. Luster’s PCJ Smooth Roots is designed to save mom’s money and touch-up her little girls new growth. When her new growth gets 1/2 to 3/4 inch long, its time for a touch-up. PCJ Smooth Roots straightens and conditions new growth with a triple action conditioner.