Keratin Complex Natural Keratin Smoothing Treatment by Coppola is an anti frizz and curls treatment designed to naturally restore hair form. No matter if hair was colored or chemically treated before – average life of effect is 3 months. “It’s all about the natural keratin,” says Coppola. The Keratin Complex formulated with high keratin value that goes right into the cuticle giving silky outcome. “We are able to achieve these results without the formaldehyde in the Brazilian product."