Keratin Complex by Coppola Infusion Keratin Replenisher is a unique formulation with advanced infusion technology incorporates high PH replenishers to automatically open the cuticles and infuse keratin proteins and emollients into the hair. The deep penetrating action repairs and revitalizes hair during blow drying or ironing and closes the cuticle to entrap nourishment. Optimize its use as a daily maintenance to the Keratin Complex Smoothing Therapy Natural Keratin Treatment. The Keratin Complex formula offers the same silky result with its high percentage of keratin which is infused into the cuticle. Its all about the natural keratin, says Coppola. We are able to achieve these results without the formaldehyde in the Brazilian product.