Mirra professional’s escova de argan perfect liss is a 100% organic hair treatment, free from formaldehyde. This innovative formula works between the cuticles and cortex, preserving cystine bridges while avoiding the hair-sealing effects of formaldehyde. Achieve straight, smooth hair using a hair dryer and flat iron, complemented by the escova de argan bio perfect liss brush to enhance protein deposition and maintain your style longer.