Keune Hair Straightener with Phyto Keratine (K+) and Silk Protein for extra conditioning. Straightens curly hair, leaving it smooth and manageable. It contains cationactive Phyto Keratin (K+) and Silk Protein, leaving the hair beautiful and shiny. One pack Keune Hair Straightener or Hair Straightener Extra Forte contains a tube of 2.9 oz. Hair Straightener and a tube of 2.9 oz. Fixing Balm. It is not recommendable to use on color, bleached or permed hair, but can be used on all other types of natural hair.