Using the technology of amino acids and charcoal extracts, the Charcoal Relaxing Treatment smooths the hair without damaging or changing its texture. This treatment restores hair resiliency; humidity, rain or sweat will no longer affect your hairstyle. No more frizzy hair! The smoothing treatment can be used on all hair types, including chemically treated hair (coloured, permed, relaxed, highlighted and bleached). It’s excellent for getting rid of curly, frizzy, damaged, unhealthy, dull and mistreated hair.