Heat Defiant Synthetics are a synthetic fibre that can tolerate heat at low levels. You can use a hair straightener, curler or hair dryer up to temperatures of 170 Degrees Celsius. It’s always a good idea to spray lightly a heat protector to the fibre before using heat. When the fibre starts to look dry and frizzled, applying heat with a heat protector will bring back the fibre to a smooth look again.
Below are the colour charts for Heat Defiant Wigs and hair pieces from Jon Renau. Many of these colours are unique to Jon Renau.