Goldwell StyleSign Heat Styling Straightening Balm effectively straightens hair for 72 hours, even damaged or coarse hair, while shielding against frizz, humidity, and heat damage of up to 230°C / 446°F. Colour-safe Paraben-free Marine Bamboo Technology for heat and UV protection Shine: 3/3 Hold: 2/5 Who is it for? Medium to coarse hair What does it do? Hold Factor 2 Promotes sleek, straight hair Reduces frizz and fly-aways How do you use it? Work into towel-dried hair Blow-dry and style as desired