Goldwell StyleSign Heat Styling Smoothing Serum Spray - 100ml Hold Level: 0/5 For styles that turn up the heat without sacrificing the healthy look. Instant heat protection for blow-drying or ironing up to 230°C/446°F1 and up to 72 hour lasting humidity and frizz control. Instantly creates long-lasting, silky-straight hair and eases the gliding of the flat iron while protecting the hair from frizz, humidity and heat damage up to 230°C/446°F Ingredients Trisiloxane, Dimethicone, Alcohol Denat., Caprylyl Methicone, Caprylic/Capric Triglyceride, Himanthalia Elongata Extract, Fragrance/Parfum, Alpha-Isomethyl Ionone, Limonene, Linalool.