The Goldwell StyleSign Smoothing Serum Spray 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. With up to 85% less hair breakage during styling, no hold and ultra high shine. Warning: Flammable. Do not spray into eyes or an open flame. Benefits: 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