Goldwell - Stylesign - Straightening Balm 100mlGoldwell Stylesign Straightening Balm smooths damaged or coarse hair for up to 72 hours, protecting it from frizz, humidity, and heat damage up to 230C. Goldwell Stylesign Straightening Balm offers heat protection up to 230C and controls frizz and humidity for 72 hours. It smooths coarse or damaged hair while reducing breakage during styling. Apply to towel dried hair, then blow dry and flat iron if needed.