Goldwell's StyleSign Straightening Balm delivers instant heat protection for blow-drying or flat ironing—safeguarding your hair at temperatures up to 230°C / 446°F. It instantly smooths and straightens, even on coarse or damaged hair, while providing long-lasting frizz and humidity control for up to 72 hours. The lightweight formula is PETA-approved and helps reduce hair breakage caused by heat styling, leaving your hair sleek, polished, and protected.