- A Straightening Balm for smooth and straight styles that gives long-term frizz-control and provides heat protection up to 192°F and makes hair resistant to breakage. Goldwell StyleSign FlexProTec Complex: product-specific styling polymers and bamboo proteins create any desired look and help to keep the style natural and flexible. A new, unique elastomer and UV filter in all products help protect the hair from premature color fade, damaging effects of heat styling and UV-light. The hair surface is smoothened to enhance natural shine.
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