¹Vs ghd original. Results measured by shine on brunette hair compared to naturally dried, lab test.
²Technical test in a lab on wavy hair, vs naturally dried hair
³Extreme heat damage is a fractional wet tensile strength reduction per cycle above 0.005, measured over at least 100 cycles on Brown Caucasian hair (a “Strength Reduction”)
⁴vs naturally dried frizzy hair, dependent on consumer use
⁵vs naturally dried medium brown hair, dependent on consumer use.