¹no thermal hair damage detected after 100 cycles of 4 passes on thoroughly towel-dried hair.
²technical testing vs naturally dried hair, dependent on consumer use
³consumer testing, 148 women, July 2023.
⁴technical test in a lab on brunette hair, measured vs naturally dried hair
⁵When used with ghd duet blowdry, vs. naturally dried hair
⁶Vs. ghd original. Results measured by shine on brunette hair compared to naturally dried, lab test.