1 vs hair washed with non-conditioning shampoo
2 Vs naturally dried fine hair
3 Frizz lab test using ghd rehab with ghd duet style vs naturally-dried hair.
4 vs. untreated hair.
*Based on ownership of an electrical straightener, 38% of 1540 people surveyed owned a ghd straightener. Brand ownership study conducted Jan-Feb 2024 across straightener brands.