The treatment protocol for white, red, grey, and blonde hair is different than the treatment approach for dark hair. Multiple passes are required at maximum RF energy setting in order to disable these follicles. Patients may achieve noticeable reduction in the amount of apigmented (fair) hair with 8-12 treatment sessions. There is a higher non-response rate with these hair types when compared to darkly pigmented hair (3-6 treatment sessions); approximately 3 in 10 patients may not have any reduction in blonde hair. These non-responders should be identified after the 3rd treatment as evidenced by no extrusion of treated hairs by 1 month following the 3rd treatment session. Coarse white, red and grey hair seems to respond better than fine blonde peach fuzz.
The average number of treatments is 4 to 6 to achieve satisfactory clearance, but some patients may require more or less. Men’s backs and chests, facial hair and hormonal hair take more than the average number of sessions, usually 8+.