After how many sessions of laser hair removal on face wil give significant results?

6 . You need to target the hair in different phases. All hair removal machines should give you a permanent reduction in hair after 6 treatments. Ps it only works on dark hair (hair containing melanin).
LHR face. Depending on the area(s) being treated (color and density of unwanted hair), the type of laser being used, your skin type and sensitivity/tolerance, or underlying hormonal conditions (pcos is one), you may need as little as 4-6 treatments or as many as 10-12 for permanent hair reduction. Have a consultation to discuss expectations, pre-treatment preparation, post-care and treatment intervals.