).The participants’ eyes were covered with suitable goggles. Hair laser removal using Nd:Yag wavelength is universally agreed upon to be safest for ethnic skin individuals where hair laser removal using Alexandrite wavelength is thought to be the superior among the current technology. A larger spot size offers not only the advantage of faster treatment, but also additional safety and efficacy. To calculate hair reduction, the difference between the hair count in 1-cmSecondary end points included hair reduction based on counting with the commercially available device (Visiomed AG), a visual analog scale (VAS) score for pain, and the occurrence of adverse effects such as scarring, blistering, erythema, hyperpigmentation, hypopigmentation, or secondary infection during the follow-up visits.In every session, the amount of pain produced by the laser treatment was expressed by the participant and recorded on the VAS with a range from 0 (no pain) to 10 (unbearable pain). Rao A longer treatment may also increase discomfort and a need for topical numbing The hair density within the radius of 1 cm around the marked areas was calculated using a commercially available hair counting device (Visiomed AG, Bochum, Germany) and special software (Visiomed AG). Two investigators (S.K. Hi ,thanks for the question.The cost of the laser treatment varies from one body area to another.The type of machine used (IPL dioide,NDYAG).  CFarinelli Methods The trial was conducted in accord with the ethical principles provided by the Declaration of Helsinki and also the principles of Good Clinical Practice.To select the target areas for laser therapy, the middle point of the connecting lines between the lateral condyle of the femur and lateral malleolus and between the medial condyle and medial malleolus of both legs were marked with a felt-tip pen. There are several lasers for hair removal available. The ethics committee of the Center for Research and Training in Skin Diseases and Leprosy approved and monitored the trial, which was conducted at the Behsima Laser Center, Tehran. The assessors counted the hairs within the targeted area using computerized high-magnification photographs. An intensive pulsed-light device uses filters to limit its use to a specific portion of the spectrum.Volunteers of both sexes were included if they were 16 to 50 years of age at the time of enrollment in the trial. Alster  CNewman  TAnderson Hair counting by means of digital photographs and the commercially available device (Visiomed AG) was chosen for this trial. and M.N.K.) Hi Hinder. The 4 areas (the medial and lateral parts of both legs) were exposed according to a computer-generated randomization list for a single shot of each of the following laser systems in each session:A 755-nm alexandrite laser (Gentlelase; Candela Corporation, Wayland, Massachusetts) with a spot size of 18 mm, fluence of 20 J/cmA 755-nm alexandrite laser (Gentlelase) with a spot size of 12 mm, fluence of 40 J/cmA 1064-nm Nd:YAG laser (GentleYAG; Candela Corporation) with a spot size of 12 mm, fluence of 40 J/cmA 1064-nm Nd:YAG laser (GentleYAG) with a 12-mm spot size, fluence of 40 J/cmAll treatments were administered to the identified treatment areas by 1 of 2 operators (S.M.D.  SLi As spot size increases, a lower percentage of the delivered light energy scatters outside of the treatment area, increasing the depth of pentration, and allowing a lower energy setting to be used for treatment. No one laser is ideal for every individual.