Delighted with the effectiveness of the device after 3 sessions the result was already very good, and after 5 sessions there are only a few discrete hairs here and there (I face, underarms, bikini and legs). I should mention that I made there a dozen years several sessions institute that had left me about 30% of my hair, and I "lucky" to have a clear skin and hair dark. The device is easy to use, but having to reload 1:30 after only 30 minutes of use is very painful! So I have to do it 3 times, that's why I put only 4 stars.