Is it really effective because it is an expensive product?
Is it dangerous to health?
To answer the first question, I would say that we should not be pressed. The efficiency is different depending on the individual and it is not at the first meeting that we see the difference. Polished take longer to grow back after the 3rd session, but do not expect something spectacular. It is work that will be done over weeks or months
It is already targeted to shave part with start flashing, frankly difficult if one does has a same (torso) and not for the back! After that it is difficult to see the part already treated not flash twice.
Be careful to choose the level of intensity of 5. Being suspicious, I put on 3 and I did not feel any pain. After about the seriousness of the company and having read the instructions, there should not be any problem. But it is true that I have some reluctance to treat certain areas, including mole on which I do not flashes.
The "flasher" is rather heavy and not easy to position. It can become very long and tiring if a large area to treat.
The product is recommended as it has demonstrated efficacy after a few sessions and I have not felt adverse effects (pain or redness)!