Assessment of CRYOBEAUTY MAINS ET DECOLLETE Versus Liquid Nitrogen Cryotherapy, in the Treatment of Solar Lentigines

The intervention lasts up to 6.5 s. The device will be applied on spots \<6 mm which are previously selected by the investigator team.

The intervention lasts up to 3 s. The liquid is stored in well-isolated recipients. Each patient has his recipient to avoid contamination. The investigator applies on spots \<6 mm a small amount of nitrogen liquid.