Braun Silk-expert Pro 3 ensures visible hair reduction in just 3 months._ It automatically and continuously adapts to your skin tone to ensure optimal safety and efficacy. 300,000 flashes (+20% vs previous Silk-expert 3) deliver an equivalent of 16 years of treatment. The 3 intensity levels ensure the light adapts to your skin tone.Skin tone varies across your body, so the SensoAdapt? sensor (with UV protection) continuously reads the skin tone and adapts the flash intensity for the safest & most effective permanent visible hair removal.