I have not believed in it, but it works :)

I started in the morning and evening to clean my face.
After 3 days I saw the first improvement.

But not everywhere. The forehead, the device can handle without problems.
Cheeks, nose and chin had burned after about 4 times cleaning rash and it has.
At these points, my skin is just too sensitive to the brush.
But I want indeed actually only improve the end, so I let the rest of the face from easy.

Meanwhile, my forehead is virtually pimple free (can clearly spells not the cleaning brush).

I use the brush sometimes twice, sometimes once a day. Depends on my mood, but the end remains pimple free :) I am absolutely delighted and can only recommend the cleaning brush.

As a small tip: Balea Young Soft & Clear Oil Free Cleansing Gel Acne Prone Skin