Best to dampen face and use dampen hands to leather up.

Wet

Wet your face first. I first take off my makeup with makeup removing cloths, then splash my face with water and then apply the Cor soap in the way they instruct, or else I use my ultrasonic with it.

Wet

Wet!

The skin needs to be wet to allow the soap to apply smoothly and to lather.

Yes, I use it with my clarisonic

Yes, I use it with my clarisonic regularly with no adverse effect. Leaves my face feeling super clean.

I wouldn't recommend applying the soap to the brush, since it would use too much of the product too quickly. The Cor bar is not very large. You could easily wet your face, apply the soap with your fingers and then run the Clarisonic over it.