From the manufacturer
You would use it like a toner but it deep cleans. I have very acne prone oily skin and this is the only thing that keeps the oil under control. If I’m not wearing makeup I use it to cleanse my face AM and PM. If I am wearing makeup I wash my face with another cleanser
Hi ! the liquid meant to be blue because of copper ingredient. The picture seems clear but in fact the liquid is blue. you didn’t receive a bad batch
I do not know, but since bioderma is a well-known brand with effective products, it should have been tested based on different methods.