It's terrible!!! I bought a coupon for a regular ultrasonic cleaning and a mask. In the advertisement, the procedure consisted of 15 stages (including Jacquet massage), in reality there were only 5 stages and no massage. But that's not the worst part. Before that, I had done various procedures and I had never been allergic to anything. After the "usual" anticuperose mask, the cosmetics they use - Demax, the entire skin on the face turned red as after a chemical burn, the face swelled. I went to the hospital by ambulance, according to the results of the examination, I had an allergy due to the unclear composition of the cosmetic product. In the Demax catalog, this mask contains phyto DNA, the components are encrypted of unknown origin. As a result, serious treatment: hormonal injections and ivs. The swelling has gone down, but the redness still remains on the face.