There are many reviews mentioning pain; is it really painless?

Yes, CoolSoniq has relatively low pain levels. It dulls the pain sensation of the epidermis while precisely delivering energy to the target layer, resulting in lower perceived pain compared to existing ultrasound lifting treatments. It can be performed without anesthesia cream. However, pain sensitivity varies from person to person, and there may be slight tenderness or discomfort when pressed immediately after the treatment.