RF is an abbreviation of Radio Frequency belonging to the beauty technology that uses frequencies for skin care. Based on many years of research, PSI developed a unique home care product to aid the absorption of cosmetic ingredients. Now, skin care using frequencies is possible in the comfort of one's home.
EMS stands for Electrical Muscle Stimulation, which literally means stimulating muscles with electricity. The skin care device developed by PSI uses two pairs of bipolar electrodes to induce twisting vibration on the skin to be smoother with reduced dimpling.