ABSTRACT
Ultrasound is over 20 khz, which represents the upper frequency limit of human hearing. Acoustic vibrations are generated when piezoelectric materials on the thin disc-shaped transducers expand and contract. Although low frequency ultrasound devices have been used widely in the dermatologic area for a long time, the mechanism and side effects have been overlooked. A low-frequency ultrasound device has many benefits on the cosmetic dermatology area by thermal effect, vibration effect, and increase of transdermal delivery of lipophilic drugs or cosmetics. However, there have been reports of dermatitis, dyspnea, dizziness, and burns after treatment with ultrasound. Therefore, the use of this device should be under a doctor's supervision.
Subject(s)
Humans , Acoustics , Burns , Contracts , Cosmetics , Dermatitis , Dermatology , Dizziness , Dyspnea , Hearing , Organization and Administration , Transducers , Ultrasonics , VibrationABSTRACT
An ultrasonic device for medical skin care is used to gently exfoliate the skin of dead skin cells and impurities. Ultrasound waves help loosen and remove oil, dirt and cellular debris from pores. Ponophoresis or sonophoresis is the use of ultrasound to increase percutaneous absorption of drugs, serums, lotions, creams and masques to a depth where it is more effective and beneficial. For improved results and safer procedures, we need to know the contraindications and adverse effects of ultrasonic treatments. Therefore, we summarized and reviewed the issue of safety including contraindications, cautions, and adverse events.