HIFU uses focused ultrasound energy to target the layers of skin just below the surface. The ultrasound energy causes the tissue to heat up rapidly.
Once the cells in the targeted area reach a certain temperature, they experience cellular damage. While this may seem counterintuitive, the damage actually stimulates the cells to produce more collagen — a protein that provides structure to the skin.
The increase in collagen results in tighter, firmer skin with fewer wrinkles. Since the high-frequency ultrasound beams are focused on a specific tissue site below the skin’s surface, there’s no damage to the upper layers of the skin and adjacent issue.
You may experience slight discomfort during an HIFU procedure. Some people describe it as tiny electric pulses or a light prickly sensation.If you’re worried about pain, you may take acetaminophen (Tylenol) or a nonsteroidal anti-inflammatory drug (NSAID), such as ibuprofen (Advil), prior to treatment.
Immediately after the treatment, you may experience mild redness or swelling, which will gradually recede over the next few hours.