Ultherapy Prime in Korea, Read Through Skin Data

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Prime is the newer Merz Aesthetics model of the same image-guided system. The transducer shows a cross-section of skin, fat and the SMAS, the fibrous layer over the facial muscles, so the operator can confirm contact and depth before firing a row. The aim is more precise placement, and many people find sessions easier to tolerate.

The physics stay the same. Heat lands at 1.5 mm for the upper skin, 3.0 mm in the deeper dermis and 4.5 mm in the SMAS. A face still takes about 30 to 60 minutes after numbing cream, and most people return to normal plans the same day with some redness or swelling.

Nearly all clinical papers on image-guided ultrasound lifting were run on the original Ultherapy system, because Prime arrived later. The energy type, depths and treatment pattern carry over, so those findings are a sensible guide for a Prime session. They are not proof that Prime performs differently, better or worse.

When reading any claim, check which device a study used, how change was measured and how long patients were followed. Instrument readings, blinded photo scoring and patient opinion each tell a slightly different story.

Lee and colleagues reported in the Archives of Aesthetic Plastic Surgery in 2015 on Korean patients with facial sagging treated with micro-focused ultrasound between late 2013 and late 2014. Rather than relying on a doctor's impression, they graded skin with an automatic skin diagnosis system before treatment and at two and four months.

Of 41 people treated, 38 completed follow-up, one man and 37 women aged 37 to 52. Skin grades improved significantly by month two and stayed at that level at month four. The authors noted that the epidermis and dermis showed little injury. Follow-up ended at four months, so the study says nothing about the second year.

Loose skin above the elbow is a common body request. Ramirez and Puah, in a 2021 pilot in the Journal of Cosmetic Dermatology, treated 12 women in one session with Ultherapy using the 4.5 mm and 3.0 mm transducers, then injected calcium hydroxylapatite diluted one to one or one to two just under the skin.

A cutometer, a probe that measures how skin resists suction, tracked firmness. The R0 reading fell from 0.515 mm at baseline to 0.433 mm at 24 weeks, meaning firmer skin, and elasticity and patients' own arm scores improved at every visit. With one arm and no comparison group, the study cannot separate the share of the ultrasound from that of the injection.

Before an Ultherapy Prime Seoul session, agree on what will count as change: jawline definition in side-view photos, softness under the chin, or firmness on the arms. Ask which zones and depths are planned and when the follow-up check is set, ideally two to four months later when collagen has had time to form.

People with heavy skin excess, marked neck bands or a lot of fat usually gain less, and surgery may suit them better. Pregnancy, an active infection or wound on the area, or an implanted device near the zone are reasons to postpone. Common effects are redness, swelling and tenderness; bruising and brief numbness are less frequent.