The Seoul Skin Edit

Field Note

What 'aftercare' really means after Ultherapy

From Wonny · 2026-04-25

Quick AnswerAftercare for Ultherapy isn't about fancy products — it's mostly about not making your face hotter for 72 hours. SPF, no sauna, no workouts that flush your cheeks.

A patient asked me last week if there was a special cream she needed to buy after her Ultherapy. The answer surprised her: not really.

What actually matters in the first 72 hours is heat. Ultherapy works by sending focused ultrasound deep enough to trigger collagen — your skin is already mildly inflamed and warm. Anything that pushes that further (sauna, hot yoga, a long flight in a dry cabin) just slows the calm-down phase. The team at GU Clinic where I sit in on consultations puts it more bluntly: don't make your face hotter than it already is.

The boring list — SPF every morning even if it's cloudy, lukewarm water only when you wash, no aggressive actives (retinol, strong AHAs) for about a week, and no facial massage on the treated area for 7-10 days. That's it. The Korean clinics I work with don't push elaborate aftercare kits because the elaborate kits don't change outcomes.

What does change outcomes: showing up to the right clinic in the first place, asking what cartridge depths they used, and not booking a long-haul flight 24 hours later. The 'aftercare' people search for online is mostly the wrong variable.

If you want me to look at your specific case — what you booked, what they used, what your skin reacts to — the recommendation form is one click away.