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Ulthera vs Thermage FLX: A Fair Comparison

Updated November 2026
Lifting device on a face at Shinebom Clinic in Jamsil, Seoul

The short answer

Ulthera uses focused ultrasound to reach the SMAS layer, while Thermage FLX uses radiofrequency to remodel collagen, so they work by different energy and are often discussed for different concerns. Both are available at Shinebom Clinic in Jamsil, and the doctor decides which suits you.

Key facts

  • Ulthera: Merz, Germany; ultrasound to the SMAS layer
  • Thermage FLX: Solta, USA; radiofrequency collagen remodeling
  • Ulthera areas: double chin, deep cheek, around cheekbones and nasolabial
  • Thermage areas: eye and face wrinkles
  • Repeat: Ulthera at 6 months, Thermage at 6-12 months, if needed

How do the two work?

Ulthera, made by Merz in Germany, is FDA-cleared and delivers focused ultrasound energy to the SMAS layer, the deeper support layer under facial skin. Thermage FLX, made by Solta in the USA, uses radiofrequency heat to remodel collagen in the skin. See the Ulthera device page and the Thermage FLX device page.

Side by side

Point Ulthera Thermage FLX
Energy Focused ultrasound Radiofrequency
Maker Merz, Germany Solta, USA
Target SMAS layer Collagen remodeling
Areas named by the clinic Double chin, deep cheek, around cheekbones, nasolabial Eye and face wrinkles
Repeat if needed At 6 months At 6-12 months

What do they have in common?

Both are non-surgical lifting options and follow the same aftercare notes for lifting devices at the clinic. Avoid cold compresses and cold-water washing for a week. Bruising, swelling, pain and redness settle within 1 to 2 weeks. Contact the clinic if redness or tender blisters remain after 2 weeks. The effect appears gradually from 1 week to 1 month. Avoid alcohol, sauna and hard exercise for a week, and moisturize.

What might the doctor consider?

Your age, skin laxity, areas of concern, skin thickness and goals all matter. Some people have a combination planned. The clinic builds a one-to-one plan, and says it combines devices and injectables per person. More options are on the contour and lifting hub.

How do you decide?

Bring your questions to the consultation. The doctor can examine your face, explain the expected outcome and the risks, and suggest what fits. Treatment prices are quoted after consultation. Related comparisons include Oligio vs Thermage. Neither option is better in general, and which is right is decided at consultation.

Frequently asked questions

Is Ulthera the same as Thermage?

No. Ulthera uses focused ultrasound, and Thermage FLX uses radiofrequency.

Can both be used in one plan?

The clinic combines devices per person. The doctor decides whether and when.

How soon do results appear?

The clinic's notes say the effect appears gradually from 1 week to 1 month. Results vary.

Related pages

General information from Shinebom Clinic, not personal medical advice. Results and recovery vary between individuals, and all procedures carry possible risks and side effects. A doctor will confirm what suits you at consultation.

Bloom yourself, in your own way

Tell us your skin concerns and dates in English. Shinebom Clinic is a 3-minute walk from Jamsil Station, exits 8 and 9.