Published 13 October 2026 · Reviewed by Dr Sin Yong
Ultherapy is the brand name of micro-focused ultrasound with visualisation (MFU-V), made by Merz Aesthetics and FDA-cleared to lift the brow, lax submental and neck tissue and improve lines of the décolletage. Ultherapy focuses ultrasound so that discrete points of tissue under 1 mm³ are heated to roughly 60 to 70 °C at 1.5, 3.0 or 4.5 mm, the last being the SMAS, while DeepSEE real-time imaging shows the layers to about 8 mm before each line is delivered.
Key facts
Type
Micro-focused ultrasound with visualisation (MFU-V), Merz Aesthetics; the current platform is Ultherapy Prime
Depths
1.5 mm (dermis), 3.0 mm (deep dermis and subcutis), 4.5 mm (SMAS and platysma)
Imaging
DeepSEE real-time ultrasound displays the tissue layers to about 8 mm before each line
Not
Fat reduction, volume replacement or skin removal; it does not treat a full fat pad or a hollow
Illustrative image, not a patient.
Where Ultherapy matters on this site
Ultherapy is ultrasound, so it has no wavelength and no chromophore; it converges sound energy on points at 1.5, 3.0 and 4.5 mm and relies on real-time imaging to confirm the layer before each line. On this site it is one of the two focused-ultrasound platforms Dr Sin Yong performs personally, and the pages below are where it is chosen, compared or ruled out.
Ultherapy earns its place when the SMAS is lax and the volume is still there; it is not a treatment for a hollow face or a full one.— Dr Sin Yong
Ultherapy: the treatment page, explaining the physics upward and what the Prime platform adds.
Comparing lifting options beyond Ultherapy? For most sagging, Dr Sin Yong leads with his own protocols, the VF Lift – Vertical Facelift (monopolar radiofrequency on Volnewmer) and Time Freeze Laser LCLR® (dual-wavelength laser). Both work on your own tissue. Nothing is injected, so there is no filler to overfill, migrate or form lumps. Which one suits you, if either, is decided at assessment.
Not to be confused with
Ultherapy is a brand, and the brand is routinely confused with the class, the competitors and the surgery it is marketed against.
HIFU. The generic class. Ultherapy is micro-focused ultrasound with visualisation; most HIFU platforms deliver similar focal points without imaging. The Ultherapy vs HIFU post explains what imaging changes.
Ultraformer MPT. A CLASSYS focused-ultrasound platform with different transducers and no imaging. Dr Sin Yong uses both; see Ultraformer MPT.
Thermage and Volnewmer. Radiofrequency that heats the dermis as a field; neither places focal heat in the SMAS.
A surgical facelift. Repositions the SMAS and removes skin. Ultherapy heats points within it and removes nothing.
Home HIFU devices. Low-energy handsets with no imaging and no comparable focal depth; the home HIFU safety post covers the concerns.
"Ultherapy" on a price list means the Merz device with DeepSEE imaging; anything else is HIFU and should be named as such.
What decides whether Ultherapy matters for you
Focused ultrasound suits a lax SMAS and dermis in a face that still has its volume. The assessment is built around finding out whether that describes you.
Where is the laxity? Jawline, submental and brow descent from a loose SMAS and platysma are the classic targets; the HIFU suitability page walks through the patterns.
Is volume missing? Heating a hollow face can accentuate the hollow, so Dr Sin Yong maps fat against bone with ultrasound before any lines are planned.
Is volume unwanted? Focused ultrasound does nothing for a full fat pad; the will HIFU melt face fat post explains why it is not a fat treatment either way.
Skin thickness and type. Thin skin over bone, and Fitzpatrick III to V faces, change transducer choice and line placement.
Previous treatments. Threads, filler and biostimulators in the planned zones are imaged first, because they change what is heated.
Dr Sin Yong performs Ultherapy Prime and Ultraformer MPT himself and chooses between them per face; a lax SMAS is the entry criterion, not a wish for lifting.
Where it fits
Ultherapy is the focused-ultrasound device with the longest regulatory history, and Dr Sin Yong performs Ultherapy Prime personally alongside the Ultraformer MPT; as an international KOL invited to share his clinical expertise for CLASSYS, the Ultraformer's manufacturer, he uses both and the assessment decides which fits a face. The Ultherapy page explains the physics upward and what Prime means; the differences in imaging and transducer design, rather than physics, are set out on Ultherapy Prime vs Ultraformer MPT vs Shurink, and the comparison with monopolar radiofrequency on the Ultherapy vs Thermage page. Where the picture is descent plus unwanted volume, his own protocols are weighed instead on Ultherapy vs VF Lift vs Time Freeze Laser. Focused ultrasound does nothing for a full fat pad or a hollow.
Frequently Asked Questions
No. Both are focused ultrasound aimed at the same depths, but Ultherapy is the Merz platform with DeepSEE real-time imaging that shows the tissue layers before each line, while Ultraformer MPT is a CLASSYS platform with its own transducer design and no imaging. Dr Sin Yong performs both personally; the differences are in imaging and transducer design rather than physics, and the assessment decides which fits a face.
Faces whose problem is volume rather than laxity, in either direction. A hollow face can look more deflated after tightening, and a full fat pad is not reduced by focused ultrasound. Heavy skin excess is not retracted by any energy device. Active skin infection, certain implants in the treatment zone and pregnancy are standard exclusions. Dr Sin Yong maps fat, filler and tissue with ultrasound at consultation before advising for or against it.
Ultherapy is one brand of high-intensity focused ultrasound, distinguished by real-time imaging and its transducer design rather than by different physics. The Korean HIFU platforms such as Ultraformer MPT work on the same principle without the imaging.
No. It heats focal points in the SMAS and dermis so collagen remodels and the tissue contracts over months; a surgical facelift repositions and removes tissue. It does not replace volume, reduce a fat pad or remove redundant skin.
References
US FDA 510(k) K260618 — Ulthera System (Merz), 2026: indicated to lift the eyebrow, lift lax submental and neck tissue, improve lines and wrinkles of the décolleté, and improve skin laxity on the abdomen, arms and knees. source
Amiri M, et al. Microfocused ultrasound with visualization (MFU-V) effectiveness and safety: a systematic review and meta-analysis. Aesthet Surg J. 2025;45(3):NP86-NP94. doi:10.1093/asj/sjae228. source
Jones IT, et al. Subsurface monopolar radiofrequency versus microfocused ultrasound with visualisation for neck laxity (n=20). Dermatol Surg. 2017;43(12):1441-1447. doi:10.1097/DSS.0000000000001216. source
A Systematic Review of the Efficacy of Microfocused Ultrasound for Facial Skin Tightening. International Journal of Environmental Research and Public Health (PMC), 2023. pmc.ncbi.nlm.nih.gov
Ultrasound tightening of facial and neck skin: a rater-blinded prospective cohort study. Journal of the American Academy of Dermatology (PubMed), 2010. pubmed.ncbi.nlm.nih.gov
Microfocused ultrasound with visualization: a systematic review of adverse events and risk of subsequent facelift compromise. Dermatologic Surgery (PubMed), 2025. pubmed.ncbi.nlm.nih.gov
Ulthera System 510(k) K072505. U.S. FDA 510(k) Premarket Notification database. www.accessdata.fda.gov
