LDM (local dynamic micro-massage): what the term means
Medically reviewed by Dr Sin Yong · Last reviewed · 3 min read
Published 13 October 2026 · Reviewed by Dr Sin Yong
LDM (local dynamic micro-massage) is a non-thermal, dual-frequency therapeutic ultrasound method in which two megahertz frequencies, typically 3 MHz and 10 MHz with a 1 MHz option on some handpieces, alternate rapidly to create a micro-massage within the dermis rather than sustained heat. LDM is used for dehydrated, sensitive or reactive skin and for recovery after laser or injectable treatment. It does not lift or tighten the face as HIFU does.
Alternating 3 MHz and 10 MHz; 1 MHz option on some handpieces
For
Dehydrated, sensitive or reactive skin; recovery after lasers and injectables
Not
Lifting or tightening; LDM is a maintenance and support treatment, not a corrective one
Where it fits
LDM is the gentlest ultrasound on this site and the one most often confused with the most aggressive. The LDM facial page explains the three phases of a session, who benefits and why it is done at physician level: in Dr Sin Yong's clinic it is an adjunct for reactive skin and a recovery step after lasers, not a stand-alone correction. The contrast is with HIFU, which converges ultrasound at set depths to heat small points to roughly 60 to 70 °C for lifting; LDM keeps the tissue cool and works by mechanical agitation. The two share a physics textbook and nothing else. The lifting class is defined under HIFU.
Frequently Asked Questions
No. HIFU focuses ultrasound to heat small points at set depths for lifting. LDM alternates two megahertz frequencies to micro-massage the dermis without heating it, for hydration, barrier support and recovery. It does not lift.
For dehydrated, sensitive or reactive skin, and in the days after laser or injectable treatment to help the skin settle. On its own it is a maintenance treatment rather than a corrective one.
