HIFU and RF Tightening: Which First and How to Sequence Them

HIFU and RF both stimulate collagen, but at different depths and with different biology — that is exactly why sequencing them correctly outperforms stacking sessions of either.

Different Depth Targets

• HIFU focuses at fixed depths (1.5/3.0/4.5 mm) — reaches SMAS-level structure for lifting architecture
• RF heats broader dermal zones — builds density, texture and sustained collagen network

The Sequencing Logic

1. Start with HIFU when laxity is the chief complaint — set the structural scaffold first
2. Follow with RF courses 2-4 weeks later — monthly sessions fill in dermal density on top of the scaffold
3. Maintain with RF: monthly or bi-monthly; repeat HIFU at 12-18 months, not sooner

Why Not the Reverse?

Doing RF first and HIFU soon after adds little: HIFU\’s structural effect does not depend on prior conditioning, while RF courses compound over months — start the long-lead process early. Platforms: New Doublo 2.0 for the HIFU layer, vacuum RF for the maintenance layer. The 12-month maintenance calendar puts both into one schedule clients can follow.