Collection: HIFU Machine

HIFU Machine: What the "3D / 4D / 5D / 7D" Labels Actually Mean

HIFU (High-Intensity Focused Ultrasound) tightens skin by delivering focused ultrasound energy to precise depths, including the SMAS layer — the same layer surgeons pull in a facelift. The "D" number mostly refers to cartridge technology and line density, not a fundamental difference in the science.

The Depth That Matters: 4.5mm = SMAS

At 4.5mm, HIFU reaches the SMAS layer, triggering collagen contraction for a non-surgical lift. Shallower depths (1.5–3.0mm) tighten the dermis; deeper cartridges (6.0–16.0mm) target body fat. A good HIFU machine covers multiple depths with swappable cartridges.

3D vs 4D vs 5D vs 7D — Honest Take

3D/4D systems use single or double-line cartridges. 5D and 7D systems add multi-line cartridges (more lines per shot = faster treatment) and larger depth ranges. For a clinic, the practical difference is speed and treatment flexibility — the underlying ultrasound science is the same.

HIFU Machine FAQ

Q: How much does a HIFU machine cost?
A: Professional HIFU systems vary widely by cartridge count and depth range. Contact us for a factory quote — prices are not published because configurations differ.

Q: How long do HIFU results last?
A: Typically 12–18 months, because it works by stimulating your own collagen production, which continues for months after treatment.

Q: Is HIFU safe?
A: Yes, HIFU is FDA-cleared for brow lifting and widely used for face and body. Side effects are mild (redness, slight swelling) and resolve within days.

Q: How many HIFU sessions are needed?
A: Most clients see results after a single session, with a touch-up after 6–12 months. Some protocols use 2–3 sessions for stronger lifting.

Q: What is the difference between HIFU and RF?
A: HIFU targets deeper layers (SMAS) with focused ultrasound for lifting. RF heats the skin surface for tightening. Many clinics offer both — HIFU for lift, RF for texture.