Radiofrequency (RF) energy has been used in aesthetic medicine for over two decades, but not all RF devices are equivalent. EndyMed's 3DEEP technology — multi-source phase-controlled radiofrequency — represents a specific engineering approach that addresses the fundamental limitation of earlier RF systems: the inability to deposit energy selectively at depth without either over-treating the skin surface or under-heating the dermis. Understanding the physics explains why it works differently.
The Problem With Single-Source RF
Conventional radiofrequency devices use a single energy source passing between two electrodes. The energy follows the path of least resistance — which, in skin, is the dermis and epidermis rather than the deeper subcutaneous tissue. This means the surface heats disproportionately relative to the target zone, requiring active epidermal cooling to prevent burns, limiting the depth of effective tissue heating, and making the treatment inherently less precise. Patient discomfort is also higher because of the surface heating involved.
The 3DEEP approach uses six or more phase-controlled RF generators arranged in an array. By controlling the phase relationships between multiple energy sources, the system creates constructive interference at the target tissue depth — the deep dermis and superficial subcutaneous layer — while minimising surface energy deposition. The epidermal temperature remains below the damage threshold while the target zone receives precisely the thermal energy required for collagen denaturation and remodelling.
What Happens in the Dermis
When collagen fibres in the dermis are heated to the target range (typically 60–70°C), they undergo immediate partial denaturation — the triple helix structure contracts, producing an immediate tightening effect. This triggers a wound-healing response in which fibroblasts migrate to the area and begin producing new collagen over the subsequent weeks and months. The result is a dual benefit: an acute tightening effect from immediate collagen contraction, followed by a progressive improvement in skin firmness and elasticity as neocollagenesis occurs.
Clinical data on the 3DEEP system demonstrates a mean contour reduction of 2.9cm (±1.6cm) after six sessions, stabilising at 1.9cm (±2.0cm) at 12-month follow-up — indicating durable results well beyond the treatment course. Measures of skin moisture, elasticity, pore size, and texture all improve relative to baseline. Patient satisfaction in published studies reached 87%.
EndyMed FSR: Fractional Resurfacing
EndyMed's FSR (Fractional Skin Resurfacing) handpiece applies the same 3DEEP technology with a fractional delivery pattern — creating precisely spaced microchannels of ablative RF energy in the skin surface. This combines controlled ablative resurfacing with simultaneous deep RF heating, addressing both surface texture (pores, fine lines, acne scarring) and deep tissue quality in a single pass. A published periocular study — treating the challenging skin around the eyes — demonstrated improvement in moisture, elasticity, wrinkles, pore size, and texture in 15 patients after three monthly sessions, with 87% satisfaction and all adverse effects resolving within 10 days.
FSR is particularly effective for skin texture improvement, superficial pigmentation, enlarged pores, and mild-to-moderate acne scarring. It requires three sessions spaced four weeks apart for optimal results, with some redness and microscabbing in the days following treatment.
Who Is It For?
EndyMed tightening is appropriate for patients with mild to moderate skin laxity of the face, neck, and body who want non-invasive improvement without the downtime of surgical intervention or aggressive resurfacing. It is especially well-suited to patients who are not yet candidates for surgical tightening but want to address early-stage laxity before it becomes more pronounced. At Cosmetica, both the tightening and FSR modalities are available, and Tracy will advise on which is most appropriate based on skin type, concerns, and overall treatment goals.