Expression Lines
The lines that form with movement - and over time, at rest. Understanding why they develop and what drives their progression.
Why expression lines form
Expression lines develop where facial muscles engage repeatedly - when we smile, squint, concentrate, or raise our brows. Initially they appear only with movement. Over time, as the skin's structural support changes, they begin to show at rest as well.
The concern for most clients is noticing that lines have shifted from dynamic - visible only with movement - to static, present at rest. That transition reflects a deeper change in the skin's structure.
The rate at which this occurs is shaped by genetics, sun exposure, skin hydration, and the particular way each person's face moves.
Signs to be aware of
What's happening beneath the surface
The skin's structural integrity depends on two proteins: collagen, which provides density and tensile strength, and elastin, which allows the skin to return to its resting position after deformation. Both are produced by fibroblast cells in the dermal layer.
From the mid-20s, collagen production naturally slows. The collagen that remains gradually breaks down, and the skin's recoil capacity diminishes. When a muscle contracts repeatedly over years - and the dermis becomes thinner and less resilient - the crease begins to remain visible between movements.
The depth of an expression line reflects the extent of this change. Fine surface lines indicate early-stage collagen change. Deeper, more established lines reflect a more significant reduction in dermal scaffold support.
Sun exposure is a significant accelerant. UV radiation degrades collagen and elastin fibres directly and cumulatively. In South Australia's climate, photoageing is often a more significant factor than chronological age.
How we can support you
For clients whose concern relates to skin quality - texture, hydration, and early collagen change - Heather's dermal treatments are often the most appropriate starting point. Skin needling may help support collagen production in the dermal layer. Fractionated RF uses controlled thermal energy to support firmness and texture over time.
For clients seeking to address the muscle movement that contributes to dynamic lines, a nurse-led treatment consultation with Petta or Candice is the right next step. All options are discussed privately at that appointment.
Dermal treatment
Skin NeedlingMay help support collagen production in the dermal layer. Performed by Heather at Largs Bay.
Device treatment
Fractionated RFUses controlled thermal energy to support firmness and texture in the skin's deeper layers.
Nurse-led
Treatment ConsultationFor clients seeking to address the muscle movement contributing to expression lines. Discussed privately with Petta or Candice.
Talk to us about expression lines
Our clinical team will take the time to understand your skin and what's driving your concerns before recommending anything.
Book a Consultation