Expression Lines
The lines that form with movement - and over time, at rest. Understanding why they develop and what drives their progression.
Expression lines form where facial muscles move repeatedly, such as around the eyes and across the forehead. At first they show only with movement, and over time they may become visible at rest as the skin's support changes. Depending on the type of line, options may include skin treatments with Heather Holbrook or a nurse-led treatment consultation with Petta Day RN or Candice McCue RN.
Reviewed by Petta Day, Registered Nurse, and Heather Holbrook, Dermal Clinician. Last reviewed .
Why expression lines form
Expression lines tend to appear first where the face moves most often. Smiling and squinting crease the skin around the eyes, while concentrating or raising the brows creases the forehead.
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 can be a more significant factor than chronological age.
How we can support you
The right starting point depends on what is driving your lines. Where the concern is skin quality and early collagen change, Heather's dermal treatments are often the most appropriate place to begin. Where the concern is the muscle movement behind dynamic lines, a nurse-led treatment consultation with Petta or Candice is the right next step.
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 ConsultationAvailable at both our Largs Bay and Norwood clinics, in a private consultation room.
Expression lines FAQs
What causes expression lines?
Repeated muscle movement folds the skin in the same places many times a day. With age, collagen and elastin gradually decline, so the skin is less able to smooth out between movements. Sun exposure and smoking may speed up this change.
What is the difference between dynamic and static lines?
Dynamic lines appear only when you make an expression, such as smiling or frowning. Static lines are visible when the face is at rest. The type of line helps guide which approach may be suitable.
Can I slow down the development of expression lines?
Daily broad-spectrum sun protection helps protect the skin's collagen from UV damage. A consistent skincare routine and avoiding smoking may also help. Your practitioner can advise on a routine suited to your skin.
How do I know which option is right for me?
Your practitioner will assess your skin and the lines you are concerned about, then explain the options that may suit you, including how many sessions might be involved and the costs. A consultation is required to determine suitability.
Talk to us about expression lines
Book online, or call us on 0403 292 292 if you would like to talk it through first.
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