Concern

Expression Lines

Reviewed by SkinKnowledgeBase Editorial TeamSources verified May 17, 2026Last updated May 17, 2026
Centered cosmetic illustration of forehead and outer-eye expression lines formed by repeated facial movement.
Expression lines begin as movement-related creases and may become visible at rest over time.

Quick Summary

Expression Lines are wrinkles that appear or deepen when the face moves, such as smiling, squinting, raising the brows, or frowning. They may fade when the face relaxes at first, then become more visible at rest over time. In skincare, this concern is about softening the look of movement-related creases and supporting smoother texture. It is not about stopping facial expression or replacing clinician-led neuromodulator procedures. The useful skincare frame is “less etched and better hydrated,” not “frozen” or permanently lifted.

Causes

Expression lines come from repeated folding of the same skin zones during normal facial movement. UV exposure, dryness, thinning skin support, and reduced elasticity cues can make those folds look sharper. Areas with frequent movement, such as the forehead, outer eyes, and between the brows, often show them first. Because movement is part of the cause, topical skincare has a surface-support role rather than a true muscle-relaxing role. Dehydration can also make shallow movement lines look deeper by reducing surface plumpness.

How cosmetic skincare can help

Cosmetic skincare can help expression lines look softer by improving hydration, smoothing surface texture, and using peptides such as Argireline or Matrixyl consistently. Argireline is best framed as expression-line support, while Matrixyl fits broader firmness and texture support. Daily sunscreen matters because photoaging can deepen visible lines. If the goal is a frozen look, dramatic lift, or correction of deep folds, that belongs in a clinician conversation. A steady routine may still be worthwhile when the target is a smoother-looking, less dry surface.

Evidence

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Concern
Expression Lines
Quick Summary
Expression Lines are wrinkles that appear or deepen when the face moves, such as smiling, squinting, raising the brows, or frowning. They may fade when the face relaxes at first, then become more visible at rest over time. In skincare, this concern is about softening the look of movement-related creases and supporting smoother texture. It is not about stopping facial expression or replacing clinician-led neuromodulator procedures. The useful skincare frame is “less etched and better hydrated,” not “frozen” or permanently lifted.
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