The glabella — the area between the brows — is driven by a complex of muscles that draw the brows together and downward. Over time, the vertical "11 lines" formed by these movements become permanently etched at rest, lending an unintentionally stern or tired expression.
How Frown Lines Form
The corrugator supercilii, procerus, and depressor supercilii muscles work together to create the glabellar frown. Repeated contraction over years compresses the overlying dermis, eventually producing static lines visible even without muscle activity.
Dynamic Lines
Lines appear only with active frowning or concentration. Treatment at this stage delivers the most complete correction.
Resting Lines
Lines begin persisting at rest between expressions. Still highly responsive to treatment — the optimal intervention window.
Etched Lines
Deep static lines remain permanently. Neuromodulators reduce further deepening; adjunctive treatments may be discussed.
Typical Dose
15–25 units; the glabellar muscles are strong and typically require higher doses than forehead
Duration
3–5 months; often longer than forehead treatment due to higher dosing requirements in this region
Satisfaction
One of the highest-satisfaction treatments in aesthetic medicine — meaningful change, minimal downtime
Treatment Approach
Botulinum toxin is injected into the corrugator supercilii, procerus, and depressor supercilii at carefully mapped points. Placement is planned around your specific muscle anatomy, brow shape, and depth of existing lines.
"Frown line treatment is one of the most consistently satisfying procedures in aesthetic medicine — the change is noticeable, the downtime minimal, and the result natural."
The glabellar complex involves five muscles acting in concert. Accurate mapping of each patient's corrugator origin and insertion is essential to avoid medial brow depression or an unnatural "spock brow" result.
Treatment targets the procerus at the nasal bridge, with bilateral corrugator injections placed at the medial head and body. A conservative approach preserves some medial brow animation.
Males typically require higher doses due to greater muscle mass. Additional injection points at the corrugator tail may be needed to address horizontal brow creases extending laterally.
The aesthetic goal is a strong, flat brow — not the arched elevation seen in female treatment plans.
Injection Depth — Critical Technique
Corrugator injections are placed intramuscularly at moderate depth. The procerus is injected superficially at the nasal bridge. Staying above the supraorbital ridge at all times is non-negotiable to avoid lid ptosis from toxin migration through the orbital septum.
Aftercare Instructions
Remain upright for four hours and avoid lying face-down while the protein settles.
Move the treated muscles — frown and raise your brows normally to assist absorption.
Book your two-week review to assess dose and symmetry.
Exercise strenuously or do inverted poses for 12 hours post-treatment.
Apply pressure or massage the glabellar area — this can cause unwanted migration.
Expose the area to extreme heat (saunas, steam rooms) for 24 hours.