Frown line
back to main page
The lion's wrinkle is a vertical furrow or a set of several lines forming in the glabellar area, that is, between the eyebrows and above the bridge of the nose. In medical terminology, it is referred to as a glabellar wrinkle or an interbrow furrow. Initially, it becomes visible when frowning; over time, it may also remain visible on a relaxed face. Its development results from the repetitive work of facial mimic muscles, gradual skin aging, and the effects of ultraviolet radiation. The lion's wrinkle affects the perception of facial expression, giving it a focused, stern, tired, or worried appearance. The choice of correction method depends primarily on whether excessive muscle activity, an established skin depression, photoaging, or the coexistence of several mechanisms predominates.
Frown line - what is it
The frown line is located within the glabellar muscle complex, which primarily includes the corrugator supercilii muscles, the procerus muscle, and the depressor supercilii muscles. Medial fibers of the orbicularis oculi muscle and the frontalis muscle may also contribute to the formation of an individual wrinkle pattern.
Contraction of the corrugator supercilii muscles pulls the eyebrows medially and downward, forming vertical lines. The procerus muscle lowers the medial part of the eyebrows and contributes to the formation of transverse furrows at the root of the nose. The outcome depends on the strength, extent, and relative proportions of activity of individual muscles.
In practice, the following are distinguished:
- dynamic lines, visible mainly during frowning,
- static wrinkles, present also at rest,
- fixed furrows, associated with dermal remodeling and localized tissue loss,
- complex glabellar patterns, including vertical, oblique, and transverse lines.
Clinical assessment should include the appearance of the face at rest and during maximum frowning. The physician also evaluates the position of the eyebrows and eyelids, facial expression asymmetry, the strength of the frontalis muscle, skin thickness, and the presence of eyelid or eyebrow ptosis. Such diagnostics make it possible to distinguish a primarily muscle-dependent issue from permanent damage to the skin structure.
Frown line - why does it form
The primary mechanism is the repeated folding of the skin by contracting facial muscles. Each contraction causes temporary folding of the tissues. Young, elastic skin quickly regains a smooth surface. With aging, its ability to fully smooth out diminishes, and the dynamic line gradually transforms into a static change.
The following contribute to the formation and deepening of the frown line:
- individual anatomy and facial expressions, including muscle mass, the width of their attachments, and the habit of frequent frowning,
- intrinsic aging, associated with a decline in fibroblast activity, changes in collagen organization, and a reduction in the skin's elastic properties,
- UVA and UVB radiation, which intensify oxidative stress and the activity of metalloproteinases that break down extracellular matrix fibers,
- tobacco smoking, which promotes oxidative stress, microcirculation disorders, and collagen degradation,
- chronic skin dryness, increasing the visibility of superficial lines,
- a low amount of subcutaneous tissue in the glabella area, causing the skin to reflect the action of the underlying muscles more strongly,
- genetic predispositions, influencing facial structure, the rate of aging, and skin properties,
- frequent squinting, for example due to uncorrected vision defects or exposure to intense light.
The wrinkle can appear as early as in young adults with highly expressive facial movements. Chronological age is therefore only one of many qualification factors. Muscle activity, skin condition, sun exposure, and the degree of crease fixation are of greater significance.
Daily broad-spectrum photoprotection, properly selected vision correction, reducing smoking, and skincare containing retinoids or other ingredients that support skin renewal can slow down the fixation of these changes. Skincare primarily targets skin quality, whereas muscle activity requires a separate approach.
Frown line - how to get rid of it
Effective therapy should correspond to the dominant mechanism. A dynamic wrinkle requires modulation of muscle activity, whereas a static furrow may require additional skin remodeling. Complete removal of a deep, long-standing furrow in a single procedure can be biologically difficult. A realistic goal is its shallowing, limiting further progression, and preserving harmonious facial expressions.
The most important methods include:
- Botulinum toxin type A. It inhibits the release of acetylcholine at neuromuscular junctions, thereby temporarily weakening the contraction of selected glabellar muscles. Initial changes usually develop within a few days, the full result is assessed later, and the effect gradually fades over the following months. The dose, product, and injection pattern require individualization, as the units of individual products have different characteristics.
- Skin remodeling treatments. Fractional lasers, microneedle radiofrequency, and microneedling initiate a controlled repair response. In subsequent weeks, reorganization of the extracellular matrix and collagen synthesis occur. These methods improve skin texture and density, particularly in the case of set, static lines.
- Chemical peels and exfoliating procedures. Depending on the substance used and the depth of action, they improve epidermal renewal, skin structure, and the appearance of fine wrinkles. Their impact on strong muscle activity remains limited.
- Hyaluronic acid. It can mechanically elevate the base of a deep static furrow. However, the glabellar area is a region with particularly demanding vascular anatomy. Dermal filling carries a risk of vascular occlusion, skin necrosis, and, in rare situations, visual impairment. The procedure requires very strict qualification and a high level of physician experience.
After botulinum toxin, pain, redness, swelling, bruising, headache, eyebrow asymmetry, and temporary drooping of the eyelid or eyebrow may occur. Skin remodeling treatments can cause erythema, swelling, peeling, and temporary hypersensitivity. The choice of procedure is preceded by a medical history regarding diseases, medications, prior treatments, and the current condition of the skin.
Frown line - Botox or filler
In the case of a typical frown line, the first-choice method is usually botulinum toxin, as it targets the primary cause: the overactivity of the glabellar muscles. A filler acts mainly on the result of this process, restoring volume beneath an established depression.
Feature | Hyaluronic acid filler | |
|---|---|---|
Main objective | Reduction of muscle contraction | Lifting the base of an established crease |
Best indication | Dynamic wrinkle | Selected deep static wrinkle |
Onset of results | Gradual | Usually immediate |
Effect on facial expressions | Dependent on dose and technique | Generally without muscle weakening |
Nature of the effect | Temporary neuromuscular modulation | Temporary volumetric correction |
Specific risks | Drooping of the eyelid or eyebrow, asymmetry | Ischemia, necrosis, visual disturbances |
In the case of a dynamic wrinkle, using a filler alone leaves the active mechanism of continuous skin creasing intact. With a deep static crease, botulinum toxin limits further tissue folding, but the smoothing of the established depression occurs gradually and may remain partial.
Combination therapy may include botulinum toxin followed by a later assessment of the need for skin restructuring. Glabellar filling should be considered with extreme caution, following a benefit-to-risk analysis. In many patients, procedures that stimulate skin remodeling are a safer complement to muscle-targeted treatment.
Treatments for frown lines
At Ambasada Urody, procedures addressing various factors in the formation of the lion's wrinkle are available. Their clinical significance and sequence are selected after evaluating facial expressions and the degree to which the furrow has become established.
Treatments targeting the muscular cause:
- botulinum toxin applied in the glabella area,
- premium botulinum toxin with extended action,
- individually planned correction of upper face mimic wrinkles.
Treatments used for established changes in skin structure:
- ablative fractional laser,
- non-ablative fractional laser,
- laser lifting,
- laser resurfacing,
- hybrid laser combining ablative and non-ablative action,
- microneedle radiofrequency,
- Dermapen 4.0 microneedling,
- Dermapen 4.0 with exosomes,
- Dermapen 4.0 Pixel Peel combining microneedling with a TCA peel,
- needle mesotherapy as a therapy supporting skin quality and hydration,
- chemical peels and peels with iontophoresis,
- microdermabrasion and hydrodermabrasion for superficial signs of aging.
Treatment requiring special qualification:
- filling an established furrow with cross-linked hyaluronic acid.
Botulinum toxin constitutes the baseline therapy for an active mimic wrinkle. Lasers, microneedle radiofrequency, Dermapen, and peels play a complementary role, as they improve skin quality but have a limited effect on the strength of the muscles that furrow the brows. Therefore, the most rational plan may involve a staged combination of muscle modulation and skin remodeling. The specific configuration of treatments, device parameters, and intervals between procedures are to be determined during a consultation.
