Forehead Wrinkles: Causes and the Treatments That Smooth Them

Forehead wrinkles are the horizontal lines that run across your forehead. They form because the forehead muscle (the frontalis) lifts your eyebrows every time you look surprised, raise your brows to see better or express yourself, and over the years those folds stay behind even when your face is relaxed. Sun damage and age-related loss of collagen deepen them.

The good news is that forehead lines respond well to treatment. This guide explains what causes them, how to tell which kind you have, and the treatments that smooth them, from Botox to resurfacing and good skincare.

What causes forehead wrinkles?

• Muscle movement: raising your brows folds the skin into horizontal lines. People who raise their brows a lot, including many with heavy or hooded upper eyelids, tend to develop them earlier.
• Sun damage: UV light breaks down collagen and elastin, the proteins that keep skin firm and springy.
• Age: skin gets thinner and less elastic, so creases no longer bounce back.
• Genetics and skin type: some people simply crease more easily.
• Smoking and dehydration: both make lines look deeper.

Vertical lines between the eyebrows are a different set, called frown lines or “11s,” caused by different muscles. They are often treated at the same time.

Dynamic vs static forehead lines

Treatments for forehead wrinkles

Botox and other neuromodulators

Botox relaxes the forehead muscle so it stops creasing the skin. Botox Cosmetic was FDA-approved for forehead lines in 2017 at a dose of 20 units, given together with the frown lines, because treating the forehead alone can let the brows sit lower. In practice the forehead dose is tailored, and usually falls between 12 and 30 units. Results start in a few days, peak at about two weeks and last about 3 to 4 months. A light, well-placed dose keeps some natural movement. See how long Botox takes to work and how long it lasts.

Forehead Botox needs care if you have heavy or hooded eyelids, because you may be using your forehead muscle to hold your brows up. Too much can make the brows feel heavy. A skilled injector adjusts the dose and placement, and may treat the outer brow to give a gentle lift; read about the Botox brow lift and how injectors avoid a “Spock brow”.

Skin resurfacing and collagen treatments

• HALO and erbium laser resurfacing smooth etched lines and sun damage.
• Morpheus8 RF microneedling builds collagen to soften static lines.
• Sofwave ultrasound can treat the forehead and eyelid area to firm skin and give a subtle brow lift.
• Chemical peels improve fine lines and texture over a series.

Filler

Filler is sometimes used in small amounts for deep, etched forehead lines that remain after Botox, or to restore volume in a hollow forehead. The forehead has important blood vessels, so this is an advanced technique and not a first-line treatment.

Skincare

• Daily sunscreen: SPF 30+ every day slows new lines from forming.
• A retinoid: builds collagen and softens fine lines over months; see our retinol guide.
• Vitamin C and moisturizer: protect and plump the skin; see vitamin C for skin.

Wrinkle patches, facial exercises and “Botox in a bottle” creams may make skin look temporarily smoother but do not relax the muscle.

Cost at Glow Theory

Botox is $14 per unit ($11.90 for members). See our Botox price guide.

Forehead wrinkle treatment in Carlsbad

Our injectors look at your forehead at rest and in motion, check your brow position and eyelids, and recommend a dose and plan that keeps you looking like yourself. See Botox in Carlsbad and Dysport in Carlsbad, or book a visit at our South Carlsbad studio on El Camino Real.