Frown lines take their name from what they evoke visually: the vertical furrow that appears between a lion's eyes when it stares or prepares to charge — an expression of intense attention or warning. In humans, the same mechanism carves them: years of furrowing the brow through concentration, irritation, or squinting against the light. Kobido, the Japanese facial massage I practise, cannot erase a well-established frown line, but it can release the muscles that draw it (the corrugator supercilii and the procerus, the small muscles responsible for pulling the brow inward), support a forehead that feels less locked, and help the area recover a measure of softness. It is a slow, gentle approach to the underlying tension — not a shortcut for those looking for immediate erasure. Here is how I work this area, and what you can reasonably expect.
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Frown lines never appear in isolation. They are the visible trace of a muscular pattern that has been at work for years.
Two muscles do most of the carving. The corrugator supercilii — two small muscles sitting just above the root of the nose, between the eyebrows — and the procerus, a vertical muscle along the bridge of the nose. Every time you knit your brows in concentration, in mild displeasure, or when squinting against bright light, these muscles contract and fold the skin vertically. Repeated thousands of times across years, the contraction leaves a mark in the skin itself. That is what shows up between the brows as the so-called "11 lines" or glabellar lines.
Several modern habits speed this along. Screen work that quietly pushes you to narrow your eyes; stress that keeps the forehead clenched without you noticing; jaw tension and bruxism that climbs up into the brow; uncorrected vision that has you squinting for hours. Many of my clients discover during a session how permanently engaged their forehead has been.
That layer of held tension is precisely where manual work earns its place. The focus is less on the line itself than on the muscular pattern beneath it: before a crease is fixed into the skin at rest, there is often room to soften the tone that keeps drawing it.
A small map of facial wrinkles
Frown lines belong to the family of expression lines (sometimes called dynamic wrinkles) — those that form from repeated muscular contractions. They have several close neighbours, and the names get mixed up:
- Forehead lines: horizontal creases across the upper forehead, drawn by the frontalis muscle (every time you raise your eyebrows).
- Frown lines (glabellar lines, the "11 lines"): vertical creases between the eyebrows, drawn by the corrugators and the procerus.
- Crow's feet: the fan of lines at the outer corner of the eyes, drawn by the orbicularis oculi (smiling, squinting).
- Nasolabial folds: the creases that run from the wings of the nose down toward the corners of the mouth.
- Marionette lines: the lines that run from the corners of the mouth down toward the chin.
For a more anatomical overview, this clinical reference on the facial expression muscles gives useful context on the architecture beneath these lines.
What Kobido can do for the forehead
Kobido is not meant to erase a frown line that has been carved into the skin. But on the forehead and the glabella, several things happen during a session, and their cumulative effect can be noticeable over time.
Releasing the muscles that draw the line. The corrugators and the procerus, like any other muscle, can become hypertonic. Precise manual work can bring them back toward a resting tone. When a muscle stops pulling on the skin all day long, the crease it holds tends to appear softer — particularly when the face is at rest.
Supporting skin quality across the area. The microcirculation lift during a Kobido session can help the forehead skin recover some of its glow and suppleness. The forehead is often one of the first areas to look tired in clients who carry heavy mental loads.
Caring for the area before it marks more deeply. On a forehead that is not yet strongly etched, regular work can support an area that stays softer and less clenched. There is no absolute guarantee — frown lines also depend on genetics, on your own particular way of holding expression, and on lifestyle.
And — perhaps the most useful of all — bringing a real relaxation to the face as a whole. Many of my clients tell me when leaving: "I had no idea I was holding so much tension up there." That awareness alone can change the way they inhabit their forehead in everyday life. Research on non-invasive work in this region is even starting to appear: a randomised controlled trial published in 2025 looked at facial and body acupuncture on glabellar lines and noted measurable softening. It is not Kobido, of course, but it is a useful reminder that targeted, non-surgical work around the glabellar area can be studied and measured.
How I actually work this area
On the forehead and glabella, my work runs around five to eight minutes per session, spread across several passes.
Deep horizontal smoothing from the centre of the forehead out to the temples. This releases the frontalis muscle as a whole — almost always involved in forehead tension, even when the client wasn't aware of it.
Targeted work on the corrugators. I locate the two small muscles between the eyebrows precisely, and I work them with slow, measured pressure — never with force. This area is often very sensitive in people used to frowning, and the response is best when I take my time.
Acupressure points at the inner end of the eyebrows, on the temples, and along the procerus at the bridge of the nose. These points contribute to releasing the tension pattern of the whole upper third of the face.
Vertical smoothing that runs against the grain of the fold. Without claiming to "erase" the line, I work in the opposite direction of the habitual contraction. It is part of the release of the area, and clients often feel it most clearly.
Throughout, I keep my pressure measured. On the forehead I never push — the skin is thin, and the muscles respond far better to regular, attentive work than to intensity.
What I observe
On the forehead, the clearest change I see in my studio isn't so much the softening of the line as the release of the muscle itself. Many clients arrive with a forehead that has been quietly clenched for hours, sometimes years, without their knowing. When they leave, they often tell me their gaze feels more open, without being able to say why. It is almost always because the forehead and the space between the brows have let go of what they were holding.
Where massage stops — and when to think of something else
Now the most honest part of this article: what Kobido cannot do on a frown line.
Erase a line already carved into the skin. When a frown line is etched into the dermis itself — visible at rest, with no contraction — Kobido cannot make it disappear. It can release the muscles that feed it, but the skin fold itself is now part of the structure of the dermis.
Produce fast, marked, predictable change. Kobido works in a different tempo from aesthetic medicine. On a frown line that is already well drawn, a course can support a visible release of the area, but the transformation will stay measured.
For anyone looking for direct or fast erasure, that is the field of aesthetic medicine. Botulinum toxin relaxes the muscles responsible and smooths the area in a way manual work cannot replicate. The two approaches are not rivals; they answer different questions. I look at where they meet and where they differ in my article on Kobido and aesthetic medicine.
For many of my clients, the ideal is a layered approach: Kobido as a course and ongoing maintenance for the underlying tension work, and — if they wish — a targeted medical procedure for the lines they want to soften more directly.
Going further
If you want to understand what Kobido can do across the rest of the face, I have written a full overview of the effects of Kobido, zone by zone. For the specific work on the lower face, see the muscular work on the jawline. And to plan a series, my piece on how many sessions you'll want, depending on your goals lays out a realistic rhythm. When you're ready: See my treatments → | Book a session →
Frequently asked questions about frown lines and Kobido
Can Kobido make my frown lines disappear?
No. Kobido cannot make an established frown line disappear. It can release the muscles that draw it — the corrugators and the procerus — and help a forehead that holds less tension day to day, which often makes the line read softer at rest. For a direct erasure on a deeply etched line, that is the field of aesthetic medicine. The two approaches can sit comfortably alongside each other.
Is Kobido useful as prevention for frown lines?
On a forehead that is not yet strongly marked, regular work can support an area that does not deepen further. Frown lines also depend on genetics, on your own particular way of holding expression, and on lifestyle, so no absolute guarantee. But ongoing release of the forehead and the glabella is a coherent approach for anyone who wants to look after this area over time.
How many sessions before I notice a difference on the forehead?
The forehead is one of the areas where release is most immediately felt — often from the very first session, you leave with the sense of a forehead that is "set down" again. For deeper, lasting work, I usually suggest a course of five to ten closely spaced sessions, followed by regular maintenance. I lay out the rhythm in detail in my article on how many Kobido sessions you'll want based on your goals.
Can I have Kobido and Botox on the forehead?
Yes, and many of my clients do. The two approaches work on different layers and at different tempos. The usual recommendation is to wait around two weeks after an injection before a Kobido session, so the toxin has fully settled. Beyond that window, the two can work as a layered approach: aesthetic medicine for direct softening of the line, Kobido for the underlying tension and the overall quality of the skin.
