The Art of the Natural Lip: A Story of Structure, Symmetry, and Skill
There’s a certain magic in a subtle transformation—the kind that doesn’t scream “I’ve had work done,” but instead whispers, “I look like the best version of myself.” Today, we had the pleasure of working with a wonderful patient, a bride-to-be getting married in September. She had never had lip filler before, making her a virgin patient, which is always a joy. Her main concern? When she smiled, her upper lip seemed to disappear, curling inward. This made her a perfect candidate for what we call a lip flip—a treatment she had already experienced with a toxin several weeks prior. She had seen improvement and loved the results.
Here’s the key distinction I explained to her: filler provides volume, which helps with that curling of the lip, but it is a completely different tool than the toxin. The toxin controls the muscle contraction of the orbicularis oris muscle—the round muscle surrounding the mouth responsible for closing your lips, creating fine lines, and pulling that lip inward when you smile. My recommendation for her, and for any patient, is to continue doing lip flips in between filler sessions. The muscle control is separate from volume, and combining both approaches ensures the best, most natural outcome. I advised her to have another lip flip one to two weeks before her wedding to maximize that relaxed, lifted look.
The First Syringe: Subtlety is the Secret
She was looking for a little bit of volume, nothing dramatic. I reassured her that one syringe, especially your first, will never look overdone. Your first syringe is always the most natural-looking because there is no existing product to build upon. It creates a soft, subtle enhancement—so much so that many patients return four to five months later believing the product is gone. But it’s not gone. The baseline volume is still there; it has simply integrated so seamlessly into the tissue that you can’t feel it. The product is designed to last nine to twelve months, but the first result is often so gentle that you forget it’s there. If you decide you want more volume later, we can layer additional product on top. That’s when you start to see the buildup of significant volume. But take it slow—get comfortable with this first result before adding anything else.
Choosing the Right Product: Structure Meets Softness
For her specific concern—that curling of the lip—I chose a product called Restylane Kysse from the Galderma family. It is approved for lips and offers a unique balance: it is soft and smooth, yet provides enough structure to perform a technique known as tenting. Tenting involves placing tiny lines of filler in a specific direction to hold the lip up and prevent it from curling inward. This product is ideal for that. It combines softness and structure perfectly, and I use it daily because patients never complain about lumpiness or bumps. It comes with a 30-gauge needle, and I prefer to use the original syringe rather than transferring to insulin syringes. I am meticulous about cleanliness, and I believe transferring product always carries a risk of cross-contamination, no matter how careful you are. The product is sterile inside its original syringe, and I want to keep it that way.
The Mucosal Block: Precision Without Paralysis
To ensure her comfort without compromising her ability to smile or pucker—essential movements for precise injection—I performed a mucosal block. This is not a true dental block; it numbs the mucosa without affecting the muscle contraction. She remained able to smile and interact throughout the procedure. For the block, I used a tiny injection—about 0.05 ml with a 30-gauge needle, inserted about a quarter of the needle’s length. For the lower lip, I aimed for the mental foramen, located in line with the canine tooth. The same approach was used for the upper lip, aiming for the canine. It was a quick, well-tolerated process.
Before You Begin: Checking for Hidden Product
Even if a patient says they haven’t had lip filler in three or five years, I always palpate the lips. Most patients don’t remember exactly what product they had, and you never know—it might be a product like Restylane Lyft that remains in the tissue. So I feel the lips carefully for any bumps, lumps, or migrated product that needs to be addressed before starting. I also check the wet-to-dry border—the line where the pink, dry part of the lip meets the moist, wet inner part. Sometimes, product can accumulate there, especially if the previous injector got too close to that border. This product can remain for years without going away. If I find any, I recommend dissolving it before injecting. If you try to inject around an open door—where product has migrated—the new filler will travel to that area of least resistance, like water flowing downhill. It will follow the path of the old product, whether in the wet-to-dry border or on the skin of the upper lip.
Anatomy and Safety: Knowing the Vessels
When injecting the lips, the major vessels to avoid are the superior and inferior labial arteries, which branch from the facial artery. They run near the mucosa and the wet-to-dry border. When you flip the lip, you can sometimes see the artery pulsating, especially in patients with superficial arteries. We inject very superficially—on the pink, dry part of the lip, staying clear of the wet-to-dry border. This keeps us safe and ensures the product stays where it belongs.
The Lip Flip with Toxin: Two Approaches
There are two ways to perform a lip flip with toxin. The one I prefer is what I call the old version: the orbicularis oris injection. I have the patient pucker or blow a kiss, and I look for the deepest lines where the muscle is pulling the most. Then I place tiny dots of toxin exactly on the vermilion border—the line between the lip and the skin—at those deepest points. This releases the muscle, allowing the lip to evert and not curl inward. I do this on both the upper and lower lip, using about two units per dot. I find this approach creates a beautiful, natural result, and patients love it.
The other method, which I feel is older and sometimes too aggressive, involves injecting the orbicularis oris on the skin between the nose and the vermilion border. This tends to take away too much movement and can change a person’s smile significantly. I only use it for older patients, in their sixties or seventies, who need those fine lines targeted. Even then, I use a tiny amount—maybe one unit, not two—because this technique takes more movement away.
Marking and Respecting Natural Proportions
Before I begin any injection, I mark the lips with two lines from the ala of the nose—the same width as the inner canthus of the eyes—all the way down to the chin. This medial section is where the natural volume of the lip should be concentrated. I also mark the midline. Our patient had a beautiful, natural cleavage in her upper lip, with two little pillows on the sides. That shape is beautiful, and we are not going to erase it. It stays. Similarly, her lower lip had two lovely pillows with a small dimple or indentation in the center. That is a natural, attractive shape, and we respect it.
The Tenting Technique: Lifting the Lip
Since she was already numb from the mucosal block, I started with tenting. For the top lip, I made tiny retrograde injections—going in on the pink part of the lip and withdrawing as I inject, leaving a tiny droplet at the entry point. This creates a line of filler that lifts and supports the lip, preventing that inward curl. I typically use about 0.2 ml per side for the top lip. I always watch the tissue, not the syringe. The amount I need is already ingrained in my hands, but my eyes stay on the tissue to ensure even distribution and a natural look. After placing the first lines, I checked for symmetry and adjusted as needed. Remember, asymmetry is common, and you can use the tenting technique to balance it—say, four lines on one side and five on the other, adding a little more volume where needed.
For the lower lip, I use a similar retrograde fanning technique, creating a small V shape with two lines. I stay respectful of the midline cleavage, adding no product there. I placed three lines on each side of the lower lip, each line about a quarter of the needle length, staying superficial and watching for that tiny droplet at the end.
Adding Shape and Support: The Cupid’s Bow and Corners
To enhance the Cupid’s bow, I used a subtle technique—simply the bevel of the needle to add a tiny amount of structure and sharpness at the peak of the bow. This gives the lip a defined, elegant shape without being aggressive. I then used a little product to mold a gentle triangle shape.
But my favorite finishing touch is the corners. Even for a young patient with no drooping, lifting the corners just a tiny amount frames the lips beautifully. I stand on the opposite side of the corner I am treating, pull the skin upward in the direction I want it to go, and place a small retrograde line on the mucosa, followed by a little V shape. This tiny amount of product—less than 0.05 ml—doesn’t make a significant difference on the lip itself, but on the corners, it lifts and shapes everything perfectly. It is a subtle, elegant detail that makes the entire smile appear brighter.
What to Expect After the Procedure
For the first couple of days, you will feel a little lumpy or bumpy. This is completely normal. It is not the product itself; it is the body’s natural swelling response to the injections. Do not touch, massage, mold, or play with the lips. Let the product settle on its own. It will integrate into the tissue, and soon you won’t be able to feel where it is. If you try to mold it too much, you could accidentally reduce the volume or the lift we just created.
Avoid lipstick or lip gloss for the first four to six hours. I applied a base of bacitracin, which contains a mild antibiotic and protects the injection sites. Also, avoid puckering or licking your lips for the first hour. Some bruising, swelling, and tenderness are normal. But pain is not normal—if you feel real pain or any excessive swelling or bruising in areas where we did not inject (like your chin or nose), let us know immediately.
If you are thinking about adding more filler, wait at least two weeks for the swelling and bruising to subside, but ideally one full month. This allows the product to settle completely and reduces the risk of migration or travel. Get comfortable with this result before deciding to add anything else.
A Beautiful Transformation
When we finished, I sat her up and asked her to smile. The difference was subtle yet striking. Her lip was no longer curling inward; it was lifted, balanced, and soft. She felt only minimal discomfort during the procedure—a one out of ten at the worst points—and she was overjoyed with the result. She smiled beautifully, naturally, and with confidence. That is the goal: a result that looks and feels like you, only more refined. A subtle art that makes you look like the best version of yourself, ready to walk down the aisle and embrace your day.