Can Botox fix smile lines? Who benefits from it and who doesn't

"Aren't nasolabial folds solved with just one shot of Botox?" This is one of the most common questions I hear during consultations. To jump to the conclusion, Botox alone does not solve most nasolabial folds. This is because the main cause of nasolabial folds is not muscle contraction, but the descent of cheek fat and a decrease in collagen—in other words, 'loss of volume and sagging skin.'

Botox is a procedure that temporarily relaxes muscles, so it is helpful for muscular (dynamic) wrinkles that appear only when making facial expressions. However, Botox cannot fill in deep nasolabial folds that remain even when expressionless, or areas that have lost support due to depleted collagen. Therefore, knowing which type of nasolabial fold you have first is the correct order of business.

🔍 Botox for Nasolabial Folds: Why Do Results Vary?

The medical term for nasolabial folds is Nasolabial Fold. It is the line that runs from the side of the nose to the corner of the mouth. There is more than one reason why this area deepens.

As we age, the fat pads in the cheeks sag downward, and as collagen in the dermis decreases, the skin loses its support. This is compounded by facial skeletal changes such as the maxilla, UV rays, smoking, rapid weight changes, and repetitive facial expression habits. With such diverse causes, a single procedure cannot be the answer for everyone.

Botulinum toxin type A is an ingredient that temporarily weakens muscle contraction by inhibiting acetylcholine release at nerve endings. While it is effective for wrinkles created by muscles, the principle itself does not apply to valleys caused by hollowed-out volume.

📌 Key Summary: Since the cause of nasolabial folds is usually loss of volume and sagging, Botox, which relaxes muscles, is only an auxiliary measure and not the primary solution.

🧭 What Type of Nasolabial Fold Do I Have? (Self-Assessment)

There is a way to roughly gauge this at home. While not perfect, it helps point you in the right direction.

• If the folds fade when you lift your cheeks upward with your hands → Sagging type (Lifting and volume supplementation take priority)

• If they deepen only when laughing or speaking → Muscular type (Consider Botox)

• If they are deeply hollowed out even when expressionless → Volume/Static type (An approach to fill volume is needed)

An important concept here is the distinction between dynamic wrinkles and static wrinkles. Dynamic wrinkles are those that appear and disappear with facial expressions, while static wrinkles remain even when expressionless. Botox is suitable for dynamic wrinkles, while filling procedures are suitable for static wrinkles.

However, the self-test is only a reference. In reality, most cases are a mix of the volume, sagging, and muscular types, so we must see and touch the area to determine the exact proportion of each cause.

📌 Key Summary: If it improves when lifting the cheeks, it is a sagging type; if it worsens only with facial expressions, it is a muscular type—but since most are composite types, a professional diagnosis is necessary.

💉 The Role and Limits of Botox in Nasolabial Folds

Various expression muscles are intertwined around the nasolabial area: the levator labii superioris alaeque nasi (LLSAN), levator labii superioris, risorius, zygomaticus major and minor, orbicularis oris, and the depressor anguli oris (DAO) which pulls the corners of the mouth down.

If it is a muscular nasolabial fold, we can soften the impression by precisely adjusting the target muscles among these. The effect starts 2 to 7 days after the procedure, reaches its maximum effect in 1 to 2 weeks, and lasts for an average of 3 to 4 months (ranging from 3 to 6 months depending on the individual).

The problem is that these muscles are all involved in smiling, talking, and eating. If injected excessively, it can cause facial asymmetry, an awkward mouth line, and pronunciation discomfort. You must be especially cautious if your profession relies heavily on facial expressions and pronunciation, such as broadcasting, lecturing, or sales.

Another thing: Botox has no immediate reversal agent if side effects occur, so you must wait for the effect to wear off naturally (3 to 4 months). This is a different response method compared to fillers, which can be dissolved with hyaluronidase. In rare cases of repeated or excessive treatments, neutralizing antibodies may develop, reducing the effectiveness.

📌 Key Summary: Botox is effective for 3 to 4 months for muscular nasolabial folds, but excessive injection carries the risk of facial awkwardness and cannot be immediately reversed.

⚖️ Botox vs. Filler vs. Lifting: What's the Difference?

The most common misunderstanding is, "Aren't Botox and filler similar?" The two are completely different procedures with different ingredients and principles. Botox 'relaxes' muscles, while filler 'fills' volume.

Filler is close to the primary standard for nasolabial folds, but because of the facial artery passing through the nasolabial area, there is a risk of vascular embolization and skin necrosis. Therefore, it is good to check if the clinic is equipped with hyaluronidase to dissolve it in an emergency. If sagging is the main cause, thread lifting or non-invasive elasticity procedures like radiofrequency (RF) and ultrasound (HIFU) are recommended. If mid-face volume is lost, volume supplementation or fat grafting is closer to the fundamental solution.

There are also methods to refine fine wrinkles and skin texture with **Skin Botox (Dermotoxin)**, which is injected in small amounts into the shallow layer of the skin, or to combine filler and Botox to enhance the level of completion. The key is the right combination tailored to the cause.

📌 Key Summary: Botox = muscular type, Filler = volume type, Lifting = sagging type. In most cases, satisfaction is highest when combining them according to the cause.

🌿 Filling While Boosting Collagen: The Option of Onbollassom

As we have seen, the true cause of nasolabial folds is usually an area that has lost support due to a decrease in collagen. The folds deepen as facial expressions are repeated, and once collagen decreases, it is not replenished naturally. That is why Gangnam Onlif Clinic guides patients with volume/static nasolabial fold concerns to **Onbollassom (ON BollaSsom)**.

Onbollassom is a nasolabial-specific collagen booster made of biocompatible calcium mineral (CaHA) components. Unlike HA fillers that simply fill, it immediately replenishes volume in sunken areas while gradually decomposing in the body to activate fibroblasts, inducing self-collagen production. In short, it is designed to 'fill immediately and regenerate for a long time.'

Thanks to its patented lattice-pore structure, the central core stably maintains volume while the outer layer is gradually absorbed, inducing collagen regeneration. The procedure takes about 10 to 15 minutes in total. After applying anesthetic cream, the sunken areas are delicately corrected, and most patients can return to daily life immediately after the procedure.

This approach is suitable for those whose nasolabial folds are distinct even when not smiling, those concerned about looking older, or those who want to improve both nasolabial folds and skin elasticity together. Depending on the type of sagging and depth, combining it with thread lifting or fillers can further enhance the results.

Onlif does not aim to change the shape of the eyes, nose, or mouth, but rather pursues non-surgical skin procedures that remove skin aging and loss of elasticity that obscure your natural beauty. Operating on the belief that a single doctor cannot do everything perfectly, we run a medical specialty system where doctors take charge of the procedures they perform best in each field.

📌 Key Summary: Onbollassom is a calcium collagen booster that aims for both volume replenishment and self-collagen regeneration, making it a non-surgical approach suitable for volume/static nasolabial folds.

📋 Before and After the Procedure, Be Sure to Keep These in Mind

For any procedure, diagnosing the cause comes first. It is safe to inform your doctor in advance of any history of previous fillers, thread lifts, fat grafts, or facial paralysis.

• Contraindications: Those who are pregnant, breastfeeding, or have neuromuscular diseases should avoid Botox.

• Post-Procedure Care: Avoid lying down within 4 hours, and refrain from strong massage on the treated area, drinking, smoking, and saunas for about 1 week.

• Comparison Photos: Keeping photos of your front, 45-degree angle, and smiling expression under the same lighting, distance, and angle is good for objectively checking changes.

The domestic average cost of Botox for nasolabial folds is roughly 25,000 KRW to 70,000 KRW per area, varying depending on the size of the clinic and the products used. Since domestic and imported products have different unit systems, simple comparisons should be made with caution.

📌 Key Summary: Diagnosis comes first. Your satisfaction and safety will increase together if you check contraindications, manage post-procedure care, and keep before-and-after photos.

❓ Frequently Asked Questions (FAQ)

Will my nasolabial folds really disappear if I get Botox?

In most cases, they do not disappear completely. Since the main causes of nasolabial folds are volume loss and sagging, Botox, which relaxes muscles, is closer to an auxiliary measure. It can be helpful if it is a muscular type that worsens only when making facial expressions.

Which is more effective for nasolabial folds, Botox or filler (or volume booster)?

It depends on the cause. Botox is suitable for dynamic wrinkles that appear only when smiling, while filling procedures are more suitable for deep volume/static types that remain even when expressionless. An approach like Onbollassom, which fills volume and collagen together, is also suitable for the static type.

Will my smile look awkward if I get Botox for nasolabial folds?

If injected excessively, it can cause facial asymmetry, an awkward mouth line, or pronunciation discomfort. This is because the muscles around the nasolabial folds are involved in smiling, talking, and eating. It is important to adjust the dosage and location precisely.

When does the effect start and how long does it last?

The effect of Botox starts 2 to 7 days after the procedure, reaches its maximum in 1 to 2 weeks, and lasts for an average of 3 to 4 months. Onbollassom shows immediate volume improvement right after the procedure, and tends to maintain for 6 months to over a year as collagen fills in over time.

My nasolabial folds are deep even when I am expressionless. Is Botox effective?

If they are deeply hollowed out even with no expression, they are highly likely to be static/volume types, so Botox alone has limitations. In this case, an approach that fills the sunken areas and induces collagen regeneration is more suitable.

Can I get Onbollassom even if I have had filler procedures in the past?

Yes, it is possible. However, the treatment plan may vary depending on your history of previous procedures and current skin condition, so it is best to confirm the exact details during an in-person consultation.

Are there people for whom nasolabial fold procedures are not suitable?

Botox should be avoided if you are pregnant, breastfeeding, or have a neuromuscular disease. Other than that, if the procedure does not match the cause, the effect may not be as expected, so diagnosing the cause before the procedure is absolutely necessary.

Things to Check Before Choosing a Clinic for Nasolabial Fold Botox

Even for the same procedure, the results and recovery process vary depending on where, by whom, and how it is performed.

Asking these questions directly during your consultation will help you make a decision.

• Do they perform this procedure frequently? — Each clinic has different specialties. Check if they regularly perform Botox for nasolabial folds.

• Can I verify the products and equipment used? — Ask during the consultation if you can check the product name and whether it is genuine (whether it is an import-approved product and if there is a process to confirm unboxing).

• Do they explain the cost breakdown? — Rather than just hearing the total amount, you need to hear an explanation of what product is used, how much, and on which area to make an informed decision.

• Do they design the treatment by looking at the entire face? — For the same procedure, the injection site and amount vary depending on the face shape, skin condition, and left-right asymmetry.

• Do they explain the adverse reactions and recovery process first? — It is better to choose a clinic that informs you of possible adverse reactions and how to handle them, rather than a consultation that only talks about expected positive changes.

• Is there a way to follow up after the procedure? — Check if there is a designated time to check progress, a way to contact them if there is an issue, and criteria for follow-up visits.

How Onlif Clinic Performs Botox for Nasolabial Folds

• We divide responsibilities — Operating on the belief that a single doctor does not handle every procedure, Onlif divides medical treatment among doctors responsible for each field.

• We verify products and equipment together during the consultation — We guide you through the products used and the unboxing verification process during the consultation.

• We guide you on costs along with the breakdown after diagnosis — Since the site, volume, and scope differ for each person, we explain what costs how much together.

• We design based on the overall balance of the face — Looking at the face through three axes—texture, balance, and signals of youth—we plan to tidy up parts that obscure your natural expression rather than changing your features.

• We explain adverse reactions and the recovery process first — Along with the changes you can expect, we guide you on individual differences, potential adverse reactions, and countermeasures before the procedure.

• We monitor progress together after the procedure — If verification is needed during the recovery period, we provide guidance on follow-up visits and contact channels.

If you are considering Botox for nasolabial folds, it is best to first check what is possible and what is difficult in your current condition.

An accurate diagnosis and treatment plan can only be determined through an in-person medical examination. Please check through a consultation at Gangnam Onlif Clinic.