Fast Facts:

About: The nasolabial folds, also known as “smile lines” and “laugh lines” are the folds that form between the corners of your nose and mouth, typically enhanced when you smile. These folds go hand in hand with “marionette lines”, which are the continuation of the nasolabial folds below the corners of your mouth along the chin. Nasolabial fold filler is used to fill in these lines for a more youthful appearance.

Safety: Smile line filler is typically hyaluronic acid based, FDA approved, and safe with minimal to no downtime, risks, and side effects.

Convenience: As nasolabial fold filler treatments take no longer than 30 minutes, the procedure is quick and convenient for anyone interested in reducing their smile lines. With minimal downtime and side effects, this dermal filler treatment allows patients to return to normal activities immediately after their appointment.

Cost: On average, the cost of nasolabial fold fillers range $700 – $1200 per 1 syringe.

Efficacy: Smile line filler is a safe and effective method to reduce or fully eliminate the appearance of nasolabial folds.

What are nasolabial folds (smile lines)?

Nasolabial folds, also known as smile lines are the indents that form between the corners of your nose to the corners of your mouth. With age, our skin loses elasticity and collagen, causing these folds to etch into the skin and face. Smile lines (also called “mouth parentheses”) are extremely common and often one of the earliest signs of facial aging. Laugh lines form naturally as the facial muscles are used to laugh and smile, and the skin loses its integrity along the lines of contraction.

Because smile lines are so common, the demand for dermal fillers to treat them has increased significantly over the past decade as medical technology has led to the development of various types of hyaluronic acid based dermal fillers specifically designed to treat such cosmetic concerns. Many of us develop these folds in our early twenties as the skin begins to lose collagen and elasticity, which is why dermal fillers have grown in popularity amongst younger patients as well. Facial rejuvenation for nasolabial folds using dermal fillers has been on the forefront in celebrities such as Kylie Jenner, using minimally invasive injectables such as Botox and fillers to maintain their youthful appearance.

How do I get rid of my smile lines?

When It comes to eliminating smile lines with cosmetic injections, the priority is to find the proper dermal filler. Injecting hyaluronic acid filler helps increase the collagen content of the dermis, plumping the skin and reducing lines, wrinkles, and deep folds. During your consultation, Dr. Schwarzburg will examine your face and choose any given hyaluronic acid based dermal filler that meets your needs based on your unique anatomy and desired aesthetic outcome. The most commonly used dermal fillers for this area include Juvederm, Juvederm Vollure, Restylane, and RHA. Using Vycross and other advanced cross-linking technology, many of these fillers allow Dr. Schwarzburg to eliminate your smile lines with long lasting results.

Who is a candidate for nasolabial fold filler?

Smile lines, the parentheses around the mouth, are very common amongst both males and females starting in their early twenties. The ideal candidate for nasolabial fold filler is someone who has visible lines that run along the corners of the mouth to the corners of the nose. While these lines are almost always visible when making facial expressions and smiling, the best time to consider a smile line filler is once these lines become prominent when the face is relaxed, and the nasolabial fold lines become static.


While most people are candidates for Nasolabial fold filler, there are some contraindications to be aware of including:

  • History of allergic reactions (or allergies to any of the ingredients in hyaluronic acid filler, lidocaine, or the gram-positive bacterial proteins used in certain products)
  • Bleeding disorders
  • Pregnant or breastfeeding women
  • History of herpes
  • Skin infection in the treated area

If any of the above points apply to you, you may not be a candidate for laugh line treatment.

How do I prepare for a smile line filler?

Before your smile line filler, Dr. Schwarzburg recommends that you avoid NSAIDs such as aspirin and ibuprofen as well as alcohol, all of which could lead to excess bruising after your treatment. In addition you should avoid other blood thinners, vitamins, and fish oil for 3 – 5 days to avoid unnecessary bruising.

What is a smile line filler procedure like?

Consultation: Before your procedure, Dr. Schwarzburg will analyze your facial structure and anatomy and discuss your aesthetic goals as well as your medical history during a one-on-one consultation. 

Once confirmed a candidate, Dr. Schwarzburg will construct a unique treatment plan based on your individual needs. Medical photographs will be taken for your patient record and a topical numbing cream applied to the treatment area after it is sanitized.

Procedure: The injection process typically takes no longer than 30 minutes as Dr. Schwarzburg carefully places any of the hyaluronic acid based dermal filler along your nasolabial folds using a thin hollow needle. After your injections the treated area will be sanitized and you will be provided with an ice pack to  and post-treatment guide.

How long does nasolabial fold filler injection take?

The injection process for your nasolabial fold filler will take no longer than 30 minutes. Before the treatment you will have a one on one consultation with Dr. Schwarzburg which can take anywhere from 5 to 15 minutes. Overall, you will be in and out of the clinic within 45 minutes.

Are there any associated risks and side effects with nasolabial fold filler?

Smile line fillers are FDA approved and safe as long as they are injected by a skilled and experienced provider. Dr. Schwarzburg specializes in minimally invasive procedures and performs this treatment on a regular basis, giving him the expertise to fill in this thin and complex target area. Mild redness and swelling are common immediately after the injection process. Bruising can occur in some patients, and typically subsides within 3 – 7 days. In very rare cases, lumps and bumps may form, though they can be eliminated using hyaluronidase, a product used to reverse the effects of hyaluronic acid fillers. By going to an experienced board certified cosmetic physician the risks of any side effects are minimized through skillful techniques.

Common side effects include:

  • Bruising
  • Swelling
  • Localized tenderness or mild pain
  • Itching
  • Redness

Is there aftercare for smile line filler? Is there downtime?

After the injection process, Dr. Schwarzburg will provide you with an ice pack to reduce swelling. Most patients will notice slight redness near the injection sites, which will subside within an hour post treatment. Downtime is minimal to none, though you may experience some bruising which can be reduced by applying a warm compress. You should also avoid exercise and alcohol for 48 hours post procedure to avoid filler migration and excess bruising.

Makeup may be applied 30 minutes after your injections and normal activities may be resumed after 48 hours.

How much does a smile line filler cost?

The cost of a smile line filler ranges $700 – $1200 per 1 syringe. The price varies based on the number of syringes needed to treat the area, the level of expertise of your injector, as well as the geographical location of your provider. A board certified cosmetic physician in a large city will likely charge higher than a nurse practitioner or an injector in a more rural area. Injecting fillers in any area of the face requires a high level of precision, which is why it is important to seek an experienced medical professional like Dr. Schwarzburg.

Which filler is best for marionette lines and smile lines?

There are many dermal fillers that are designed with unique properties to treat various areas of the face without the need for plastic surgery. Juvederm Vollure uses Vycross technology and is a mixture of both high and low molecular weight hyaluronic acid, and is commonly used for these areas as it is a softer, more flexible filler leaving you with long lasting, beautiful results. Other medium fillers with similar consistencies and medium thickness from the Restylane family and RHA are also used for marionette and smile lines, allowing patients to comfortably make facial expressions without any signs of the existing filler. Medium fillers are ideal for moderate to severe facial wrinkles and creases Primary ingredients in today’s dermal fillers include:

  • Hyaluronic acid (HA)
  • Calcium Hydroxylapatite
  • Poly-L-lactic acid (PLLA)
  • Polymethylmethacrylate (PMMA)

For nasolabial fold filler, hyaluronic based dermal fillers are most commonly used, due to the wide range of products and formulations available, alongside the convenience of them being dissolvable and fully reversible. The primary difference amongst various injectable gels is the thickness of the gel and their cross-linking technology (Hylacross or Vycross), which determines which area of the face it is best suited for. The most popular Hyaluronic acid based fillers used in the laugh lines are:

One filler that is almost never used along the laugh lines is Radiesse. Radiesse, also known as “liquid bone” is the densest dermal filler that is primarily used in more structured regions of the face and body for jawline contouring or to rejuvenate the hands. If injected into a more mobile area, such as the nasolabial folds, there is the risk of the filler being visible after making certain facial expressions and smiling. This is why the malleability of the above mentioned hyaluronic acid products is so important. In addition, Radiesse is non reversible, meaning that unlike hyaluronic acid based fillers, you can not dissolve it using hyaluronidase.

What is Juvederm Vollure Injectable for Nasolabial Folds?

Juvederm was created by Allergan pharmaceutical company and was FDA approved in 2017 to last for up to 18 months in patients, which is why it has become so popular due to the longevity of its results. 

The filler is bonded by unique Vycross technology combining high and low hyaluronic acid cross-linking, holding the hyaluronic acid together in a cohesive gel and slowing the breakdown of the filler allowing it to last longer than most other fillers. The consistency and chemical composition is ideal for the elimination of smile lines and deep folds in the skin, which is why it is the number one product used for this area.


Can I combine nasolabial fold filler with other treatments?

Nasolabial fold filler can be paired with a variety of cosmetic rejuvenation treatments. In some patients dermal filler alone may not be enough to fully eliminate smile lines as loose skin can get in the way of optimal results. This is particularly common in more mature patients and can be improved using PDO threads for a minimally invasive facelift.

While smile lines are often one of the first signs of aging, fine lines and wrinkles tend to form around the mouth area and other regions of the face alongside other signs of aging such as volume loss. For this reason, many patients also combine laugh line filler with neurotoxins like Botox and Dysport, or other facial fillers including lip filler, under eye filler, and cheek filler. Dermal fillers such as Juvederm and Restylane can also be used for general facial contouring along the jawline, chin, and temples, for an overall more youthful appearance.

Other services offered at Skinly that many patients use for facial rejuvenation alongside smile line filler include microneedling, Secret RF microneedling, as well as laser treatments such as Fraxel and Carbon laser, all of which are designed to improve the quality and texture of the skin.

How many syringes of nasolabial fold filler do I need?

The number of syringes needed for your smile lines depend on the depth of the lines and your individual response to the filler. Most patients need 1 – 2 syringes and yearly treatments for optimal results. The best way to find out how much filler is right for you is to schedule a consultation with Dr. Schwarzburg, so he can examine you as there is no “one size fits all” approach to dermal fillers.

Do I need to worry about having too much nasolabial fold filler?

Many patients worry that a filler will make them look puffy or overdone. Dr. Schwarzburg’s philosophy is a “less is more” approach to any cosmetic injections. If you are a candidate for a smile line filler, he will start off with just one syringe or as little as a half syringe of dermal filler based on your unique anatomy and desired outcome. While it is possible to overfill any given area of the face, you can rest assured that with Dr. Schwarzburg’s conservative approach, this will not be the case.

Does a smile line filler hurt?

Most patients tolerate the smile line injections very well. In addition to a topical numbing cream, most dermal fillers are compounded with a chemical called lidocaine, making the injections more comfortable. Fillers that include “XC” after the name of the product are compounded with lidocaine. To minimize discomfort, Dr. Schwarzburg uses a very fine needle and a special injection technique which allows the patient to go through the process with little to no pain.

How long does it take to see results from smile line fillers?

Hyaluronic based dermal fillers show immediate nasolabial fold improvement following the injections, though the full effect takes place over the course of 1 – 2 weeks after the filler has settled and post-procedural swelling, redness, and bruising have subsided. At this point, Dr. Schwarzburg will have you come in for a follow up appointment to confirm that the nasolabial fold filler has settled properly and do touch ups if necessary.

What will my smile line filler before and after results look like?

Before you get your laugh lines filled in, you will likely have visible lines, folds or creases that run from the corners of your nose down to your mouth both when you smile and when your face is relaxed. After the proper amount of filler is accurately and artistically injected into this area, these folds will no longer be visible when your face is relaxed and minimized when you smile, while maintaining natural looking facial expressions.

How long does a smile line filler last?

Your smile line filler results can last from 9 months to over 12 months depending on your body’s natural response to the filler itself. Some people, particularly those who are more physically active, tend to metabolize dermal fillers quickly, though many patients come back for follow up or touch up appointments before the filler is fully metabolized by the body to maintain aesthetically pleasing results. The longevity of the results will also depend on how much product was injected. Dermal fillers along the nasolabial folds and other mobile and heavily animated facial areas typically last slightly shorter than other areas of the face. Due to the cross-linking in the gel of Juvederm Vollure, it is one of the longest lasting fillers and may last up to 18 months.

How long does Juvederm last for marionette lines?

Marionette lines go hand in hand with smile lines and are essentially an extension of the mouth parentheses that trace downwards from the corners of the mouth. Just like the smile lines, marionette lines are located in a more animated area of the face, meaning that Juvederm or any other hyaluronic acid filler may not last as long as dermal fillers injected in less active regions of the face. On average you can expect Juvederm to last for 9 to 12 months before it is metabolized by your body.

Is nasolabial fold filler covered by insurance?

Nasolabial fold filler is not covered by insurance as it is a cosmetic procedure and not medically necessary. However, at Skinly Aesthetics, we do accept FSA and HSA flexible spending cards.

Does nasolabial fold filler work?

Yes, nasolabial fold filler works! Smile line filler is a great tool to eliminate unwanted smile lines or creases in a minimally invasive manner, allowing you to get the aesthetic results you want without the downtime or risks associated with surgical procedures.

Is smile line filler safe?

Yes, after having undergone several controlled clinical studies, smile line filler is FDA approved and safe if performed by a skilled and experienced medical doctor. Dr. Schwarzburg is a board certified cosmetic physician who specializes in minimally invasive procedures, allowing you to comfortably and safely eliminate your laugh lines with minimal to no risks or side effects.

What are pros and cons to getting nasolabial fold filler?


  • Minimally invasive
  • Non surgical
  • No downtime
  • Instant results


  • Not permanent
  • May cause bruising for up to 7 days


Smile line filler is used to reduce or eliminate the appearance of the lines or folds that run along the corners of the nose to the corners of the mouth. A wide variety of dermal fillers can be used to treat this area with minimal to no risk or downtime. It is a safe and effective treatment, given that it is administered by a skilled and experienced board certified physician like Dr. Schwarzburg.

How can I get started with my Nasolabial fold filler treatment?

If you are looking to get your laugh lines filled, Dr. Schwarzburg at Skinly Aesthetics is here for you. With several years of experience and a wide range of patients at his private clinic located on the Upper East Side of Manhattan in New York, Dr. Schwarzburg has both the skill and experience to perform this procedure successfully and safely on his patients. Dr. Schwarzburg is adamant about the safety and comfort of his patients and thus, takes his time before, during, and after the procedure to ensure optimal and satisfactory results. If you are interested in scheduling a consultation with Dr. Schwarzburg, please contact us at Skinly Aesthetics at, or call or text us at (212) 774-4264.