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Dermal Fillers

How Long Do Nasolabial Fillers Last

Nasolabial fillers are used to smoothen the nasolabial folds, also known as smile lines. This article highlights what nasolabial fillers are, how they work, their benefits and how long these fillers last.     

As individuals age, some ageing symptoms start appearing on their faces and different parts of their bodies. The laugh lines, also called smile lines, are among the early signs of ageing. In an individual’s youthful period, the smile lines are only noticeable when one laughs and vanishes when one stays calm. But as one age, the smile lines are permanent and can be seen even without you laughing. The nasolabial fillers can help reduce these smile lines when injected, ideally to cover any smile lines. You will have your attractive look back without anyone noticing that you have injected Nasolabial fillers.

Are Nasolabial Fillers Permanent?          

The period that nasolabial fillers are most likely to last depends on factors such as your metabolism and the type of filler one has been injected. Nasolabial fillers may last for an extended period but are not permanent. The results last for about 6 to twelve months, and one can decide to go for the top up’s before the filler starts fading away, or they can wait for them to break down and begin the whole treatment procedure. But it is advisable to go for top-ups instead of a new process since it becomes affordable and the results are satisfying.

What are nasolabial fillers?           

According to Nasrollahi et al. (2022), the smile lines are a sign of ageing and appear at the nose area and go downwards to both sides of the mouth. The smile lines result from laughing; that is why they are called the smile line. As time goes by, they deepen and become noticeable even without smiling. The smile lines, also known as nasolabial folds, are caused not only by laughing and old age but also by several factors, including constantly exposing yourself to direct sunlight. Cigarette smoking leads to the formation of fine lines near the mouth because of frequent motion in the mouth area. Weight loss and dehydration are also causes of nasolabial folds. Once injected, the nasolabial fillers facilitate the production of collagen that increases the volume of your face, filling the smile lines and leaving you with a beautiful and youthful look. They end up making you feel bad and less proud of your appearance.

How Do Nasolabial Fillers Work?

Your cosmetic doctor will determine whether one can undergo the filler treatment by checking their health records and whether they have any infections. The first thing your aesthetic provider does is cleanse the area to be injected. You willhardly feel pain when injected with nasolabial fillers since they contain lignocaine, which helps reduce pain. Still, the cosmetic provider can use a numbing cream. If your pain tolerance is very low, your cosmetic doctor will apply a numbing ointment to help reduce pain and will begin by injecting nasolabial filers on the face—some other amounts on the smile lines to smoothen them. After the injection procedure, the cosmetic provider will rub the injected area to prevent swelling and lumps from appearing. The process takes a maximum of ten minutes.

Benefits of Nasolabial Fillers

Nasolabial filers have several benefits, which include:

It Enhances Your Whole Facial Appearance

Nasolabial fillers restore the body’s normal appearance by preventing the formation of smile lines, making your face plump and reducing the sagging that occurs due to weight loss; this will leave your face levelled up with a perfect and natural look.

Quick Process and Long-Lasting Results

According to Grablowitz et al. (2019), fillers are very effective and easy to administer since the process takes only a maximum of twenty minutes. The results are long-lasting but with some touch-ups done after six months. Once the whole process is complete, you will only wait for a short period to obtain your results.

Fewer Side Effects

According to Vedamurthy (2018),whenan experienced anaesthetic doctor injects nasolabial fillers, they will prevent significant side effects. There will be only minor side effects like bruising, swelling and redness in the injected area. These effects may only last for a few days before disappearing on their own. You only need to give yourself some time before returning to your regular routines to avoid worsening the swelling and bruising.

Side Effects of Using Nasolabial Fillers

According to Dai et al. (2019), Nasolabial fillers are safe and harmless but have minor side effects. After the filler treatment, swelling and bruising may appear in the injected area. These effects are not severe and fade on their own after several hours. Complications such as stroke, vision impairment, and exaggeration of facial features may occur if an unskilled cosmetic doctor carries out the whole procedure. To prevent significant complications and life-threatening issues, ensure your aesthetician is a specialist in injecting nasolabial fillers.

FAQS about Nasolabial Fillers

Will I Fill Pain During the Procedure?

You will not feel any pain since nasolabial fillers contain lignocaine that helps minimize pain. Still, when injected in the smile lines, you may feel discomfort compared to other treated areas. A numbing cream is used to ease the pain if necessary. Some common side effects, such as bruising and bleeding, may be experienced, and swelling may occur, but it should not last more than a week after the procedure.

After How Long Will I Notice the Results of the Nasolabial Filler?

Nasolabial filler results can be seen immediately after completing the whole procedure. Still, mild swelling is experienced in the injected area, which lasts only about a week. Nasolabial fillers can also attract and retain water and facilitate the production of collagen, which makes the full results noticed in about four weeks. Nasolabial fillers are semi-permanent. They may end up being broken down after twelve months.

Is One Session Enough to Get My Desired Look?

Many people find the results satisfying after one procedure. If one session works well for you, you should go for a touch-up session after six months to maintain your perfect look. If you feel you need another session, you can carry on with the session to obtain the look you want. But if you’re going to inquire from your cosmetic doctor whether you can take a second procedure, you should wait until the bruising and swelling have disappeared and the filler has kicked in.


Smile lines are noticed when someone smiles, but as time goes by, they become more profound, even without you smiling. The nasolabial fillers help reduce the appearance of these smile lines and help you retain your youthful look. Nasolabial fillers are not permanent. They last for about six months before they start fading away. The nasolabial fillers have several benefits, such as enhancing your whole facial appearance, fast injecting, and long-lasting results.Nasolabial fillers are harmless. Still, minor bruising and swelling are noticed immediately after the treatment, and you do not need to stress yourself about them since they disappear on their own.


Dai, X., Li, L., Peterson, W., Baumgartner, R. R., Huang, J., Baer-Zwick, A., … & Prinz, M. (2019). Hyaluronic acid dermal filler’s safety and effectiveness in correcting moderate-to-severe nasolabial folds in Chinese subjects. Clinical, Cosmetic and Investigational Dermatology, 12, 57.

Grablowitz, D., Sulovsky, M., Höller, S., Ivezic-Schoenfeld, Z., Chang-Rodriguez, S., & Prinz, M. (2019). Safety and efficacy of princess® filler lidocaine in the correction of nasolabial folds. Clinical, Cosmetic and Investigational Dermatology, 12, 857.

Nasrollahi, S. A., Kashani, M. N., Yazdanparast, T., Ameri, S., & Firooz, A. A randomized, double-blind, comparative study for efficacy assessment of two hyaluronic acid nasolabial fillers. J Surg Dermatol 2022; 7 (1): 170.

Vedamurthy, M. (2018). Beware what you inject: Complications of injectables—dermal fillers—Journal of Cutaneous and Aesthetic Surgery, 11(2), 60.

Monika Wasserman