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Dermal Fillers

How to Inject Lip Fillers

Lip fillers are dermal fillers injected beneath the skin tissues to make the lips plump and hydrated. This article highlights lip fillers, why patients go for them, the different types, and how to inject them.

Lip fillers are gel-like substances injected under the tissues to increase lip plumpness and hydrate them. They can last for 3-12 months. An aesthetic practitioner or cosmetic doctor performs lip filler injections. Lip fillers are available in different types, each with a different lasting period. Patients use lip fillers for various purposes, including removing wrinkles and restoring previous lip size. Before lip filler treatments, one should avoid taking blood thinner medications and alcohol. Also, you should book a consultation meeting with your cosmetic doctor to highlight factors such as allergies and your preferred look. Tell your cosmetic doctor about any possible allergies to avoid adverse complications.

What are Lip Fillers?

Dermal fillers entail nonsurgical aesthetic procedures. They are injectable substances that add volume to the skin. They are gel-like substances injected under the skin to add volume and eliminate wrinkles. There are different types of filler treatments, including lip fillers. While aging, the skin loses its volume and becomes saggy and thin. Genetics can also cause volume loss.

Lips fillers are injected by a cosmetic doctor or an aesthetic practitioner. The UK does not regulate fillers. Therefore, there are a lot of quack aestheticians. Before going for lip filler treatments, a patient should ensure the cosmetic doctor who will perform the filling procedure is qualified. A certified aesthetic practitioner will ensure you have a smooth and safe procedure.

Why Lip Fillers?

Patients go for lip fillers for various reasons. They include:

Restore Previous Lips

The lips may lose volume and become thin. Ghasemi& Akbari (2022) suggested that lip fillers can be used to get the lips back to their size by making them plump and hydrated.

Getting Rid of Wrinkles

Wrinkles are a sign of old age. They are a result of saggy and thin skin.Funt (2022) showed that lip fillers could help eliminate wrinkles around the mouth by making the skin tight and rejuvenated.

Boosting Appearance

Some patients can go for lip filler treatments to enhance their look. Plump and hydrated lips can boost one’s appearance. Also, patients with asymmetrical lips can choose lip fillers to make them meet their preferences.

Types of Fillers

Fillers are available in different types, including;

Hyaluronic Acid Fillers

Hyaluronic acid fillers make the skin full (plump) and hydrated. It is also a natural compound in the body. Alam& Tung (2018) stated that Hyaluronic acid fillers are temporary and help eliminate fine lines and wrinkles. They are the most common type of filler used. When injected under the skin’s tissues, hyaluronic acid attracts water that helps with hydration and plumpness. Bertossi et al. (2019) revealed that Hyaluronic acid fillers last up to a year and help stimulate collagen production, enhancing appearance. Also, they decrease wrinkles and fine lines and smoothen skin texture.

Polylactic Acid Fillers

Collagen helps reduce wrinkles and fine lines by making the skin strong and tight. Polylactic acid fillers also improve fine lines and give a natural look. Polylactic acid fillers contain microspheres that trigger collagen production. According to Lafaurie et al. (2013), the results of polylactic acid fillers last for two years.

Polymethylmethacrylate Fillers

Polymethylmethacrylate fillers are less versatile compared to the other types. They mainly consist of collagen, which makes them have a thick texture. Polymethylmethacrylate fillers are durable, making them semi-permanent. Chacur et al. (2019) noted that the results of these fillers last for five years. However, they cannot be injected on thin skin.

How to Inject Lip Fillers

What to Expect Before Lip Fillers

Before lip filler injections or treatments, patients need to consult their aesthetic practitioner to evaluate the procedure they intend to undertake. Patients should tell the cosmetic doctor what they intend to achieve and if they have allergic reactions to medications. The aesthetic practitioner will run tests on the patient to check on possible allergic reactions and the patient’s mental health.

During the Procedure

After the examination, the cosmetic doctor will book an appointment for the patient. The aesthetician will inject minute amounts of the filler into the tissues to get the desired look. On the day of the filler treatment, the aesthetic practitioner will numb the lips using a numbing cream or a nerve block to ease the discomfort and possible pain. Most cosmetic doctors use numbing creams that contain lidocaine.

According to King et al. (2018), some patients may require more than one dosage and may need to return to their aesthetic practitioner for additional fillers. The appointment may be scheduled two weeks after the first lip treatment.

After the Procedure

Snozzi& Van Longhem (2018) showed that lip filler treatments have various effects, including bruising, redness, and swelling. However, they fade away after a while. After the lip filler procedure, a patient should follow the aftercare guidelines highlighted by the cosmetic practitioner to help with smooth healing.

What to Avoid After Lip filler treatments

Patients should follow aftercare guidelines given by their cosmetic doctor after lip filler treatments. Some of the things to avoid include the following;


Alcohol is a vasodilator. It dilates the blood vessels, increasing blood flow. Drinking alcohol before the filler treatment heals will lead to long-term complications.

Avoid Strenuous Activities

Activities, such as workouts, are beneficial to a patient’s health. However, excessive exercise can lead to an increased metabolic rate, making the fillers wear off quickly. Also, during the activities, the body sweat too much. The sweat can go to the lips, which can cause infections in the injected area.

Do not Put Pressure on the Injected Area

Massaging or applying makeup can exert pressure on the lips. Exerting Pressure on the injected area can lead to distortion of the fillers.

FAQs about Lip Fillers

Can You Inject Lip Fillers Yourself?

Patients should not inject lip fillers. A wrong dermal filler injection will cause irreversible effects, such as blindness and facial paralysis. The face has several tissues, blood vessels, and nerves that may be harmed when interfered with.

How Long Do Lip Injections Last?

Chirico et al. (2021) suggested that lip fillers last for 3-12 months. However, other fillers last longer than this.

Do Lip Fillers Dissolve Naturally?

Complication management following rejuvenation procedures with hyaluronic acid fillers. However, metabolism and excessive exposure to UV rays can make the lips dissolve faster. Also, one can use hyaluronidase enzyme to dissolve the fillers.

Who Performs Lip Fillers?

Cosmetic doctors or aesthetic practitioners do lip fillers. However, the UK does not regulate fillers. Therefore, there are a lot of quack cosmetic doctors. Ensure you get the best treatment from a qualified aesthetic practitioner to avoid adverse complications such as blindness.


Patients opt for lip fillers for various reasons, including correction of lips. Lip fillers are injectable substances that add volume to the lips and make them hydrated and plump. Aesthetic practitioners or cosmetic doctors perform lip filler treatments.Before lip filler treatments, the patient should book a consultation meeting with a cosmetic doctor. Patients should address their concerns, such as allergies and preferred looks.Lip fillers last for 3-12 months. Ensure you get the lip treatment from a qualified aesthetic practitioner.


Bertossi, D., Giampaoli, G., Lucchese, A., Manuelli, M., Albanese, M., Nocini, R., &Nocini, P. F. (2019). The Skin Rejuvenation Associated Treatment—Fraxel Laser, Microbotox, And Low G Prime Hyaluronic Acid: Preliminary Results. Lasers In Medical Science, 34(7), 1449-1455.

Chacur, R., Menezes, H. S., Da Silva Chacur, N. M. B., Alves, D. D., Mafaldo, R. C., Gomes, L. D., & Dos Santos Barreto, G. (2019). Gluteal Augmentation With Polymethyl Methacrylate: A 10-Year Cohort Study. Plastic And Reconstructive Surgery Global Open, 7(5).

Chirico, F., Colella, G., Cortese, A., Bove, P., Fragola, R., Rugge, L., … &Tartaro, G. (2021). Nonsurgical Touch-Up With Hyaluronic Acid Fillers Following Facial Reconstructive Surgery. Applied Sciences, 11(16), 7507.

Funt, D. K. (2022). Nonsurgical Facial Enhancement And Rejuvenation—Fillers, Neurotoxins, And Fat Transfers. In Tips And Tricks In Plastic Surgery (Pp. 85-110). Springer, Cham.

Ghasemi, S., & Akbari, Z. (2022). Lip Augmentation. Dental Clinics, 66(3), 431-442.

King, M., Convery, C., & Davies, E. (2018). This Month’s Guideline: The Use Of Hyaluronidase In Aesthetic Practice (V2. 4). The Journal Of Clinical And Aesthetic Dermatology, 11(6), E61.

Lafaurie, M., Dolivo, M., Girard, P. M., May, T., Bouchaud, O., Carbonnel, E., … & ANRS 132 SMILE Study Group. (2013). Polylactic Acid Vs. Polyacrylamide Hydrogel For Treating Facial Lipoatrophy: A Randomized Controlled Trial [A Gene N Nationale De R Recherches Sur Le SIDA Et Les H Épatites V Males (ANRS) 132 SMILE]. HIV Medicine, 14(7), 410-420.

Snozzi, P., & Van Loghem, J. A. (2018). Complication Management Following Rejuvenation Procedures With Hyaluronic Acid Fillers—An Algorithm-Based Approach. Plastic And Reconstructive Surgery Global Open, 6(12).

Marie Salbuvik