In 2023, the odds of you knowing someone (or a celebrity) that has had lip filler are high. Seemingly overnight, the lip treatment has become just as common as getting laser hair removal or even “baby Botox.” Fascination with plump, full lips is nothing new, but more and more people have taken an interest in lip fillers as opposed to overlining or using lip plumping gloss.

So, to get the low down on all things lip filler, we tapped board-certified dermatologist Dr. Michael Lin and board-certified plastic surgeons Dr. Nina Naidu and Dr. David Shafer to tell us everything we need to know. Whether you’re wondering how long lip fillers last, how much they cost, or simply want to know what to expect before your first treatment, we’ve got you covered. Keep scrolling to find out everything you need to know about lip fillers.

Meet the Expert

• Dr. David Shafer is a double board-certified plastic surgeon and founder of Shafer Clinic Fifth Avenue.
• Dr. Michael Lin is a Los Angeles-based board-certified dermatologist who specialized in cosmetic and medical dermatology.
• Dr. Nina Naidu is a New York-based board-certified plastic surgeon specializing in aesthetic plastic surgery of the breast and body.

What Is Lip Filler?

Lip fillers—also called lip injections—refers to the process of filling the lips with material such as hyaluronic acid to create a fuller appearance, says Dr. Naidu. “And although we often think of them in relation to patients who desire increased volume, they can also be used to correct uneven lips, lift the corners of the mouth, and smooth out lip wrinkles, which become more prominent with age.”

Injection materials can also include body fat or implants, although hyaluronic acid—a naturally occurring substance in the body—is the most common type of filler used in lip treatments. The type of filler chosen depends entirely on what your goal is for the treatment, whether it be to balance out the shape of your lips or add fullness and structure.

Types of Lip Fillers

“The brand names that some people may be familiar with are Juvederm and Restylane,” says Dr. Shafer. “Historically, substances such as collagen and silicone were injected into the lips, but the modern hyaluronic acid-based fillers have proven superior in terms of biocompatibility and patient safety,” he adds.

For the most part, your board-certified provider will choose which injectable filler is right for you, so you don’t have to worry too much about making that decision. But, in general, Juvederm is described as a smoother formula; it may last longer and can be a bit pricier. Restylane on the other hand has a more granular feel and is favored for its ability to stay put, making it ideal for filling specific spots of volume loss.

Benefits of Lip Injections

While lip fillers have become synonymous with pumping up the volume, they come with a number of other benefits.

• Evens out asymmetrical lip shapes
• Adds natural fullness to desired areas
• Reduces the appearance of fine lines on the lips and surrounding mouth area
• Customizable based on needs and desires
• Reversible if results are not desirable

How to Prepare for Lip Injections

First things first: the consultation. “When a patient comes in asking for fuller lips, I like to start by discussing how they would like their lips to look,” Dr. Lin says. “This step is extremely important because I want to make sure that what they are looking for is achievable and will match the overall shape and structure of their face.” For example, if someone has smaller facial features, they may look strange with lips that are too full. “Different facial structures will dictate what lip shape and volume will be appropriate,” he says. “The lip shape is actually more important than the volume.”

Although it’s a little different than bringing in an inspirational photo for a haircut, having some reference photos to show your physician can be helpful. This will give them a better idea of the outcome you’re hoping for and they can tell you whether or not it’s achievable. You can also browse the Instagram of your injector to see what kind of work they do– this can be helpful in deciding whether they’re the right fit for your aesthetic goals, too.

Another prep step is to avoid certain things before your injectable appointment. Some medications and supplements, like aspirin and Omega 3, have a blood thinning effect, which can worsen your recovery. Think: swelling and bruising, so it’s best to skip those leading up to injection day. Alcohol is another culprit that’s best left for 24-48 hours post-filler.

What to Expect During Your Appointment

“Following the consultation during which we determine the patient’s goals, the lips are anesthetized and cleansed with alcohol,” says Dr. Naidu. “Filler is injected with a tiny needle into the areas that need volume, and the material is massaged gently to prevent the formation of lumps.” Each patient will vary in terms of how much filler they need– dictated by their anatomy– and the look that they are going for. “We never inject more than one milliliter (the size of most syringes) of filler during a given session,” explains Dr. Naidu. The entire process usually takes about 30 minutes. A milliliter of filler is also called a “cc.”

How Bad Is the Pain?

The ouch factor will vary from person to person, but to put it bluntly, the lips are sensitive, and without an anesthetic, the lip injections will feel like a very sharp pinch. According to Dr. Lin, there are options that contain lidocaine, a common local anesthetic, to make the process as painless as possible. (Both Juvederm and Restylane’s lip-specific formulas contain a small amount of the numbing ingredient in their filler.) Or, you can ask for a topical numbing cream to be applied 15 minutes before the treatment. “Sometimes, we do nerve blocks to numb up the entire lip area,” he says, adding that most patients can come in for a consultation and leave the same day with a plumper pout. If you’re concerned about the pain, ask for ice to be placed topically between injections.

How Long Does Lip Filler Last?

According to Dr. Shafer, hyaluronic acid fillers generally last in the range of 6-12 months. He says it’s not an “all or none” phenomenon; instead, the filler is metabolized over time. “A good analogy is when you fill the gas tank of your car. You don’t wait until your car is empty before topping off the tank. Similarly, if the filler has a duration of one year, you may do some maintenance treatments every six months to maintain consistent results,” Dr. Shafer explains.

Who Is a Candidate for Lip Filler?

It’s important to remember, as Dr. Shafer points out, nobody “needs” lip filler. The treatment is an elective aesthetic procedure that is meant to enhance. You may find yourself interested in lip filler if you’re looking to enhance your natural lip shape or plump up deflated lips. “Patients who have lost volume or definition with aging are great candidates,” he adds.

On the other hand, there are some medical conditions that may deem you ineligible for lip filler. Your derm or plastic surgeon will be able to assess you at your consultation in order to give you a definitive answer, but certain autoimmune diseases, diabetes, or taking certain medication can complicate the healing process or cause your body to reject the filler entirely.

Who Should Do Your Filler?

Although lip injections are minimally invasive, you’re still putting something in your body and it’s important to go to a qualified medical professional. It’s best to avoid med spas and instead, opt for board-certified dermatologists and plastic surgeons, who are highly skilled in the field of aesthetics and injectables.

Potential Side Effects

Like any cosmetic treatment, there’s a risk of potential side effects. Here are a few to look out for when it comes to lip filler:

• Swelling and bruising. “With any injection treatment, there is risk of bruising (about 5% risk) and swelling to some degree in most patients,” says Dr. Shafer.
• Lumps. “Lumps are rare, but can be treated with a special enzyme called hyaluronidase,” Dr. Shafer points out.
•  Inadvertent vascular injection leading to tissue necrosis.
• An unfavorable aesthetic outcome. Dr. Shafer says this could be a combination of injector inexperience, patient demands, and tissue reaction. “It’s always better to start slowly and conservatively and add more if needed than to inject too much and have over-inflated lips,” he says.  

The Results

As you can see, lip fillers can create a noticeably fuller appearance in the upper and lower lip, as well as an overall “poutier” appearance (not the larger gap between the upper and bottom lip in a resting position). However, it’s important to note that a qualified physician—which is the only person that should perform filler—will not be willing to overfill the lips. The goal is subtle fullness that enhances the lips without creating a “duck-like” appearance.

The Cost

Price varies significantly depending on the city and injector, but lip injections generally cost $500 to $1000 (however, in more expensive areas like New York City, you can expect a range closer to $900 to $1500). The average cost for lip injections at Dr. Lin’s office falls around $550 to $650 for a 1-cc syringe. However, some people might want a fuller look—which requires an additional syringe (and again, more expensive areas like NYC and LA will jack up these prices a bit higher).

Aftercare & Recovery

As with anything needle-related, there are a few essential aftercare instructions. Here’s what our experts recommend:

• No makeup or lip products for at least 12 hours.
• Avoid any hot beverages or spicy foods for several hours after the procedure.
• Sleep with your head elevated on two pillows to help decrease swelling.
• Avoid alcohol, Motrin, and Aspirin for the next 24 hours if you have bruising.
• Avoid any dental procedures for 2 weeks.
• No massage or firm pressure on the lips for at least a week.

The Final Takeaway

Lip fillers are a great option for plumping up deflated lips or enhancing your natural lip shape. The treatment has a fairly easy recovery process with minimal side effects (outside of bruising and swelling). Another plus is that it’s not permanent. If you are unhappy with the final look for any reason, simply wait a few months, and your lips will be back to their original shape. All in all, if you are willing to spend a few hundred dollars on the treatment, it’s a fairly harmless way to enhance one of your best natural features.

Article Sources

Byrdie takes every opportunity to use high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial guidelines to learn more about how we keep our content accurate, reliable and trustworthy.

1. Luthra A. Shaping lips with fillers. J Cutan Aesthet Surg. 2015;8(3):139-142. doi:10.4103/0974-2077.167269

2. Urdiales-Gálvez F, Delgado NE, Figueiredo V, et al. Preventing the complications associated with the use of dermal fillers in facial aesthetic procedures: an expert group consensus report. Aesthetic Plast Surg. 2017;41(3):667-677. doi:10.1007/s00266-017-0798-y