Lip Filler Types: What Criteria Should You Use to Choose?

If you look into the types of lip fillers, you will eventually reach one conclusion: the de facto standard for fillers currently used on lips is hyaluronic acid (HA) fillers. The lips are an area that is constantly moving, speaking, eating, and smiling. Therefore, 'whether it can be undone if you do not like it' becomes more important than any other condition.

This is exactly why hyaluronic acid fillers are chosen. It is thanks to its reversibility, which allows it to be dissolved within hours to a few days with an enzyme injection called hyaluronidase. On the other hand, non-HA ingredients such as calcium hydroxylapatite (CaHA), poly-L-lactic acid (PLLA), and PMMA are either not recommended for the lips or should be approached with caution. This is because there is no dissolving agent, or they carry problems such as nodules and difficulty in removal. In this article, we will examine the nuances of each product, focusing on Renephil, Rejuviel W, Restylane Kysse, Atiere, and Lorient.

💧 What is Hyaluronic Acid (HA), the Standard for Lip Fillers

Hyaluronic acid is a polysaccharide that originally exists naturally in our bodies. It has the property of attracting moisture up to hundreds to 1,000 times its own weight, making it suitable for adding natural volume and hydration to the lips.

Here, the key technology that determines the character of the filler is **cross-linking**. This is the process of creating a structure by bridging hyaluronic acid molecules together. The higher the degree of cross-linking, the higher the viscoelasticity and durability. However, because it tends to become firmer accordingly, how each product achieves this balance is key in areas like the lips where softness is vital.

Most HA fillers contain a local anesthetic ingredient called lidocaine to reduce pain during the procedure. Therefore, lip fillers these days take less time than you might think (roughly within 10 to 30 minutes) and are relatively low-burden.

📌 Key Summary: The standard for lip fillers is HA fillers, and the reversibility that allows them to be dissolved and the balance of cross-linking are the core pillars of choice.

🔍 Characteristics of Renephil, Rejuviel W, Restylane Kysse, Atiere, and Lorient

Now to the main point. Although all five fillers are hyaluronic acid-based, they have slightly different characteristics in texture, finish, and purpose. It is easy to understand if you think of them as heading toward the same destination, the lips, but taking different paths.

Renephil

Renephil is an HA filler that emphasizes a soft texture, aiming to blend smoothly into areas with a lot of delicate movement, such as the lips. Because it is not excessively firm, it is good for expressing natural volume, and contains lidocaine to ease the burden of the procedure.

Rejuviel W

Rejuviel W is a product with a finish that focuses on hydration and moisture. It can be seen as suitable for those who are concerned about fine lines or dryness on the surface of the lips, and want a 'smooth and vibrant feel' rather than excessive volume.

Restylane Kysse

Restylane Kysse, as the name suggests, is a line designed specifically for lips. As expected from the Restylane family with its extensive clinical data, it features elasticity and a natural texture that considers the flexible movement of the lips. It is classified as a product designed with a 'movement-following' character to reduce awkwardness when smiling or speaking.

Atiere

Atiere is an HA filler used to balance contour and volume. It is selected when you want to define the lip line clearly while capturing overall volume at the same time.

Lorient

Lorient is a product that emphasizes smooth injection and natural settling, aiming to spread evenly without causing the lip surface to look bumpy or uneven.

The important thing is not which product is 'the best,' but choosing the right finish for your specific lip concerns. Your choice will vary depending on whether you want to clearly define the Cupid's bow (the M-shaped curve in the center of the upper lip), fill overall volume, or smooth out the surface.

📌 Key Summary: All five products are HA-based, but their emphasis points such as softness, hydration, elasticity, contour, and settling are different, so you can choose according to your concerns.

⏳ How Do the Duration and Types by Purpose Differ?

The duration of lip fillers is generally considered to be 6 to 12 months on average. Broadly speaking, it ranges from 3 to 18 months, and this variation depends quite heavily on an individual's metabolism and the amount of lip movement. People who talk and eat a lot tend to absorb it relatively quickly.

HA fillers can be broadly categorized according to their purpose.

• Soft Type: Soft and natural volume, most commonly used for lips

• Volume Type: More defined volume, with a higher degree of cross-linking

• Line & Contour Type: Clearly defines the lip borders and Cupid's bow

• Skin Booster Type: Focuses on moisture and texture improvement rather than volume

Volume types with higher cross-linking last longer but may be less natural, while soft types are gentle but have slightly shorter durability. Ultimately, understanding that 'durability' and 'naturalness' are traded off to some extent makes it easier to adjust your expectations.

📌 Key Summary: Duration is usually 6 to 12 months, and since durability and naturalness conflict depending on the type, choose according to your purpose.

📐 Natural Lips, What Criteria Should Be Used to Design Them?

The direction of lip treatments that Onlif Clinic believes in is not 'changing' but 'restoring the natural balance.' Rather than forcing changes to the shape of the eyes, nose, and mouth, it is about naturally refining the proportions and texture.

A frequently referenced value in lip design is the ratio of the upper lip to the lower lip. Usually, about 1:1.3 to 1:1.6 is seen as a natural reference value. In addition to this, the sharpness of the Cupid's bow and harmony with the corners of the mouth are considered to look at the overall impression.

Therefore, if it is your first procedure, the 'start low' principle is safe. The standard injection amount per session is about 0.5 to 1.0 ml, but it is a step-by-step approach to start with a small amount of 0.5 ml or less for the first treatment, and make additional corrections 2 to 3 weeks later after the swelling has subsided, which makes the results more predictable.

The lips are an area where hands-on expertise differs greatly by field. This is why Onlif's oriented physician specialization system—where doctors focus on the procedures they perform best—is particularly meaningful in delicate lip design.

📌 Key Summary: Refer to the 1:1.3 to 1:1.6 ratio, but it is safe to start small with 0.5 ml or less for the first treatment and make corrections 2 to 3 weeks later.

⚠️ Precautions You Must Know Before and After the Procedure

Although lip fillers are relatively simple procedures, there are points where knowing them can change the outcome.

Before the procedure, it is recommended to adjust medications that can cause bruising in advance—such as aspirin, omega-3, vitamin E, etc. If you have a history of lip herpes (herpes simplex virus, HSV), it can be reactivated by the stimulation of the filler, so preventive antiviral medication is recommended.

After the procedure, swelling is most severe on the 2nd to 3rd day, and generally stabilizes within 1 to 2 weeks. It is correct to evaluate the final result about 2 weeks later when the swelling has subsided. During this period, it is best to avoid saunas, excessive drinking, and strenuous exercise.

One phenomenon to be aware of. The **Tyndall Effect** is an optical phenomenon in which the filler appears bluish through the skin when injected too shallowly. A benefit of HA fillers is that if this occurs, it can be corrected by dissolving the area with hyaluronidase.

This is the most important warning. **Vascular Occlusion** is a rare but most serious complication. If symptoms such as skin blanching (turning white), severe pain, or blurred vision appear, immediate emergency treatment by medical staff is required. Therefore, using genuine products and having an emergency response system is far more important than price.

📌 Key Summary: Adjusting bruising-inducing medications, managing herpes history, and evaluating results after 2 weeks are fundamental, and any signs of vascular occlusion require immediate emergency treatment.

🩺 Are There Other Options Besides Lip Fillers?

As a non-filler method for lip volume, there is autologous fat grafting. However, it has limitations in that the engraftment rate is difficult to predict, and fine adjustments are not as easy as with HA fillers in areas that require detailed contour control like the lips.

In the past, collagen fillers were also used, but they are not the mainstream of lip fillers now. CaHA (such as Radiesse) is not officially indicated for the lips and is not recommended due to the risk of nodules, and PLLA or PMMA should also be approached with caution on the lips because there are no dissolving agents or they are difficult to remove.

Onlif aims for non-surgical procedures from a dermatological perspective, rather than incisional surgery. We look at the balance of the overall impression by using skin boosters along with lip fillers to cultivate the lip and skin texture together, or by designing in harmony with Botox and lifting.

📌 Key Summary: Autologous fat has limitations in fine adjustments and non-HA fillers are not recommended for the lips, so HA fillers are the most realistic choice.

❓ Frequently Asked Questions (FAQ)

Which type of lip filler is used the most?

Hyaluronic acid (HA) fillers are the de facto standard. They are most widely used for lips due to their reversibility, allowing them to be undone with a dissolving enzyme, and their natural texture.

How long do lip fillers last?

It is 6 to 12 months on average. There are variations depending on individual metabolism and lip movement, ranging from as short as 3 months to as long as 18 months.

Can lip fillers be dissolved?

If they are HA fillers, yes. Injecting an enzyme called hyaluronidase will dissolve them within hours to a few days. This is one of the key reasons for choosing HA fillers.

If it's my first time, how many ml is appropriate?

While the standard injection amount per session is 0.5 to 1.0 ml, we recommend starting with a small amount of 0.5 ml or less for the first treatment. It is more natural to add further corrections after the swelling subsides in 2 to 3 weeks.

What are the characteristics of Restylane Kysse?

It is a line designed specifically for lips, featuring elasticity and a natural texture that considers the flexible movement of the lips. It is designed to minimize awkwardness when smiling or speaking.

What is the difference between soft type and volume type?

The soft type focuses on soft and natural volume, while the volume type focuses on more defined volume. Because the volume type has higher cross-linking, it lasts longer but may be less natural.

If I have a history of herpes, can I not get lip fillers?

It is not an absolute contraindication, but since herpes simplex can be reactivated by the stimulation of the filler, preventive antiviral medication is considered. It is highly recommended to share your medical history before the procedure.

What symptoms appear when vascular occlusion is suspected?

Symptoms such as skin turning white, severe pain, blurred vision, or severe headache may appear. Although rare, it is the most serious complication, so immediate treatment by medical staff is required.

Things to Check Before Choosing a Clinic for Hyaluronic Acid Lip Fillers

Even for the same procedure, the results and recovery process vary depending on where, by whom, and how it is performed. Asking the following questions during your consultation will help you make a decision.

• Is it a place that performs this procedure frequently? — Different clinics focus on different procedures. Check if they regularly perform hyaluronic acid lip fillers.

• Can you verify the products and equipment used? — Ask if you can confirm the product name and authenticity (whether it is an officially imported/approved product and if there is an unboxing verification process) during the consultation.

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

• Do they design with the entire face in mind? — Even for the same procedure, the injection location and amount vary depending on face shape, skin condition, and left-right asymmetry.

• Do they explain adverse reactions and the recovery process first? — It is better to judge a clinic that informs you of potential adverse reactions and coping methods together, rather than a consultation that only talks about expected changes.

• Is there a channel to check in after the procedure? — Check if the follow-up timeline, how to contact them if there is an issue, and criteria for re-visiting are established.

Onlif Clinic Performs Hyaluronic Acid Lip Fillers Like This

• We divide responsibilities — With the belief that one doctor cannot cover all procedures masterfully, Onlif divides medical staff by field of expertise.

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

• Costs are guided along with the plan after diagnosis — Since the area, volume, and scope differ for each person, we explain what costs what together.

• We design by looking at the balance of the entire face — We view the face through three axes: texture, balance, and youthfulness, and set a plan in the direction of refining parts that overshadow your natural impression rather than changing shapes.

• We discuss adverse reactions and the recovery process first — Along with the changes you can expect, we guide you through 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 guide you on re-visiting and communication channels.

If you are considering hyaluronic acid lip fillers, it is best to first check what is possible and what is difficult in your current state. 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.