


11/30/2025
This is a procedure note for Potential Side Effects of Nasolabial Fold Fillers: A Comprehensive Guide to Migration and More at Beomgye(Opening Soon) KKEUT Korean Clinic.
Kkeut Clinic's Unique Difference: An Approach Free from Filler 'Migration'

While volumizing techniques like fillers have different names at each clinic, I always ask one thing.
How stably does this material remain in the treated area?
Kkeut Clinic's COVA deeply inserts collagen-regenerating material as a solid into the dermis.
This is why it can create such a difference.
Being a solid structure rather than a viscous gel, the likelihood of migration due to gravity or muscle movement is extremely low.
The targeting accuracy for the desired nasolabial folds is very high.
In the body, as your own collagen regenerates and matures, it fills the volume, leading to very natural results.
Compared to typical liquid collagen injections, the effect duration is longer (excellent structural integrity), and it provides a sufficient proliferation environment, leading to a greater 'extent of improvement'.
Notes on Nasolabial Fold Filler Side Effects
Now, let's talk about general nasolabial fold fillers. Most are hyaluronic acid-based viscous gel.
While design is important for safe and effective procedures, nasolabial folds have structural risks we should be aware of due to the material's characteristics.
1. Highly Mobile Area = Easier Migration
Nasolabial folds are among the facial expressions with the largest range of motion, one of the areas that possess it.
While highly viscous gel fillers show significant 'plumpness' immediately after injection,
due to muscle contractions, gravity, and repetitive mouth movements, there is a possibility of microscopic migration or diffusion outside the injection plane.
Basic physics suggests that if a viscous substance is injected into the pulley areas where skin slides and folds, it can flow independently of the design.
Nasolabial folds are also anatomically adjacent to the lip muscle (Orbicularis oris), moving thousands of times daily and subjected to pressure.
Consequently,
the characteristic of the area being 'alive' paradoxically creates conditions where migration can occur most easily. is the case.
2. Why 'Dissolving' Is Not Always the Answer
Hyalase, commonly used for filler removal,
theoretically breaks down hyaluronic acid, but
in reality,
the injected filler may not exist only in the lumped form we imagine,
and it can be microscopically diffused across various planes and subcutaneous anatomical layers,
making it clinically very difficult to control it to 'neatly act only on the desired line'.
From an empirical perspective,
when fillers are dissolved, the volume of surrounding normal tissue also partially decreases, and cases where wrinkles deepen or hollowness becomes more pronouncedare quite often observed.
This is not due to incorrect use of Hyalase, but rather, an already predictable area from the choice of material structure.
3. Side Effects of Protruding Mouth (Protrusion Sensation)
Gel fillers
must be 'longitudinally' positioned to match the sunken volume loss pattern and vector lines of the entire nasolabial fold to blend naturally with our facial proportions.
However,
the significant swelling visible immediately after the procedure
more than the desired hollowing vectorthe phenomenon of excessive anterior volume creation
due to muscles and pressure around the mouth increased local projection
If these combine
Projection side effects where the mouth appears slightly protruded.This can lead to such effects.
Patients often express it as, “I just wanted my laugh lines to fill in beautifully, but now my mouth feels like it’s protruding.”
That's right.
While the target is the folded groove, the outcome can be perceived as a change in the overall facial proportions; this is characteristic of filler treatments.This is precisely the nature of it.
Treatments that work especially well together.