Ellansé is a PCL-microsphere booster that stimulates your own collagen, lasting 1-4 years.
When looking into Ellansé dermal fillers, many people find themselves most confused about why they last so much longer than regular HA fillers. To put it simply, Ellansé belongs to a booster category that stimulates your skin to produce its own collagen, which is fundamentally different from HA fillers that are simply absorbed.
What kind of filler is Ellansé?
Ellansé is a collagen-stimulating filler that suspends polycaprolactone (PCL) microspheres in a carrier gel. Similar to traditional HA fillers, it creates immediate volume, but it is also designed to gradually stimulate your own collagen production over time for long-lasting, cumulative results.
Fillers are categorized as treatments that create natural-looking results through gradual enhancement, and Ellansé is classified specifically within that group as a "long-lasting, collagen-inducing" option.
To sum up the core mechanism in two points:
Immediate + Gradual Results — Provides instant volume right after the treatment, followed by texture improvement through collagen stimulation.
PCL Degradation & Collagen Regeneration Cycle — The key mechanism that allows results to last anywhere from 1 to 4 years.
This unique process is what sets Ellansé apart.
PCL (Polycaprolactone)*: A proven, biodegradable medical polymer used in absorbable surgical sutures. It naturally stimulates your own collagen production over time.

The Secret to 2-Year Longevity — The Collagen Stimulation Mechanism
The reason Ellansé lasts so long is due to its dual-phase mechanism:
Phase | Timeline | How It Works |
|---|---|---|
Phase 1 — Carrier Gel Effect | Immediately after ~ 3 months | Creates instant volume, then gradually absorbs. |
Phase 2 — PCL Collagen Stimulation | 3 months ~ 24 months | PCL degrades while naturally stimulating your own collagen production. |
Complete Degradation | 12 ~ 36 months (by type) | PCL is fully absorbed, leaving behind only your own natural collagen. |
While you might worry that volume will decrease as the carrier gel absorbs, your own newly formed collagen fills the space, beautifully maintaining the volume. This is quite different from HA fillers, which simply add temporary volume and then disappear once absorbed.
Depending on the type of Ellansé selected (S, M, L, or E), the size of the PCL microspheres varies, which determines the duration of the results:
Type | Description |
|---|---|
S (Short) | Lasts about 1 year — Perfect for delicate facial areas |
M (Medium) | Lasts about 2 years — Suitable for moderate volume enhancement |
L (Long) | Lasts about 3 years — Designed for deeper volumizing |
E (Extended) | Lasts about 4 years — Designed for deep contouring |
The formulation is carefully selected based on your target areas and desired longevity.
Microspheres*: Microscopic spherical particles. The PCL microspheres in Ellansé are the key to stimulating collagen.

Key Differences from HA Fillers
Since the differences between Ellansé and HA fillers can be confusing, here is a simple comparison:
Feature | HA Filler | Ellansé |
|---|---|---|
Ingredients | Hyaluronic Acid | PCL + Carrier Gel |
Immediate Effect | High | High |
Duration | 6 ~ 12 months | 1 ~ 4 years (depending on the type) |
Collagen Stimulation | Mild | Strong |
After Absorption | Dissolves completely | Maintained by your own collagen |
Natural Look | Immediately natural | Becomes progressively more natural |
Reversibility | Can be dissolved (using hyaluronidase) | Cannot be dissolved (requires natural degradation) |
The most important difference is that Ellansé "cannot be dissolved." While HA filler can be quickly dissolved with hyaluronidase if needed, Ellansé must be left to degrade naturally over time. For this reason, choosing an experienced medical team and having a thorough, personalized consultation beforehand is of the utmost importance.

Pre-Treatment Check — Is it right for you?
While Ellansé is fantastic, it may not be suitable for everyone. Please review the following checklist beforehand:
Condition | Details |
|---|---|
Pregnancy or Breastfeeding | Insufficient safety data available |
Active inflammation or acne in the target area | Not recommended during active breakouts |
History of keloid scarring | Potential risk of nodule formation |
Autoimmune disorders | Difficult to predict how the skin will react |
Taking blood thinners | Increased risk of temporary bruising and swelling |
Desiring significant overall facial volume | Combining with HA fillers is often recommended |
Desiring short-term (few months) results only | An HA filler is a more suitable option |
Please inform your doctor immediately if any of the following apply to you:
A history of adverse reactions to collagen-stimulating treatments
Previous treatment with permanent fillers (e.g., silicone) in the target area
Suspected allergies to PCL or the carrier gel ingredients
Pre-treatment safety guidelines also emphasize the importance of your provider's extensive experience and a detailed pre-consultation if you have had permanent or semi-permanent fillers in the past.

Frequently Asked Questions
Q. Does Ellansé really last 2 to 4 years?
A. Yes, clinical reports generally show that the results last as expected depending on the formulation (M lasts 2 years, L lasts 3 years, and E lasts 4 years). However, individual results can vary depending on your personal metabolism, muscle movement in the treated area, and your body's collagen-producing capacity. In some cases, the effects may fade a year earlier or last longer than the average.
Q. What happens if there are side effects?
A. Since hyaluronidase (which dissolves HA fillers) does not work on PCL, any issues like nodules, excess volume, or asymmetry will require medical removal or waiting for the product to degrade naturally (which can take several months to over a year). To ensure a beautiful and safe result, it is generally recommended to start with a conservative dosage for your first treatment.
Q. Can I get Ellansé and HA fillers together?
A. Yes, they are often paired beautifully. Ellansé can be used to stimulate collagen in the deeper layers of the tissue, while HA filler adds immediate volume to the shallower layers. However, the timing, target areas, and precise dosage must be customized by an experienced practitioner. Please have a detailed consultation before deciding on a combination treatment.
Please note that this article is for general informational purposes only. To determine your suitability for this treatment, we invite you to consult with a qualified medical professional.

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