Bio-Remodelling vs Dermal Fillers: What's the Difference?

I get asked this question at least three times a week. A client sits down for a consultation, points at their face, and says something like "my skin just doesn't look as fresh as it used to, but I don't want to look fake." Then they ask whether they need filler, or whether they should try this bio-remodelling thing they've seen on Instagram.

Most of them think bio-remodelling and dermal fillers are basically the same thing with different names. They're not. They're two completely different treatments that do two completely different jobs, and choosing the wrong one is a waste of your money.

So let me explain what each treatment actually does, when I recommend one over the other, and when combining them gives the best results.

The simple version: what each treatment is designed for

Dermal fillers add volume and structure. They're used to plump areas that have lost volume, contour features like the cheeks or jawline, define the lips, or smooth deep static lines. They physically take up space where something is missing.

Bio-remodelling improves the quality of the skin itself. It doesn't add volume or change your shape. Instead, it stimulates your skin to produce its own collagen and elastin, leading to better hydration, firmness, elasticity, and overall texture over weeks and months.

If your concern is "I've lost cheek volume" or "my lips are flat," that's a filler conversation. If your concern is "my skin looks dull, crepey, or dehydrated," that's a bio-remodelling conversation. They solve different problems.

I currently offer bio-remodelling treatment at ReflectorN, and it's become one of my most-requested treatments for clients in their 40s and 50s who don't want to look "done" but want their skin to look better.

What are dermal fillers, exactly?

Dermal fillers are gels made from cross-linked hyaluronic acid (HA), placed under the skin to add volume and create structure.

The HA in fillers is heavily cross-linked. This means the molecules are bonded together in a way that makes the gel stay where I put it, holds its shape, and resists being broken down by the body for several months. Different filler products have different levels of cross-linking, which affects how soft or firm they feel and how long they last.

I use fillers for things like:

• Restoring volume to cheeks that have lost fat with age

• Adding fullness to thin or asymmetric lips

• Defining the jawline or chin

• Filling deep nasolabial folds or marionette lines

• Correcting tear trough hollows under the eyes

Results from dermal fillers are visible immediately. You walk out with the change already done, with final results visible once any initial swelling settles around two weeks. Most fillers last 6 to 18 months depending on the product and the area treated. I've written more about how long results last in our guide on lip volume treatment, and the same principles apply to fillers in other areas.

What is bio-remodelling, exactly?

Bio-remodelling is a newer category of injectable. The most well-known brand globally is Profhilo, which is what most people are referring to when they say "bio-remodelling."

The product is also hyaluronic acid, but it's chemically different from filler HA in two important ways. First, it's not cross-linked, or only very lightly cross-linked. Second, it contains an extremely high concentration of pure HA (Profhilo contains 64mg of HA per 2ml, one of the highest concentrations in any injectable on the market).

When injected, this non-cross-linked HA doesn't stay in one spot like a filler does. It spreads out beneath the skin and acts as a biostimulator, telling your skin cells to produce more of their own collagen and elastin. Over the next 4 to 8 weeks, the quality of your skin gradually improves from within.

I use bio-remodelling for things like:

• Skin that looks dehydrated or dull despite a good skincare routine

• Early skin laxity (looseness) on the face or neck

• Crepey skin texture, especially around the cheeks and jaw

• Fine lines that aren't deep enough to need filler

• Improving overall skin "glow" without changing facial features

• Pre-treatment before significant filler work, to give the skin a stronger base

Results aren't immediate. You might notice some improved hydration within a week, but the full bio-remodelling effect develops over 4 to 8 weeks as new collagen and elastin form.

The key differences at a glance

Feature	Dermal Fillers	Bio-Remodelling
Main purpose	Add volume and structure	Improve skin quality
Product type	Cross-linked HA gel	Non-cross-linked, ultra-pure HA
How it works	Physically fills space	Stimulates collagen/elastin
Results timeline	Immediate (final at 2 weeks)	Gradual (4-8 weeks)
Treatment course	Usually 1 session	Usually 2 sessions, 4 weeks apart
Duration of results	6-18 months	6-9 months
Best for	Volume loss, contouring	Skin quality, hydration, laxity
Injection points	Few, targeted	5 strategic points per side (BAP technique)

When I recommend dermal fillers

In my consultations, I look for specific signs that filler is the right answer.

Visible volume loss. When I can see that the cheeks have flattened, the under-eye area has hollowed, or the lips have lost their natural fullness, filler is the right tool. Bio-remodelling can't replace lost volume.

Asymmetry or feature definition needed. If one cheek is fuller than the other, the chin lacks projection, or the jawline needs sculpting, these are structural concerns that require fillers.

Deep static lines. Lines that are visible even when your face is at rest, like deep marionette lines or nasolabial folds, often need filler underneath to lift the tissue.

Lip enhancement. Bio-remodelling isn't designed for lips. Any time we're working on lip shape, definition, or volume, we're talking about HA dermal filler.

Younger clients in their late 20s and 30s with thin lips, asymmetric features, or naturally flat cheeks are usually filler candidates. Older clients with visible volume loss are also typically filler candidates, though we often combine with bio-remodelling.

When I recommend bio-remodelling

Bio-remodelling is the right answer when the issue is skin quality, not facial structure.

Skin laxity without significant volume loss. Some clients have great underlying bone structure and still have their natural facial volume, but their skin is starting to feel less firm. Bio-remodelling addresses this directly.

Dehydrated or crepey skin. If your skincare isn't keeping up and your skin looks dull, dry, or crepey, bio-remodelling treats the skin from the inside out.

You want to look fresher without looking different. Some clients are nervous about filler because they don't want anyone to notice. Bio-remodelling improves skin quality so subtly that no one will know you've had anything done — but you'll look noticeably better in photos and in the mirror.

Pre-treatment before fillers. I sometimes recommend bio-remodelling before someone starts on a filler journey, especially for clients with very dehydrated or thin skin. Better skin quality means better filler results.

Neck and décolletage. Bio-remodelling is one of the few injectable treatments that works well on the neck. Filler in the neck is rarely a good idea — bio-remodelling is.

Most of my bio-remodelling clients are women in their late 30s through 60s. The treatment works best for skin that has lost quality but still has structure.

Can I combine bio-remodelling and dermal fillers?

Yes, and for many clients this is the ideal approach.

Think of it like a layered strategy. Fillers create the structure — restoring volume, defining contours, sculpting features. Bio-remodelling then improves the skin quality on top of that structure, so the result doesn't just look fuller, it looks fresher.

The combination works particularly well for clients in their 40s and 50s who are addressing both volume loss and skin quality decline at the same time. I usually space the treatments out, doing filler first, then starting bio-remodelling two to four weeks later once any filler swelling has settled.

Some clients do filler annually for maintenance, with bio-remodelling done as two sessions twice a year. Others do an intensive combined approach in their first year, then maintenance after that.

We'd talk through the right schedule for your specific goals during a consultation. Every face is different, and the right approach depends on your starting point.

The two treatments feel different.

Dermal fillers typically involve fewer injection points but in more sensitive areas. The lips, tear trough, and lip lines can be more tender. Most fillers now contain lidocaine (a numbing agent), so discomfort decreases as we progress through the treatment.

Bio-remodelling uses what's called the BAP technique (Bio Aesthetic Points), where I place 5 strategic injection points per side of the face. The needle is fine and the product flows easily, so most clients describe it as more comfortable than filler. The whole face can be treated in 10 to 15 minutes.

After both treatments, you'll notice some swelling and possibly small bumps at the injection points. With filler, the bumps flatten and you see the result immediately. With bio-remodelling, the small bumps take a few hours to spread and absorb, looking slightly elevated until then.

Downtime is minimal for both. I tell clients to avoid intense exercise for 24 hours, skip alcohol on the day, and avoid facials or skin treatments for two weeks. Most clients return to normal activities straight away.

For a more detailed look at aftercare and what to expect, our FAQ page covers post-treatment care for both filler and bio-remodelling.

How to choose: a simple decision framework

If you're still not sure which treatment is right for you, ask yourself these questions:

1. Do I want to change my face shape or facial features?If yes, that points toward filler. If no, that points toward bio-remodelling.

2. Is my main concern volume loss, or is it skin quality?Volume loss = filler. Skin quality = bio-remodelling.

3. Do I want immediate results, or am I happy to wait for gradual improvement?Immediate = filler. Gradual = bio-remodelling.

4. Am I trying to address one specific area, or improve my whole face?One specific area = filler. Whole face = bio-remodelling.

5. Do I want this to be noticeable to others, or invisible?Noticeable change = filler. Invisible improvement = bio-remodelling.

Most clients land somewhere in the middle, which is why combination treatment is so common in my practice.

Frequently asked questions

Is bio-remodelling the same as Profhilo?

Profhilo is the most well-known bio-remodelling product brand, but it's not the only one. The category of "bio-remodelling" describes any treatment that uses HA to stimulate collagen and elastin rather than to add volume. In Australia, several products fall into this category and are used by qualified cosmetic injectors.

Is bio-remodelling safer than dermal fillers?

Both treatments are safe when performed by an experienced, AHPRA-registered cosmetic injector. Bio-remodelling has a slightly lower risk profile because it doesn't involve placing product in specific anatomical locations near blood vessels (a key consideration in filler safety), but both are considered low-risk procedures when done correctly.

Which one lasts longer?

Dermal fillers generally last longer than bio-remodelling — typically 6 to 18 months for fillers versus 6 to 9 months for bio-remodelling. However, "lasts longer" can be misleading because the two treatments are doing different things. Filler is replacing volume that will gradually be metabolised. Bio-remodelling is stimulating your own collagen production, which has a more cumulative effect over multiple sessions.

Can I have bio-remodelling instead of filler if I want lip enhancement?

No. Bio-remodelling isn't designed for lip enhancement. For lip volume, definition, or shape, you need dermal filler. Read our complete guide on lip volume treatment for more detail.

Can bio-remodelling tighten loose skin?

Bio-remodelling can improve mild to moderate skin laxity by stimulating collagen and elastin. For significant skin laxity, more aggressive treatments like RF microneedling, threads, or surgical options may be more appropriate. I'll always be upfront about whether bio-remodelling is realistic for your specific concerns.

How much does bio-remodelling cost compared to dermal fillers?

Australian AHPRA regulations prevent cosmetic clinics from publishing injectable pricing online. Both treatments are quoted during your consultation based on the product and amount required for your individual goals. A typical bio-remodelling treatment course (2 sessions) and a single dermal filler treatment can be similar in cost, though this varies.

Will I need ongoing treatments?

For dermal fillers, maintenance treatments are usually needed every 6 to 18 months depending on the product and area. For bio-remodelling, the standard protocol is 2 sessions 4 weeks apart, then maintenance every 6 to 9 months. Both treatments can be stopped at any time — the effects gradually wear off and your skin returns to its baseline.

Ready to figure out which is right for you?

The honest answer is that this conversation works best in person. I can look at your skin, assess your concerns, and tell you exactly which treatment, or combination, will give you the best result for your specific situation.

Every consultation at ReflectorN is complimentary and pressure-free. We'll talk through your goals, I'll explain my recommendation, and you can decide in your own time whether you want to proceed.