Filler Dissolving (Hyaluronidase): How It Works, Cost and Who Does It

"Filler dissolving" is the shorthand for injecting an enzyme called hyaluronidase into an area where hyaluronic acid (HA) filler sits.

The enzyme breaks hyaluronic acid down, which is why HA is the one material this treatment works on.

Cleveland Clinic describes hyaluronidase as dissolving HA filler wherever it is placed — cheeks, lips and lower eyelids, among other areas — while other filler materials do not dissolve with it.

In the US, the hyaluronidase products used in medicine include Hylenex recombinant, a human recombinant hyaluronidase, and Amphadase, a purified bovine testicular hyaluronidase — both supplied as 150 USP units/mL single-dose vials.

These are drug products with their own FDA labels.

The labels list three approved uses: an adjuvant for subcutaneous fluid administration (hydration), increasing the dispersion and absorption of other injected drugs, and subcutaneous urography, an imaging test.

Dissolving filler appears on none of them, which makes filler dissolving an off-label use — it is not on any current US label for these products.

The same is true of the emergency use described later in this guide.

The enzyme itself is not new: a 2021 UK clinical guideline notes hyaluronidase was first used in general medicine in 1949 and has since gained widespread use in aesthetic medicine to dissolve HA-based dermal fillers.

Hyaluronidase breaks down hyaluronic acid — and no other filler material.

FDA groups US dermal filler materials into absorbable ones — hyaluronic acid, calcium hydroxylapatite (CaHA) and poly-L-lactic acid (PLLA) — and one non-absorbable material, PMMA microspheres in bovine collagen.

Of those groups, only the HA fillers dissolve with hyaluronidase.

Several of the best-known filler brands are HA gels: Juvéderm and Restylane products are crosslinked hyaluronic acid gels with lidocaine.

At dissolving time, the question that matters is not the brand family but which exact product sits in the tissue.

Two well-known fillers sit outside the dissolvable group. Radiesse is made of calcium hydroxylapatite, not hyaluronic acid, so it does not dissolve with hyaluronidase — "reversible" is not a claim its material supports. Sculptra is poly-L-lactic acid, and it has no reversing agent at all: unlike HA fillers it is not dissolved by hyaluronidase, and its label lists nodule treatments such as massage, corticosteroids, saline injection, subcision and surgery instead.

FDA adds a caution that applies to every removal attempt: removing filler can require injections, surgery or other interventions with their own risks, and removal may be difficult or impossible — especially for permanent fillers or fillers not made of hyaluronic acid.

The clinical literature describes dissolving for specific problems, not as routine maintenance.

Under the eyes, oculoplastic surgeons note that hyaluronidase injection is generally effective at reducing overcorrection or migration of HA filler, and that injectors should suspect prior filler — migration, or a Tyndall effect (a bluish discoloration) — in patients presenting for evaluation.

How often does it come up?

In one UK practice's series of 1,452 tear-trough (under-eye) filler applications in 583 patients, filler was dissolved in 1.9% of orbits.

Delayed swelling is part of that area's picture: a 2021 review of periocular fillers reported malar edema — a delayed swelling unique to the under-eye area — in 11% of patients, and noted it can be managed with hyaluronidase when an HA filler was used.

The same UK series also found that patients who had filler dissolved before were significantly more likely to need dissolving again after re-injection.

Emergencies are the other setting.

Expert reviews name prompt recognition and immediate hyaluronidase as the mainstay of treating HA-filler vascular occlusion, and recommend preparedness — a "filler crash cart" and an in-office action protocol with treatment agents readily available.

That emergency use is off-label too, by the same label logic as every other dissolving use.

The mechanics are simple to describe: hyaluronidase is injected into the area where the HA filler sits, and the enzyme breaks the hyaluronic acid down.

Speed is where expectations need calibrating.

Cleveland Clinic says you may notice some results immediately, but full results can take up to two weeks, because HA can take that long to break down completely.

For lips specifically, it says the entire treatment may take between 10 and 15 minutes, usually done in one to two visits — and possibly more sessions when there is a large amount of filler or nodules.

Two limits are worth holding onto. "Instant" oversells it: minor bruising and swelling from lip dissolving can last up to a week, per Cleveland Clinic, and the endpoint sits up to two weeks out.

And removal is not a measured science — the Juvéderm safety information states that the effectiveness of removal of any dermal filler has not been studied.

The enzyme is not selective about which hyaluronic acid it breaks down, either: it also dissolves the naturally occurring HA in your lips, so lips may look thinner after dissolving.

We could not confirm a price.

In the research behind this page, checked on 2026-10-20, no ASPS, manufacturer or review-site source we found published a typical price for filler dissolving, so we will not quote a national average — the price has to come from the clinic itself.

Two reference points, each scoped to what it actually measures.

ASPS lists an average cost of $715 for hyaluronic acid fillers — average fees reported by ASPS member plastic surgeons, a figure for filler itself, not for dissolving it.

And Juvéderm's maker does not publish a price either: Allergan says only that pricing varies by the Juvéderm product, the amount used and the provider.

What a dissolving quote should cover is the useful question.

Session count varies — Cleveland Clinic says lip dissolving is usually done in one to two visits, and may take more when there is a large amount of filler or nodules.

Before booking anywhere, ask what the fee includes, whether a second visit costs extra, and get the total in writing.

The most frequently reported hyaluronidase adverse reactions are mild local injection-site reactions such as redness and pain, per the Hylenex label.

Cleveland Clinic's list of possible reactions from dissolving adds bruising, itching, pain, rash, discoloration and swelling, and says minor bruising and swelling from lip dissolving can last up to a week.

Allergy is the risk the labels put numbers on.

Hyaluronidase labels state that allergic reactions (urticaria or angioedema) have been reported in less than 0.1% of patients receiving hyaluronidase, and that known hypersensitivity to hyaluronidase is a contraindication.

Anaphylactic-like reactions have occurred rarely — reported after retrobulbar block or intravenous injection in medical use.

Note the scope of that 0.1% figure: it comes from the products' general medical use, not from filler dissolving specifically.

Practitioner experience points the same direction, with one honest exception.

In a 2024 survey of 264 practitioners, 92% had never seen an acute reaction to hyaluronidase and just over 1% had ever observed anaphylaxis; 5% reported longer-term adverse effects, including three respondents who reported loss of deep tissue.

The survey's authors note there are no official guidelines on hyaluronidase use in aesthetic practice, so storage, preparation and skin-testing practices vary.

If new filler is the plan, the enzyme sets the schedule.

Cleveland Clinic advises waiting at least 14 days after dissolving before injecting new lip filler, because HA can take up to two weeks to fully break down.

The 14-day interval is lip-specific guidance; the timing for any other area is a licensed provider's call, made once the area has settled.

There is under-eye evidence worth knowing before a refill too: in the UK tear-trough series, patients with a history of dissolving were significantly more likely to need dissolving again after subsequent re-injection of under-eye filler.

One series cannot predict any individual's result, but it is the kind of history a provider will weigh before re-treating an area.

Refilling is also a fresh product decision: which exact filler is approved for the area, and what it costs, are separate questions from the dissolve.

The lip filler and under-eye filler guides cover those product questions for the two areas most of this page's evidence comes from.

Because dissolving is an injectable drug treatment, the first gate is who is allowed to hold the syringe — and that is state law.

AmSpa, the American Med Spa Association, describes the general picture: injecting a prescription drug such as botulinum toxin is the practice of medicine, so it must be done by a physician, an independent-practice NP or another licensed professional acting within their scope, under rules that vary by state.

AmSpa's description of the common delegation model — NPs injecting under a collaborative agreement or full practice authority, and RNs injecting only with documented training, after a patient exam and treatment order from a physician or delegated PA/NP — is a trade association's general description, not every state's law.

Check your state's medical or nursing board rules before you book.

Because, as the 2024 survey's authors note, there are no official guidelines on hyaluronidase in aesthetic practice, two questions matter more than they might at a routine filler appointment.

One: which hyaluronidase product would be used, and how is it stored and prepared — the 2024 survey found practices vary.

Two: what is the plan if filler ever blocks a blood vessel?

Expert reviews recommend an in-office action protocol with treatment agents readily available, so this should be an easy question for a prepared clinic to answer.

Our research found no national list of who dissolves filler well — and the 2024 practitioner survey found storage, preparation and skin-testing practices vary — so the vetting questions above travel anywhere.

For credentials, red flags and the questions worth asking before any injectable appointment, work through the how to choose a med spa checklist.