Individual metabolism
The rate at which the body breaks down hyaluronic acid differs between people. Two men treated with the same product and volume can see different durations.
Hyaluronic acid filler is temporary. This guide explains what published follow-up shows, why the gel lasts longer in some men than others, and what happens when the result fades.
In brief
Short answer
Hyaluronic acid penile filler is gradually broken down by the body, so the result is temporary. Published studies report follow-up of roughly 12–18 months, and one large audit reported a mean longevity of 12 months with a range of 9–24 months. How long it lasts in any one man depends on his metabolism, the product, the volume and how much mechanical stress the area receives. Individual results vary, and no one can promise a permanent result.
Results
Hyaluronic acid occurs naturally in the body, and the body has its own enzymes for breaking it down. Unmodified hyaluronic acid disappears within days. Filler gels are cross-linked so that they resist this breakdown for months, but they are still biodegradable: the gel is slowly resorbed and the volume it provides reduces over time.
This is a deliberate trade-off. The same property that makes the result temporary is what allows the gel to be dissolved with hyaluronidase if there is a problem — something that permanent materials such as PMMA do not allow. The hyaluronic acid penile filler guide explains the gel and technique in more detail.
Resorption is usually gradual rather than sudden. Most men notice a slow softening and reduction in fullness rather than a single point at which the result disappears.
Results
| Source | Type of data | Duration reported |
|---|---|---|
| Raheem et al., J Sex Med 2025 (abstract) | Retrospective audit, 324 men | Mean longevity 12 months (range 9–24 months) |
| Yang et al., J Clin Med 2020 | Randomised trial, HA vs polylactic acid, 67 men | Girth still above baseline 18 months after a single injection |
| Kwak et al., 2011 | HA case series | 18-month follow-up (41 of 50 men completed) |
| Zhang et al., Asian J Androl 2022 | Case series, 38 men | Girth gain of 2.44 cm at the end of 12 months’ follow-up |
| Teoxane, Teosyal PureSense Ultra Deep | Manufacturer information — facial use | Estimated lifetime 15–18 months (Saudi page) or 12–18 months (Australian page) |
Two points are worth reading carefully. First, a study that followed men for 18 months tells you that some effect was still measurable at 18 months — it does not tell you what happened afterwards, because follow-up stopped. Second, the manufacturer’s lifetime estimate describes the face, where the tissue, movement and injection plane are different. It is useful context but not a penile figure. The Teosyal Ultra Deep guide covers the product’s approved indications.
Results
The rate at which the body breaks down hyaluronic acid differs between people. Two men treated with the same product and volume can see different durations.
Fillers differ in concentration and degree of cross-linking, which affects how firmly the gel holds together and how quickly it is resorbed. Firmer, deep-volume gels are generally chosen for this use.
Volume is chosen for the result, not to extend duration. How 10, 15 and 20 ml are chosen is covered in the volume comparison guide.
The penis is a mobile area subject to friction and changes in size. Published data do not rank specific activities or lifestyle factors, so follow the clinic’s written aftercare instructions.
No study has established a reliable way to predict how long filler will last in a particular man. The physician can explain what is likely in your case at the assessment, but that is an estimate rather than a guarantee. For how volume is decided, see 10 ml vs 15 ml vs 20 ml.
Results
The honest answer is that the published evidence becomes thin at this point. The longest penile follow-up in the sources cited here is around 18 months, and the highest individual longevity reported in the 324-patient audit was 24 months. Beyond two years there is not enough published penile data to give reliable figures.
What can be said is that hyaluronic acid is biodegradable, so the expectation is that the added volume continues to reduce and the penis returns towards its pre-treatment size. Some men may notice a small residual fullness for longer than others; a published report of four cases describes residual volumes after penile hyaluronic acid filler that were corrected with hyaluronidase. You should not plan on any part of the result being permanent.
If you notice firmness, lumps or unevenness long after treatment, contact the clinic or a doctor rather than assuming it is normal. The risks and safety page covers late problems and how they are managed.
Results
Because the result fades, men who want to maintain it usually consider a repeat treatment or top-up. Whether a top-up is appropriate, when, and with how much gel, is decided by the physician after examining you, because the amount of filler remaining differs from man to man.
Package prices and what each includes are set out on the penile filler cost page. If you are planning travel for a top-up, the patient coordination team can advise on timing.
Results
It helps to think of hyaluronic acid filler as a result that lasts for a period measured in months, most often around a year to eighteen months in published reports, with wide variation either side. Men who want a permanent change should understand that hyaluronic acid will not provide one, and that permanent injectable materials carry their own, harder-to-reverse risks.
The size of the result also matters. Published mean girth gains and the clinic’s own reported figures are compared on the penile filler results page. The clinic’s figures come from its own caseload, are not guaranteed, and sit above the published means.
Questions
No. Hyaluronic acid is gradually broken down by the body. Published follow-up commonly covers around 12–18 months, with wide individual variation.
As the gel is resorbed, the added volume reduces and the penis returns towards its pre-treatment size. The timing varies between men.
Published data do not show that. Volume is chosen for the intended result and your anatomy, and is confirmed by the physician at the in-person assessment.
Often, yes, if the physician considers it appropriate after examining you. Top-ups are priced case by case unless included in your package according to clinic policy.
More answers are collected on the penile filler FAQ page.
Next step
General information cannot tell you whether this treatment suits you. The patient coordination team can answer practical questions, and suitability and volume are decided by the physician at an in-person assessment.
Sources
Published sources cited on this page. Conference abstracts are identified as such; they have not been through full peer review as journal articles.