Procedure
Polylactic acid filler
A biostimulatory filler intended to act gradually.
01 What it is
Injection of poly-L-lactic acid, a biostimulatory material intended to stimulate the body’s own collagen over time rather than adding fixed volume.
02 What it aims to change
Girth, developing gradually over weeks. It does not lengthen the penis or change erectile function.
03 How it is performed
Reconstituted material is injected into the layer beneath the skin, sometimes across several sessions. The final effect depends on individual tissue response.
04 What published studies report
Evidence in this region is limited and comes mainly from smaller studies and case series. Some report gradual girth increase; robust comparative data are lacking.
05 What remains uncertain
The magnitude and durability of the collagen response vary between individuals, and long-term data are insufficient.
06 Common short-term effects
- Swelling
- Bruising
- Tenderness
07 Potential complications
- Nodules (a recognised concern with biostimulators)
- Irregular contour
- Asymmetry
- Infection
08 Reversibility and revision
PLA is not dissolvable like HA. Nodules may be managed conservatively; surgical removal is occasionally required.
09 Recovery
Usually short, but results appear gradually. Outcomes vary.
10 Questions to ask
- How many sessions are likely?
- What is the nodule risk and how is it managed?
- What if the response is uneven?
11 Evidence references
- Penile girth enhancement procedures for aesthetic purposes
Girth techniques can increase circumference short term, but durability and complication data (nodules, asymmetry, reabsorption) limit strong conclusions.
doi.org/10.1038/s41443-021-00459-y - Non-invasive and surgical penile enhancement interventions for aesthetic or therapeutic purposes: a systematic review
Multiple methods can produce measurable change, but the overall evidence base is limited and standardisation is poor.
doi.org/10.1111/bju.15145