Polycaprolactone (PCL): what this biostimulator is
Polycaprolactone (PCL) is a synthetic, biocompatible and absorbable polymer, used for years in sutures and medical devices. As an aesthetic injectable, it is formulated as microspheres suspended in a carrier gel. It belongs to the group of collagen biostimulators, alongside polylactic acid and calcium hydroxylapatite.
How does polycaprolactone work?
The effect has two stages. Right after the injection, the carrier gel provides immediate volume. That gel is absorbed over the following weeks, while the microspheres stimulate collagen formation around them. The particles break down slowly, and the breakdown time varies with the formulation, which affects the duration described by the manufacturer.
Because it combines initial volumization with biostimulation, PCL is often mentioned for restoring volume and improving contour in areas such as the cheekbone and the jawline. The indication, plan and amount are the decision of the qualified professional, after assessment.
What precautions does it require?
- There is no enzymatic reversal. Unlike hyaluronic acid, PCL is not broken down by hyaluronidase, which reduces the options in case of excess or irregularity.
- Nodules can appear, especially with poor distribution or in superficial planes.
- Vascular occlusion is possible, as with any injectable, and requires anatomical knowledge and a care protocol.
- Areas of thin, highly mobile skin are usually avoided.
Because it is long-lasting, PCL calls for extra attention to expectations, photo documentation and informed consent.
Also called: PCL, injectable polycaprolactone.