Collagen biostimulator: what it is and how it works

Collagen biostimulator is the name given to injectable substances whose main effect is not to occupy space, but to provoke a tissue response that leads to the production of new collagen. The result is a gradual improvement in firmness, skin thickness and support, which usually appears over weeks to months.

The substances most often cited in this group are poly-L-lactic acid, polycaprolactone and calcium hydroxylapatite. Each has its own dilution, indication, number of sessions and risk profile, defined by the qualified professional after assessment.

What is the difference from hyaluronic acid?

Hyaluronic acid gives immediate volume at the injected point and can be broken down with hyaluronidase. The biostimulator acts in a more diffuse and gradual way, and there is no agent that dissolves it in the same way. For this reason, indication, dilution and technique deserve extra care, and nodules are one of the most discussed complications with these products.

In practice, the two do not compete: it is common for the plan to use a biostimulator for skin quality and support in broad areas, such as the midface and the jawline, and HA for points of projection and contour.

In Harmy

The Harmy projection is designed to show the change in volume and contour in the regions marked. Because the biostimulator's effect is gradual and diffuse, it has no point of its own in the marking, and any conversation about it with the patient should make clear that the improvement appears little by little.

Also called: biostimulator, collagen stimulator, biostimulation.