Injectable Fillers – Type C

A clinician in pink gloves holds a syringe near a woman's cheek during treatment with an injectable facial filler.
A clinician in pink gloves holds a syringe near a patient's cheek during an injectable Poly-L-lactic acid filler procedure.

What is it?

This filler is an injectable skin filler that can ‘plump up’ the skin to appear smoother and fuller. The product is a synthetic substance made up of chains of lactic acid. It is manufactured as a fine powder that is reconstituted in sterile water for injections. It is naturally degraded in the skin to a natural by-product that is safely cleared by the body. The product has been in use in medicine for 20 years and is used to manufacture certain dissolvable stitches.

How does it work?

When injected into the skin, it gradually stimulates natural deposition of collagen to thicken and smoothen the skin. As it gets absorbed over time, the volume enhancing effects persist due to an increase in skin collagen triggered by the product.

What does the procedure involve?

Multiple fine injections into the cheeks and areas of the face that appear hollow or sunken. The procedure can be done without anaesthetic, but a cream anaesthetic is applied 15–30 mins beforehand to make the procedure more comfortable. Ice can be used to effectively numb the skin prior to the injections. The treated area is also massaged by the doctor or nurse after the injections.

Clinician guides a fine syringe toward the lower lip during an injectable filler procedure for facial volume enhancement.
Clinician gives a fine facial filler injection near the cheek while supporting the patient's chin with gloved hands.

What conditions can benefit from Poly-L-lactic acid fillers?

  • Fine wrinkling
  • Loss of skin volume
  • Increased skin folds & coarse wrinkles
  • Hollow or sunken cheeks through weight loss, illness or disease
  • HIV & other disease related to wasting of the face
  • Thin skin on back of hands

Before and After

Before After A close-up of a man's lower face shows hollow cheeks, fine lines and a small area of facial hair beneath his lower lip.A close view of a man's lower face shows hollow cheeks and folds beside the mouth, consistent with facial volume loss.