Hyaluronic acid fillers
Hyaluronic acid is a substance the body produces itself and that holds water in the skin. As an injectable gel, it replaces volume lost with age and corrects contours: deep under-eye hollows, the fold between nose and mouth, lips, cheekbones and jawline. The body absorbs the gel gradually, and an enzyme (hyaluronidase) can dissolve it if needed.
Summary
- Procedure
- 30 to 60 minutes, with numbing cream and anesthetic in the gel itself
- Instrument
- Fine needle or blunt-tip cannula, depending on the area
- Swelling
- 2 to 7 days; on the lips it may last a little longer
- Duration
- 6 to 18 months, depending on the area and the product
- Follow-up
- About 30 days later
Who it is for
For adults with loss of volume or contour that bothers them. It is not recommended during pregnancy, breastfeeding, with active infection in the area or for people who have reacted to a filler before. People with autoimmune disease or on blood thinners should mention it at the consultation.
How it works
Dr. Karen von Kossel examines your face from the front and in profile, at rest and while you speak, and explains where volume makes a difference and where it does not. Numbing cream is applied and the gel is injected in small amounts. The plan may be split into more than one session.
Recovery and care
Avoid intense exercise, sauna and alcohol for 24 hours and do not massage the area unless instructed. Contact the team right away if you have severe pain, white or purple skin in the area, or changes in vision.
Frequently asked questions
Can fillers be reversed?
Yes. Hyaluronic acid is dissolved with an enzyme called hyaluronidase, injected in the office.
Are fillers and Botox the same thing?
They are different treatments. Botulinum toxin relaxes the muscle and softens movement lines. Fillers replace volume and correct contour. The two are often combined.
Last updated November 10, 2026 · Medical director (responsável técnica): Dr. Karen von Kossel, CRM-SP 107714 · RQE 58534