It is the use of injectable Hyaluronic acid and other actives to either change the contours of the face or plump up a line or depression in the skin or tissue. Another form of filler is Fat Grafting where a small amount of fat is harvested from elsewhere in the body, cleaned, then injected into the target area. 

An aesthetic doctor, plastic surgeon or other medical professional assesses the area and injects a small quantity of filler into the target site.  This plumps the area up, and if done with the correct product, it can increase hydration or cell renewal.  

We lose fat and general volume in the face when we age. Replacing what we have lost can improve sagging and give the face a fresher, more youthful look. It can also support and relax overactive muscles. 

Correcting volume loss with fillers or fat grafting can therefore enhance how we look. Too much filler can be very unnatural and unattractive and give the face a bloated unhealthy look, but well-administered filler, with the help of an artistic eye and steady hand, can be undetectable. 

Filler can also be used to improve facial feature or profile defects. 


Expert technique, training and experience are needed to reduce the chance of serious complications, such as occlusions(blood vessel blockages). It is advisable to go to a practitioner who has the ability to prescribe as they have access to the prescription medication Hyaluronidase. Hyaluronidase is the enzyme that breaks down Hyaluronic Acid. 

Only Hyaluronic acid fillers can be fully dissolved and removed in case of unwanted results or complications. As a result, risks increase with the use of permanent fillers or fillers which purposefully cause inflammatory reactions. The possibility of serious complications is much more significant in certain areas of the face and the buttocks. 

It is possible to check your practitioner’s credentials and if they have a current medical registration. It is also wise to only receive treatment from someone with experience and specific training in the aesthetic procedure you are choosing to have. Proper training, experience, artistic skill and personal taste are all relevant when it comes to choosing the best practitioner for you.   Fillers are as much an art as a medical procedure. 

You can check a doctor’s status on the General Medical  Council, a nurse on the Nurse and Midwifery Council and a dentist on the General Dental Council. 

When it comes to Cosmetic surgery, it is wise to choose a registered plastic or oculoplastic surgeon. Relevant organisations include the British Association of Aesthetic Plastic Surgeons.