juviderm Injectable Hyaluronic Acid Dermal Filler Lips Dermal Filler Collection  Cross Linked Dermal Filler

Preparing 
Before a  treatment, speak with a medical professional about your cosmetic goals and expectations. This procedures are minimally invasive so they're frequently done on the same day as the consultation. The procedure is minimally invasive and doesn't need much preparation.

Simple instructions to follow before your consultation and treatment generally involve avoiding medication like aspirin, ibuprofen, and St. John's wort. And you'll want to avoid alcohol in the weeks leading up to treatment. Smoking is also discouraged before treatment. Avoiding these things can help prevent bruising. Also let your doctor know of any allergies or sensitivities.

How does it work?
It works by adding volume to the facial tissue through its active ingredient, hyaluronic acid. Hyaluronic acid is a natural substance found in the human body. It stimulates the production of the connective tissue that plumps the skin (collagen). As you get older, the production of hyaluronic acid and collagen decreases. This increases the appearance of sagging and wrinkling of the facial skin.

During the procedure, your doctor, physician assistant, or nurse typically uses a pen to mark the areas to be treated. Your doctor will then inject it into the target area. They will also lightly massage the area to ensure an even distribution and reduce the chance of swelling. The entire procedure usually takes between 15 and 60 minutes, depending on the area treated.

This injections contain a small amount of pain-reducing lidocaine. This will help minimize any pain or discomfort you feel during treatment and make it go away quickly.
 

Risks and side effects
You can expect some swelling and bruising. Other common side effects include:

redness
tenderness
lumps or bumps
minor pain
itching
All of these side effects usually subside within two to four weeks.