Rejeunesse Shape relies on the natural properties of Hyaluronic Acid. It is naturally occurring to the human body substance, which can also be synthetically created. To ensure the effect is very pronounced the injectable gel has a high HA concentration of 24mg/ml.

The main advantage of HA products is their biocompatibility. Fillers in particular, The enzymes of the patient's body will just slowly dissolve them over time. Thus this form of beauty augmentation is non-permanent, which however means it is also more flexible.

Since the dermal filler is biocompatible and biodegradeable, the list of side effects is short and only of mild discomforts, such as:

• Irritation
• Mild swelling
• Tenderness
• Heightened sensitivity
• Minor pain

All are limited to the point of injection and the immediate surrounding tissues. Normally the side effects pass within a couple of hours to a day or two.