Hyaluronans have become the most popular agents used for soft tissue augmentation in the entire facial area. They are biodegradeable, nonpermanent and have a remarkable safety profile. Their natural biocompatibility means that no pretreatment skin test is necessary. The soft pliable enhancement of natural tissue turgor and contour makes them very acceptable in the lips and perioral and periocular regions. The more viscous agents are very helpful in the treatment of facial lipoatrophy particularly in the region of the cheeks and chin.