Facial soft-tissue augmentation with injectable autologous and allogeneic human tissue collagen matrix (autologen and dermalogen)

Facial soft-tissue augmentation has become increasingly popular as an optio n for those patients in whom age-related changes manifest as contour defect s or who desire volume enhancement for various areas of the face. A variety of agents and techniques are currently available that, when used appropria tely, can improve or correct facial rhytids and regional volume depletion. Failures of some agents are due to reduced biocompatibility, inadequate adm inistration technique, or failure to match the actual underlying defeat wit h the most appropriate solution. Dermal soft-tissue augmentation with human tissue collagen matrix (Autologen and Dermalogen) is physiologic, appears to be ultimately safe and effective, and has many qualities consistent with an ideal dermal filler. Several autologous, allogeneic (cadaver-derived), heterologous, and alloplastic agents will be discussed in this article with regard to rationale, patient selection, optimum administration technique, and persistence.