hello lily2014 There are many mesh products surgically used to support breasts; Seri®, Belladerm , Flexiderm™, GalaFLEX, Alloderm®, TIGR™,TiLOOP™, Strattice™, and ADM (acellular dermal matrix) to mention a few. These all have different properties and are manufactured by different companies. For example: Alloderm® is derived from cadaver skin which is processed to provide a matrix that will be replaced by your own collagen. Seri® is a silk derivative. GalaFLEX is a dissolving mesh created from glucose, or sugar and dissolves much like absorbable sutures. All meshes have their own unique properties but can be used to help support a sagging breast during a lift.