The dermis consists of collagen and elastin fibers as well as hyaluronic acid that help with the support, elasticity, rehydration and resistivity of the skin.
With advancing age there is a decrease in the number of fibroblasts (cell that produce structural proteins ) with a consequent reduction of the composition and quality of the macromolecules of collagen and elastin.
As a result the skin’s structure has fewer and more loose collagen and elastin fibers and manifests laxity.
Especially after rapid weight loss laxity is more visible and creates highly aesthetic problems.