What makes our skin so elastic and firm? After all, if it weren't for these qualities, something like this☝🏻 would be happening to our "surface". Collagen fibers are responsible for skin elasticity. They are inside the connective tissue, creating the so-called spring frame of the mattress. For elasticity are responsible, surprisingly, elastic fibers. They are located in the thickness of the skin at different angles, as if "tightening" the dermis and preventing the separation of its components.