Why Can't You Use Botox for the Saggy Wrinkled Skin Around the Elbows?

The only action of Botox is a temporary paralysis of the muscles it is injected into.  If those muscles are respondsible for creasing the skin and causing wrinkles and lines, then the wrinkles and lines won't be created and the skin can appear smoother.  Elbow wrinkles are caused by a lifetime of skin stretching and would not be inproved by Botox.

I am not aware of physicians who might have tried this off label, but the skin is wrinkled on the elbow as it is being stretched often, unlike the folding of the skin on the forehead and outer eyelids (crow's feet) from muscle contraction which makes the overlying skin contract. Once the muscle is quiet the skin smoothens, but on the elbow, the botox wouldn't elminate the arm movement and the skin would constantly stretch out. One never knows and sometimes in the field of medicine we discover uses of medication which were not expected.