To create a wrinkle deformer, you use the Wrinkle Tool. The characteristics of the wrinkle deformer you create depend on the Wrinkle Tool’s tool settings.
You should avoid changing the number of a deformable object’s points (for example, CVs, vertices, or lattice points) after you create a deformer. Changing the number of points can lead to unexpected deformation effects. Try to be sure you are happy with the deformable object’s topology before you begin using deformers. You might want to save a copy of the object in case you want to do further modeling later.