Is it permissible to undergo cosmetic surgeries for the purpose of marriage, and is stipulating the presence of a beard for marriage considered an exaggeration?

If a cosmetic procedure is to remove a disfiguring defect, then there is no harm in it. However, if it is for increasing beauty, then it is not permissible. For a woman to stipulate to a suitor that he must have a beard is a good thing. But if a man of good religion and character proposes to her, even if he shaves his beard, she should marry him and try to advise him. However, for her to stipulate that he shaves his beard is not permissible.