Summary: We study how the real forms \(\mathfrak g\) of contragredient Lie superalgebras are determined by their even parts. We prove that if the even parts of \(\mathfrak g\) and \(\mathfrak g'\) are inner isomorphic, then \(\mathfrak g\) and \(\mathfrak g'\) are inner isomorphic. Also, if the even parts of \(\mathfrak g\) and \(\mathfrak g'\) are isomorphic, then \(\mathfrak g\) and \(\mathfrak g'\) are isomorphic.