An authenticable medical product (110) is disclosed, comprising a matrix material (118) with at least one authentication body (120) embedded into the matrix material (118), wherein the authentication body (120) is heterogeneous and comprises:- a core material (124) forming a core (122) of the authentication body (120), and- at least one cover layer (126) at least partially covering the core (122) of the authentication body (120), wherein a material (128) of the at least one cover layer (126) is different from the core material (124) and the matrix material (118).