Disclosed herein is a cosmetic product which contains a polymer having the repeating unit represented by the following formula (1) or (2):wherein R1 is independently alkyl group having 1 to 12 carbon atoms, X is a group represented by the following formula (i), a is an integer of 1 to 3, and b is an integer of 0 to 2,wherein R2 is independently alkyl group having 1 to 12 carbon atoms and c is an integer of 1 to 5,wherein R1, R2, and b are defined as above, and d is an integer of 2 to 5.
