<prompt> Old age pigment is -HemosiderinMelaninLipofuscinBilirubin  <response>: Ans. is c i.e., Lipofuscin It is an insoluble pigment, also known as lipochrome and wear or tear or aging pigment. Lipofuscin is not injurious to the cell or its functions.Refer to APPENDIX-90 in volume-3 of this book 