I know that Acetyle l carnitine 500 mg is supposed to be very good for anti aging. I had a friend who had tried it out but she got a skin rash. Her skin was never sensitive but this happened. She never had pimples after school and now she is a working woman. It has been 20 years since she has been out of school. What other anti aging creams or supplements would you recommend. Have any of you faced any such a problem.