Two German dermatologists set out to answer this question. They employed a most unique weapon in their search. They utilized a laser-like source to detect changes in collagen and elastin. Thus, they were able to assess changes without the need of a skin biopsy, the usual means to determine tissue changes. I anticipate this method will grow in use, if not become standard in such skin experimentation.
So what did they find? Interestingly, men's skin breaks down collagen at a slower pace than women's. This may explain the resason men's skin does not seem particularly aged compared to women despite the mmuch more prevalent use of anti-aging products by the fairer sex.
-Dr. Arnold Oppenheim