The Men’s and Women’s Skincare Systems are essentially the same. It contains the same ingredients, vitamins, and nutrients. The only difference is the Women's System has 1 additional step - it has 2 moisturizers (while the men’s program only has 1 moisturizer) because women have a lipid layer* and men do not. This means that it is harder for the nutrients in the moisturizers to absorb into the skin (and also why is it easier for women to have dry skin). 

* The lipid layer is just under the moisture barrier which is just under the skin's protective coating, the acid mantle .