Is it possible that cosmetics ( creams, sunless tan...) reduce male fertility ? is it realist ? minimal possibility exist ?

Yes, but: There are chemicals in creams and cosmetics as well as in other environmental agents such as pesticides and herbicides that are known as hormone disrupters. They can cause various symptoms such as interfering with pregnancy, infertility, early puberty, weight gain. Also in some of our food. You can't eliminate them but minimize your exposure by eating organic and using simple products on skin.

I have : Not seen valid studies on this. So I don't feel this information is accurate.