Most colognes, contain harmful chemicals that mess with you estrogen levels, increase cancer risks, etc. Your skin is basically a whole bunch of little mouths sucking up everything you put on it. The broader issue pulls in all sorts of products such as soaps and shampoos as well. The best way to avoid this is by choosing options that avoid these chemicals or simply making your own. I might not get the long lasting fragrance benefits that some provide, but im not willing to rub myself with petrolyum jelly for superficial effectiveness gains. Currently testing how long the fragrances will last with my mixture.