IS/A can make some women feel very competitive with you. I have had similar experiences where women, who served as the alpha females of the group, throw me some serious shade. You can read my experience HERE (Can Pheros Confuse a Guy's Feelings for You?). On the other hand, the women I work with respond very well to IS/A. Go figure. As you gain more experience with this product, you will know in which environments and company it works best. 