No, it just smells really, really good. Some scents alone have the ability to affect women. For example, check this thread in the Parfum forum: Looking for mystery cologne
GIT is one of my favorites and I wear it all the time with pheros. In fact, it-- or any good scent-- can help diffuse pheros or cause people to get closer to you to find the source of the smell, thus bringing them into your phero cloud.
I just got a bottle of it a few days ago. No, Creed doesn’t bother with pheromones, it’s not typical with their MO. Creed tends to emphasize mostly natural components and then there’s the fact that it just smells really damn good. However, as Data pointed out, any cologne/perfume that smells good and has good diffusion will help draw people closer to you and the pheros that you’re wearing. If you like it and it works well with your chemistry, then keep using it. It won’t affect AD’s products, but also keep in mind that Creed is also known for inconsistent batches and staying power, so whatever you’re wearing from AD, make sure it’s something that goes well with GIT.
I don’t know if any major perfume house uses pheromones in their products, but I’d expect them to really make sure that the customers knew about it. If I didn’t already know that pheromones work and where I can get them, I’d be tempted to buy some after shave or cologne of whatever known brand if they’d claim to have this advantage.