Never spray perfume on your neck. Here's what's actually happening when you do. The skin on your neck is thinner than almost anywhere else on your body, which means fragrance chemicals absorb faster and deeper there. A UC Berkeley study analyzed 25 popular perfumes and found 23 of them contained phthalates not listed on the label. Phthalates are endocrine disruptors that interfere with your hormone system by mimicking or blocking your natural hormones. They hide behind one word on every ingredie