Tighten Up Shrink Creme claims to heighten sensitivity for him and her by bringing about a tightening sensation in the vagina. Curiously, the active ingredient in Tighten Up creme is benzocaine, the same ingredient responsible for the numbing effects of Rock Hard creme, a product for men which is topically applied to prolong an erection. Benzocaine is a topical anesthetic, medically used to treat various dermatitis, and it's prescribed by doctors to alleviate vaginal itching. Next on the ingredients list of Tighten Up is triclosan, an anti-microbial agent used in antibacterial soaps. Pussy has enough to do, checking and balancing her little ecosystem, without Product gumming up the works.