When you enter Pasteur Pharmacy on East 34th Street (they have a sister store on the UES), be prepared to suck in your gut and do a bit of a hopscotch: This store carries double to triple the inventory its small space can hold . . . and yet, somehow, they manage to stack everything in?all the way up to the ceiling. Aside from the super-fast pharmacy (don?t mess with the tough gals working back there), you?ll find every professional styling product under the sun, commercial body lotions to medicated ones, a wall of nutritional supplements, natural and organic skin-care items, European-imported sun creams, and even several luxury brands like L?Occitane and Dr. Perricone. Some of the more random products we can recall: soaps with salicylic acid, tar, and yogurt; Swiss-made eyelash-enhancing serums; Frownies (stickers to put on your wrinkles at night); Japanese-imported mascaras; and even Jessica Simpson hair extensions. You?re almost guaranteed to find any product here, and if by some strange chance you can?t, they?ll usually be able to order it and have it shipped to the store within a few hours.