Helps conceal unpleasant pet smells in your home. Signature Arm & Hammer baking soda and essential oils help deodorize litter odors. Simply sprinkle the dissolvable crystals over for a pleasant scent boost. Crystals dissolve over time, leaving behind zero mess. Restoring scents are designed to help ease your fur-iend’s stress. The blend of baking soda and essential oils helps to neutralize odors and freshen the . The crystals are easy to use and dissolve quickly, leaving behind no residue. Plus, the calming scents of the crystals are designed to help reduce stress in kitties.