Other Information: Avoid storing product in direct sunlight. Protect product from excessive moisture. Store with lid closed tightly. Misc: 4% lidocaine. Maximum strength (Available without a prescription) +10% benzyl alcohol. 2 powerful anesthetics. Fast acting. Numbing relief. Unscented. Desensitize aggravated nerves. For temporary relief of pain. Back. Neck. Shoulders. Knees & elbows. New! Questions or comments? Toll free 1-800-826-8861. www.salonpas.us. For back. For neck. For shoulder. For joint. Child-resistant packaging. Made in USA.