Perspirex Men's Antiperspirant Deodorant provides long-lasting, reliable protection against sweat and odor buildup for up to 3 to 5 days, so you can feel completely comfortable in your own skin again. It has been uniquely formulated to control odor and is clinically proven to provide extra effective protection against perspiration for 3 to 5 days. It combines the hardworking active ingredient Aluminum Chloride with the patented Perspirex skincare system to help minimize any potential skin irritation and improve skin comfort. How to use: Your skin must be intact, free of chafing, burns, or irritation. You must not have waxed, shaved, or had laser hair removal 48 hours before applying Perspirex. You also must not have used a deodorant or antiperspirant containing alcohol or aluminum chloride within the previous 24 hours. The skin must be clean and completely dry. Apply at night, just before going to sleep. Apply two upward strokes and two downward strokes, no more. Let it dry for a few seconds. The next morning, wash your armpit with soap and water to remove any remaining product. Reapply after 3-5 days (the first time you use Perspirex, you should apply it for 5 nights in a row, after these 5 nights, apply it every 3-5 nights).