This product rocks! I am using this for 3 months now, 80% left in the bottle. i think it will last over a year. only 6 drops for every 5 days. for the price of 2 pairs of Jean exchange for no more armpit odor, in my oopinion, it worths everry dollar. laser surgery cost me $600.00 and the result is ineffective and painfull. http://www.nomoreodor.com cost about $30.00 for a piece of usless information and I end up with 2 big bottles of ISOPROPYL ALCOHOL. don't wast your money and time on that. For the same bottle, http://www.miracleproducts.ca cost 250 canadian. I hope this help. Keep in touch everybody. .