PLEASE!! FOR THE LOVE OF GOD DONT USE THIS IF YOUR THINKING ABOUT CHANGING READ MY STORY FIRST!!! I usually use Old Spice High Endurance my wife accidently bought the wrong kind she ended up getting Old Spice Red Zone! I didnt want to waste it so I started using it automatically I noticed tingling NOT BURNING. thought nothing of it by the second day my arm pits were red and started to hurt so I stoped using it went on to use a mild solid deodorant which was my back up. I noticed two days later it got worse before i new it I had third degree chemical burns on both arm pits. I couldnt move my arms, everytime I did it was like pealing a band-aid. In the end it looked like some one had sliced my arm pits with a razor and burned them with a cigorett lighter, the pain was so bad i wouldnt wish it upon anyone. If you could see the pictures I took it would make you cringe. My doctor had to subscribe and anibotic steroide to help clear it up didnt see results for almost a week. Hope this was helpful to you!