I had heard so many good things about MAC Pro Longwear Lipcolor that I could not way to try it out. MAC is a brand that I often find myself gravitating toward so I figured it had to be great! **Product Details** MAC Pro Longwear Lipcolor is a double ended tube. One end has a color on it with an applicator wand and the other end has a clear gloss in it. You unscrew whichever side you want to use and then screw it back on to use the other side or put it away. **Product Performance** I tested out all of the colors at the MAC store by swatching on my hand and found one that I liked and purchased it. I could not wait to try it on my lips, so I opened the box, and quickly applied it. When I left the store, I had walked about 100 feet when my lips began to do the oddest thing- they started to hurt. I felt as if the skin on my lips was shrinking apart and so quickly that I started to panic. I tried to wipe off the lipstick, but it would not come off, and my lip skin was shrinking so quickly that it was starting to crack. I was very frantic and nothing I did seemed to be able to stop it from happening. I ran back to the MAC store and begged for help to remove this stuff from my lips. They put all different makeup removers on my lips which made them burn, so I almost went into a full blown panic. They could not believe how it reacted on my lips! Finally they found one makeup remover that worked, but my lips were wrecked for two days afterward **The Bottom Line** I have problems with some lip products which make my lips peel or dry out, but I rarely have had a problem as severe as I did with this Pro Longwear Lipcolor. Needless to say, I took mine back and refused to ever try it again.