Really does work. I trade chaser and it worked very well and chaser plus works the same, if not better. I use these pills on nights of heavy drinking and they really do help me. I can usually get pretty bad hangovers, but these help out a TON! Amazing product. Try the 6 or 10 pack of you dont believe it. Take 2 right when you start drinking, then 2 more for every 4-6 beers or 2-3 hours I believe. I usually take 6 threw out the night and get about 5 hours of sleep (or more if I can) and I feel great!