Acli-Mate truly helped our daughter minimize her severe altitude sickness. We are from Florida so going from sea level to Crested Butte at roughly 9500 feet, is always tough. We keep an oxygen condenser unit in our Colorado home so our daughter doesn’t feel so bad. After starting the Acli-Mate three days prior to our trip and the first few days of being at a high altitude, she was fine. No oxygen, no getting sick. Everything was great. I highly recommend Acli-Mate for the low-landers heading “up”!!!