Good product but also take mosquito nets.
I used enough DEET to kill a small village while in the Amazon, but still ended up with an incredible number of bites, including through the legs of my pants, which were soaked in DEET. I was suddenly very happy to have had the barrage of vaccinations that we had been subjected to prior to leaving for the jungle! The Ben's small bottle is a perfect size to carry in a pocket and is enough for one person for a couple of days. The larger bottle is handy to refill the small bottle from. I would recommend using both Ben's with DEET and clothing/nets that are sufficient to keep the mosquitos out if you will be ina location where mosquitos are a serious problem.