For years, I use already deodorants without aluminum salts and so far there was only one that really reliably avoided the smell of sweat with me: The Vichy Deodorant 24H2, dry armpits. The exorbitant price of approximately 7, - I swallowed for the sake of my surroundings, I wanted to spare before heavy welding fumes. Alternatives from sebamed or from the renowned Drogeri (warp) en the city failed reliable usually after a few hours and the frequency of Stoßlüftens took my colleagues with the progress of the day markedly.
Many a "wet fox" might be the matter, but to me, the embarrassed and so I was looking for alternatives. Although the protective effect of the 8x4 keeps pretty long, but can not compete with a deodorant with aluminum salts. From my personal experience I would specify a maximum duration of about 5 to 7 hours depending on temperature and weather conditions, then I have with soap and water the bacteria first be Lord, before I can refuel again with the 8x4 for the rest of the day ,