The service and deliver of the lotion was flawless and really fast. I needed it for a swimming challenge event at short notice due to lions mane jellyfish being sighted in abundance in the area we were swimming. The lotion was fine, went on well and wasn’t too obvious. I just looked shiny. I was in the water 1 hour 40 minutes, and was stung fairly extensively on my legs and neck on the last 10 minutes of the swim. So as far as I’m aware the 80 minute working time was accurate as I was fine up until that point. I wouldn’t want to test the theory to vigorously however. Overall I would absolutely use this site again for any needs I have, I would need to try the lotion again to see if it works within the timescales. The bottle is fairly small and I only got a couple of applications.