SUGAR-FREE, GLUTEN-FREE AND VEGAN - Revvies 40mg caffeine strips have no added sugar and are less than one calories. So unlike sugary energy drinks or gels, there's no chance of a sugar crash after the initial boost. They are also gluten-free and vegan. CONVENIENT - Revvies small, light format makes them easy to carry or stash in any pocket, purse, gym bag, desk draw or car glovebox. Each strip is individually wrapped in a waterproof laminate to ensure no matter how harsh the conditions you can rely on Revvies to deliver when you need it. EASY ON THE STOMACH - Because Revvies can be taken without water, and the caffeine is released in the mouth, they are much lighter on the stomach than energy drinks, energy gels and caffeine tablets, plus there is no liquid to slosh around as you run, ride, play or workout. FAST – Revvies dissolve on the tongue in seconds allowing sublingual absorption, unlike caffeinated gums there's no need to chew for 5-20 minutes or sticky waste to dispose of when you're done. Users feel the benefits within 5 minutes as rather than 45-60 minutes for caffeinated drinks, energy gels, caffeine tablets or other formats that absorb through the gut. PRECISION PERFORMANCE BOOST - Revvies award-winning enery strips are used by all levels of athletes, including British Marathon Champions Charlotte Purdue (2019, 2021), Natasha Cockram (2020) and 50km World Champion, Aly Dixon. Unlike caffeinated lollies, drinks or gels Revvies allows you to get a faster, easier on the stomach boost, separately from your hydration and fuelling, allowing you to adjust each for effort, duration, course difficulty & weather conditions.