Flying takes more out of you than you think. Dehydration. Fatigue. Immune suppression. Brain fog.Most people accept it as part of travel. Cloud9 was built to change that. Created by a flight attendant who lives in the air, Cloud9 is a science-backed supplement sachet formulated specifically for what flying actually does to your body — so you land feeling like yourself, not like you've just spent eight hours in a pressurised tin can. One sachet. Five ways it works: Restores energyVitamin B12 and Vitamin C contribute to normal energy-yielding metabolism and help reduce tiredness and fatigue. Sharpens focusZinc contributes to normal cognitive function, helping you feel clear-headed after a long-haul flight. Deep hydrationPotassium and Magnesium contribute to the maintenance of normal electrolyte balance, lost through hours in dry cabin air. Immune supportZinc contributes to the normal function of the immune system — right when flying puts it under extra strain. Cellular protectionVitamin C, E and Zinc contribute to the protection of cells from oxidative stress. How to use Take one sachet after landing. What's inside Available in multiple pack sizes — pick yours above 2 capsules per serving The details Made in the UK 100% vegan Third-party tested Cloud9 Sachet Pack — smaller packs ship letterbox, larger packs ship tracked parcel.