It is imperative to drink plenty of water every day, because our bodies need water to function optimally and remove toxins. Signs you are not drinking enough water include headache, fatigue, dry skin and dry mouth, constipation, etc. If you have difficulty keeping up with your water intake, or cannot keep fluid in such as vomiting or diarrhea, then Hydration IV restores the fluid loss. Hydration IV is straight fluid, but if you want something extra, we also have the Replenish bag. It contains vitamin C, B vitamins, vitamin B12, and magnesium in a hydrating bag.