I use this electrolyte brand. It's located in the US and it's called LMNT and they're really great. You can get them on Amazon and they have a thousand milligrams of sodium. That's the only thing. So sometimes I'll take like a half a packet if I'm really not feeling the whole thing, but they help me so much with my hydration. Like I can just tell my mental clarity, my focus, everything is so much better when I take at least like a half a packet a day.