What do you advise if i'm looking for products similar to propel water or drinks with electrolytes that i can buy in drugstores or supermarket, what can you recommend?

Propel substitute: Propel contains water, Vitamins C, E B3, B5, B6 and B12. as well as calcium and potassium (K). All of the vitamins other than Vitamin E are water soluble. This means they cannot be stored by the body and any excess amounts of these are eliminated in the urine. A cheaper alternative is to ingest any citrus juice and take multivitamin pills that contain calcium. The juice will give you K. Good luck.