Pretty much yes. The exceptions I’d add are first that for training it is very, very worthwhile to take in the amount of water on the label directions. The most convenient way is to have that amount mixed into the MAG-10, but if good about making trips to the water fountain and drinking plenty, it can work fine to bring MAG-10 to the gym in a more concentrated form and get the added water separately.
For use during the day, water amount can be as desired, and slushies, smoothies etc are absolutely fine.
And second, saying what I complete expect you know but to be complete, blending the MAG-10 into a formula that’s otherwise a bad idea nutritionally would while not ruining the direct effects of the MAG-10, could work towards reversing the benefit. An example of bad usage would be routinely blending into orange juice and as a result drinking say 2 liters a day of the juice, which would be far too much sucrose and fructose for the day. I don’t think you meant anything like that, but just to be complete because there are many readers. Some types of smoothies I would avoid for that reason, rather than from the MAG-10 itself being harmed.