Plain ol’ water is out. Hydration supplements are in. But do these top 8 brands really work?

Deborah Vankin | (TNS) Los Angeles Times

You see them crowding checkout counters at grocery stores — a rainbow of bubble-gum pink, lime green and blueberry packets, slender and upright, like a multicolored chorus line of dancers tempting an impulse purchase. At the gym, they’re dissolved into enormous jugs of cherry-tinted water.

They’re especially prevalent on TikTok. Just search #watertok for a flood of #watergirlies, clutching Stanley tumblers at their #waterstations, which are...