Wellness often calls for an inside-out approach—ample sleep and a nutrient-dense diet, for example—so it’s little surprise that Liquid I.V. electrolyte mixes have become a staple among those taking a more thoughtful approach to hydration.

Electrolytes, for the uninitiated, can improve hydration and lend skin a radiant glow (often lost as a sign of dehydration). And while drinking water with salt in the morning can offer a similar benefit, what sets Liquid I.V. Hydration Multiplier electrolyte drink mixes apart—and what has earned it a fan base in the hundreds of thousands on Amazon—is the brand’s lineup of appealing flavors, clean ingredients, and ability to enhance digestion and boost energy. But do you actually need electrolytes? And how often should you be taking them? Here’s what to know.