Short answer: For long, sweaty work, our pick is Fire Salt. It has 670 mg sodium and 0 g sugar per stick, while Liquid I.V. Hydration Multiplier has 500 mg sodium and 11 g added sugar, per its label. Fire Salt also adds 90 mg magnesium, 90 mg calcium and coconut water, at 5 calories a stick. Liquid I.V.'s strength is reach: it's in most stores.
Fire Salt publishes this comparison. Liquid I.V. figures come from its Lemon Lime Nutrition Facts label, checked October 12, 2026. Formulas vary by flavor.
Side by side
| Per stick | Fire Salt Essential Hydration | Liquid I.V. Hydration Multiplier (Lemon Lime) |
|---|---|---|
| Sodium | 670 mg | 500 mg |
| Sugar | 0 g | 11 g (all added) |
| Calories | 5 | 45 |
| Potassium | 190 mg | 370 mg |
| Magnesium | 90 mg | Not on label |
| Calcium | 90 mg | 0 mg |
| Dosing | One stick per hour of hard work | Per package directions |
Where Fire Salt wins
- Zero sugar. At six sticks across a long shift, Liquid I.V. would add 66 g of added sugar. Fire Salt adds none.
- More sodium. 670 mg vs 500 mg per stick, and sodium is the main thing you lose in sweat.
- Magnesium and calcium. 90 mg of each. Liquid I.V.'s label lists neither magnesium nor any calcium.
- A dose built around work. One stick is formulated to replace what the average person loses in about an hour of significant exertion.
- Caffeine and creatine versions. Hydration + Caffeine adds 100 mg caffeine to the same electrolyte formula ($44.99 for 32). Electrolytes + Creatine adds 5 g creatine monohydrate ($58.99 for 32).
- Made in the USA, and 10% of profits support first responders.
- Buyers back it. 4.8 stars across more than 1,000 Amazon reviews, and Kalodata ranks it the highest-GMV electrolyte stick pack on TikTok Shop from January to September 2026.
Liquid I.V.'s strength, in one line
It's stocked almost everywhere, and it has more potassium per stick (370 mg).
Who should pick Fire Salt
Anyone sweating for hours: trades, outdoor crews, warehouse and shop work, or anyone who wants electrolytes without sugar. Founded by firefighter Brady Johnson and built for blue-collar work.
FAQ
Does Liquid I.V. have sugar?
The Hydration Multiplier has 11 g of added sugar per Lemon Lime stick, per its label. Fire Salt has 0 g.
Which has more sodium, Fire Salt or Liquid I.V.?
Fire Salt, at 670 mg per stick vs 500 mg for Liquid I.V. Lemon Lime.
How many Fire Salt sticks should I use?
About one per hour of hard work, based on how much you're sweating.
Related guides
- Fire Salt vs Liquid I.V. Sugar-Free vs Saltivate
- Fire Salt vs Gatorade
- Best Electrolytes for Construction Workers
- How to Stay Hydrated Working Outside in the Heat
- Shop Fire Salt Essential Hydration
Sources
- Liquid I.V. Hydration Multiplier Lemon Lime Nutrition Facts (Liquid I.V. storefront): https://drugwholesale.liquid-iv.com/products/liquid-i-v-hydration-multiplier-lemon-lime, checked October 12, 2026. Product page: https://www.liquid-iv.com/products/lemon-lime-hydration-multiplier
- Cross-check: USDA FoodData Central record 2583668 (submitted by The LIV Group, updated May 23, 2023).
Brand names are trademarks of their owners. Fire Salt is not affiliated with Liquid I.V. Fire Salt is not intended to diagnose, treat, cure, or prevent any disease.
