SLF Electrolyte Comparison · 2026
Ultima Replenisher Electrolyte Mix
Everyday Hydration · Travel · Keto & Low-Carb
Check Price at WalmartRead full review ↗
Zarbee's Kids Hydration
Hot-Weather Endurance · Everyday Hydration · Recovery
Check Price at WalmartRead full review ↗Ultima Replenisher Electrolyte Mix
Best overall data score for this matchup based on formula, value, rating, and intended use.
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At a Glance
A quick side-by-side look at nutrition, value, and overall performance.
| Feature | Ultima Replenisher Electrolyte Mix | Zarbee's Kids Hydration | 🏆 Edge |
|---|---|---|---|
| Sodium | 55 mg | 160 mg | Zarbee's Kids Hydration |
| Potassium | 250 mg | 90 mg | Ultima Replenisher Electrolyte Mix |
| Magnesium | 100 mg | Not listed | Ultima Replenisher Electrolyte Mix |
| Sugar | 0.0 g | 2.0 g | Zarbee's Kids Hydration |
| Calories | 0 | 10 | Zarbee's Kids Hydration |
| Sweetener | Organic Stevia Leaf Extract | Dextrose, Monk Fruit Juice Concentrate, and Reb M | Preference |
| Cost per serving | $0.56 | $1.99 | Ultima Replenisher Electrolyte Mix |
| SLF rating | ★★★★★4.7/5 | ★★★★☆4.4/5 | Ultima Replenisher Electrolyte Mix |
Mainstays Kids Stainless Steel Tumbler 20 oz
Keep water and electrolyte drinks cold for hours with the Mainstays Kids 20 oz Stainless Steel Tumbler. Double-wall vacuum insulation, a reusable straw, and a kid-friendly design make it perfect for school, sports, travel, and everyday hydration. Available at Walmart.
Functional Ingredients
Additional active or performance-oriented ingredients recorded in the SLF database.
Ultima Replenisher Electrolyte Mix
- MagnesiumVitamin CZincElectrolyte BlendTrace Minerals
Ultima Replenisher is a strong zero-sugar, lighter-sodium choice for everyday hydration, low-sodium diets, keto, general wellness, but it is less compelling for heavy endurance…
Zarbee's Kids Hydration
- Gum Acacia Prebiotic
- Zinc Gluconate
- Dextrose for glucose-assisted hydration
Best for families needing a portable, ready-to-drink hydration pouch for children age 1 and older.
Key Differences
The most meaningful data-backed differences in this matchup.
Zarbee's Kids Hydration
Why it matters: Higher sodium can better replace larger sweat losses during prolonged exercise or heat.
Ultima Replenisher Electrolyte Mix
Why it matters: Lower sugar may suit people prioritizing reduced-sugar hydration.
Ultima Replenisher Electrolyte Mix
Why it matters: A lower cost per serving can make frequent use more practical.
Ultima Replenisher Electrolyte Mix
Why it matters: Potassium supports fluid balance and normal muscle function.
Zarbee's Kids Hydration
Why it matters: A broader functional-ingredient profile may appeal to users seeking vitamins or carbohydrate-assisted hydration.
Who Should Choose Each Product?
Use these guidelines to find the best fit for your hydration needs and lifestyle.
Choose Ultima Replenisher Electrolyte Mix if…
- Everyday Hydration
- Travel
- Keto & Low-Carb
- Low Sodium Diets
- General Wellness
- Wellness
- Teens
Ultima Replenisher is a strong zero-sugar, lighter-sodium choice for everyday hydration, low-sodium diets, keto, general wellness, but it is less compelling for heavy endurance athletes needing very high sodium replacement.
Choose Zarbee's Kids Hydration if…
- Hot-Weather Endurance
- Everyday Hydration
- Recovery
- Travel
- Heat & Outdoor Work
- Mild To Moderate Dehydration
- Illness Recovery
- Children Ages 1 And Older
Best for families needing a portable, ready-to-drink hydration pouch for children age 1 and older.
Pros and Considerations
Ultima Replenisher Electrolyte Mix
✓ Strengths
- Moderate sodium level suits everyday hydration needs
- Sugar-free formula
- Provides meaningful potassium
- Includes a useful amount of magnesium
- Competitive cost per serving
● Keep in Mind
- Taste and electrolyte strength may not suit every preference
Zarbee's Kids Hydration
✓ Strengths
- Moderate sodium level suits everyday hydration needs
● Keep in Mind
- Contains 2.0 g sugar per serving
- Magnesium amount is not disclosed in the current SLF record
- Premium cost per serving
Ultima Replenisher Electrolyte Mix
SLF scoring considers nutrition, formula, price, certifications, intended use, and value.
Why it earns the edge
- Moderate sodium level suits everyday hydration needs
- Sugar-free formula
- Provides meaningful potassium
- Includes a useful amount of magnesium
Choose Zarbee's Kids Hydration instead if you:
- Hot-Weather Endurance
- Everyday Hydration
- Recovery
- Travel
Choose Your Electrolyte
Shop the product that best fits your needs. Amazon is shown first when available, with a direct brand option as the fallback.
Ultima Replenisher Electrolyte Mix
Check Price at Walmart Zarbee's Kids Hydration
Check Price at WalmartFind the electrolyte that fits your needs
Explore the full database by activity, sodium level, sugar preference, goals, budget, and retailer.
Frequently Asked Questions
Data-backed answers based on the current SLF product records.
Which has more sodium?
Zarbee's Kids Hydration contains 160 mg of sodium per serving, compared with 55 mg. Higher sodium may be more useful when replacing larger sweat losses during prolonged exercise or hot conditions.
Which has less sugar?
Zarbee's Kids Hydration has less sugar at 2.0 g per serving, versus 0.0 g. This may matter for people limiting added sugar.
Which is less expensive per serving?
Ultima Replenisher Electrolyte Mix is currently less expensive at $0.56 per serving, compared with $1.99. Pricing can change by retailer and package size.
What functional ingredients does each product include?
Ultima Replenisher Electrolyte Mix lists MagnesiumVitamin CZincElectrolyte BlendTrace Minerals. Zarbee's Kids Hydration lists Gum Acacia Prebiotic, Zinc Gluconate, Dextrose for glucose-assisted hydration. Functional ingredients supplement the core electrolyte profile but do not automatically make one product better for every use.
Which product is better overall?
Ultima Replenisher Electrolyte Mix earns the higher SLF comparison score based on the available formula, value, rating, and intended-use data. Zarbee's Kids Hydration may still be the better fit when its specific use cases align more closely with your needs.
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Nutrition facts, pricing, and availability can change. Verify the current label before purchasing. This comparison is informational and is not medical advice.