SLF Electrolyte Comparison · 2026
Ultima Replenisher Electrolyte Mix
Everyday Hydration · Travel · Keto & Low-Carb
Check Price at TargetRead full review ↗
Re-Lyte Hydration Electrolyte Mix
Hot-Weather Endurance · Endurance Athletes · Everyday Hydration
Check Price at TargetRead full review ↗Re-Lyte Hydration Electrolyte Mix
Best overall data score for this matchup based on formula, rating, and intended use.
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At a Glance
A quick side-by-side look at nutrition and overall performance.
| Feature | Ultima Replenisher Electrolyte Mix | Re-Lyte Hydration Electrolyte Mix | 🏆 Edge |
|---|---|---|---|
| Sodium | 55 mg | 810 mg | Re-Lyte Hydration Electrolyte Mix |
| Potassium | 250 mg | 400 mg | Re-Lyte Hydration Electrolyte Mix |
| Magnesium | 100 mg | 50 mg | Ultima Replenisher Electrolyte Mix |
| Sugar | 0.0 g | 0.0 g | Tie |
| Calories | 0 | 0 | Tie |
| Sweetener | Organic Stevia Leaf Extract | Stevia Leaf Extract | Preference |
| SLF rating | ★★★★★4.7/5 | ★★★★★4.9/5 | Re-Lyte Hydration Electrolyte Mix |
Outdoor Products Tadpole 3.5L Hydration Pack
A compact hydration pack with hands-free water access and lightweight storage for hiking, running, cycling and outdoor training.
Shop at TargetFunctional 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…
Re-Lyte Hydration Electrolyte Mix
- Real Salt®Magnesium GlycinateMagnesium MalateCoconut Water PowderTrace Minerals
Re-Lyte is one of the best electrolyte powders available for people following keto or carnivore diets, practicing intermittent fasting, or training in hot conditions.…
Key Differences
The most meaningful data-backed differences in this matchup.
Re-Lyte Hydration Electrolyte Mix
Why it matters: Higher sodium can better replace larger sweat losses during prolonged exercise or heat.
Re-Lyte Hydration Electrolyte Mix
Why it matters: Potassium supports fluid balance and normal muscle function.
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 Re-Lyte Hydration Electrolyte Mix if…
- Hot-Weather Endurance
- Endurance Athletes
- Everyday Hydration
- Exercise & Workouts
- Recovery
- Travel
- Heat & Outdoor Work
- Keto & Low-Carb
Re-Lyte is one of the best electrolyte powders available for people following keto or carnivore diets, practicing intermittent fasting, or training in hot conditions. Its exceptionally high sodium content and clean ingredient profile make it a standout option for serious electrolyte replacement.
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
- Fits keto and low-carbohydrate lifestyles
● Keep in Mind
- Taste and electrolyte strength may not suit every preference
Re-Lyte Hydration Electrolyte Mix
✓ Strengths
- Substantial sodium supports exercise and hot-weather hydration
- Sugar-free formula
- Provides meaningful potassium
- Includes a useful amount of magnesium
- Fits keto and low-carbohydrate lifestyles
● Keep in Mind
- Taste and electrolyte strength may not suit every preference
Re-Lyte Hydration Electrolyte Mix
SLF scoring considers nutrition, formula, certifications, rating, and intended use.
Why it earns the edge
- Substantial sodium supports exercise and hot-weather hydration
- Sugar-free formula
- Provides meaningful potassium
- Includes a useful amount of magnesium
Choose Ultima Replenisher Electrolyte Mix instead if you:
- Everyday Hydration
- Travel
- Keto & Low-Carb
- Low Sodium Diets
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 Target Re-Lyte Hydration Electrolyte Mix
Check Price at TargetFind 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?
Re-Lyte Hydration Electrolyte Mix contains 810 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?
Tie has less sugar at 0.0 g per serving, versus 0.0 g. This may matter for people limiting added sugar.
What functional ingredients does each product include?
Ultima Replenisher Electrolyte Mix lists MagnesiumVitamin CZincElectrolyte BlendTrace Minerals. Re-Lyte Hydration Electrolyte Mix lists Real Salt®Magnesium GlycinateMagnesium MalateCoconut Water PowderTrace Minerals. Functional ingredients supplement the core electrolyte profile but do not automatically make one product better for every use.
Which product is better overall?
Re-Lyte Hydration Electrolyte Mix earns the higher SLF comparison score based on the available formula, rating, and intended-use data. Ultima Replenisher Electrolyte Mix may still be the better fit when its specific use cases align more closely with your needs.
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Nutrition facts and availability can change. Verify the current label and purchase details with Target before purchasing. This comparison is informational and is not medical advice.