SLF Electrolyte Comparison · 2026
CVS Health Rapid Hydration
Hot-Weather Endurance · Exercise & Workouts · Travel
Check Price at CVSRead full review ↗
Powerade Zero
Hot-Weather Endurance · Everyday Hydration · Exercise & Workouts
Check Price at CVSRead full review ↗Powerade Zero
Best overall data score for this matchup based on formula, value, rating, and intended use.
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Continue to the full Brand Hubs for products, flavors, buying guides, and every published comparison.
At a Glance
A quick side-by-side look at nutrition, value, and overall performance.
| Feature | CVS Health Rapid Hydration | Powerade Zero | 🏆 Edge |
|---|---|---|---|
| Sodium | 510 mg | 400 mg | CVS Health Rapid Hydration |
| Potassium | 380 mg | 130 mg | CVS Health Rapid Hydration |
| Magnesium | Not listed | Not listed | Tie |
| Sugar | 11.0 g | 0.0 g | CVS Health Rapid Hydration |
| Calories | 50 | 0 | CVS Health Rapid Hydration |
| Sweetener | Sucrose, dextrose, stevia extract | Sucralose and Acesulfame Potassium | Preference |
| Cost per serving | $1.67 | $1.99 | CVS Health Rapid Hydration |
| SLF rating | ★★★☆☆3.2/5 | ★★★★☆4.2/5 | Powerade Zero |
HydraPeak Voyager 40 oz Stainless Steel Tumbler
Keep hydration close all day with this 40 oz insulated stainless steel tumbler featuring a handle, 2-in-1 sip-and-straw lid, non-slip base, and cup-holder-friendly design.
Functional Ingredients
Additional active or performance-oriented ingredients recorded in the SLF database.
CVS Health Rapid Hydration
- Vitamin C
- vitamins B3
- B5
- B6 and B12
A strong value-oriented CVS alternative to Liquid I.V. for rapid hydration, especially for shoppers who prefer to buy in-store or through CVS delivery.
Powerade Zero
- Vitamin C
- Vitamin B12
Best as a convenient budget sports drink, not as a premium or clean-label electrolyte.
Key Differences
The most meaningful data-backed differences in this matchup.
CVS Health Rapid Hydration
Why it matters: Higher sodium can better replace larger sweat losses during prolonged exercise or heat.
Powerade Zero
Why it matters: Lower sugar may suit people prioritizing reduced-sugar hydration.
CVS Health Rapid Hydration
Why it matters: A lower cost per serving can make frequent use more practical.
CVS Health Rapid Hydration
Why it matters: Potassium supports fluid balance and normal muscle function.
CVS Health Rapid 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 CVS Health Rapid Hydration if…
- Hot-Weather Endurance
- Exercise & Workouts
- Travel
- Heat & Outdoor Work
- Cvs Shoppers
- Hot Weather
- Heavy Sweating And Occasional Rapid Hydration
A strong value-oriented CVS alternative to Liquid I.V. for rapid hydration, especially for shoppers who prefer to buy in-store or through CVS delivery.
Choose Powerade Zero if…
- Hot-Weather Endurance
- Everyday Hydration
- Exercise & Workouts
- Travel
- Heat & Outdoor Work
- Keto & Low-Carb
- Budget Hydration
- Gym Workouts
Best as a convenient budget sports drink, not as a premium or clean-label electrolyte.
Pros and Considerations
CVS Health Rapid Hydration
✓ Strengths
- Substantial sodium supports exercise and hot-weather hydration
- Provides meaningful potassium
● Keep in Mind
- Contains 11.0 g sugar per serving
- Magnesium amount is not disclosed in the current SLF record
Powerade Zero
✓ Strengths
- Moderate sodium level suits everyday hydration needs
- Sugar-free formula
- Fits keto and low-carbohydrate lifestyles
● Keep in Mind
- Magnesium amount is not disclosed in the current SLF record
- Premium cost per serving
Powerade Zero
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
- Fits keto and low-carbohydrate lifestyles
Choose CVS Health Rapid Hydration instead if you:
- Hot-Weather Endurance
- Exercise & Workouts
- Travel
- Heat & Outdoor Work
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.
CVS Health Rapid Hydration
Check Price at CVS Powerade Zero
Check Price at CVSFind 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?
CVS Health Rapid Hydration contains 510 mg of sodium per serving, compared with 400 mg. Higher sodium may be more useful when replacing larger sweat losses during prolonged exercise or hot conditions.
Which has less sugar?
CVS Health Rapid Hydration has less sugar at 11.0 g per serving, versus 0.0 g. This may matter for people limiting added sugar.
Which is less expensive per serving?
CVS Health Rapid Hydration is currently less expensive at $1.67 per serving, compared with $1.99. Pricing can change by retailer and package size.
What functional ingredients does each product include?
CVS Health Rapid Hydration lists Vitamin C, vitamins B3, B5, B6 and B12. Powerade Zero lists Vitamin C, Vitamin B12. Functional ingredients supplement the core electrolyte profile but do not automatically make one product better for every use.
Which product is better overall?
Powerade Zero earns the higher SLF comparison score based on the available formula, value, rating, and intended-use data. CVS Health Rapid 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.