SLF Electrolyte Comparison · 2026
SOS Hydration
Hot-Weather Endurance · Everyday Hydration · Exercise & Workouts
Check Price at CVSRead full review ↗
Cadence Core 500
Hot-Weather Endurance · Endurance Athletes · Everyday Hydration
Check Price at CVSRead full review ↗Cadence Core 500
Best overall data score for this matchup based on formula, value, rating, and intended use.
Explore Both Brands
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 | SOS Hydration | Cadence Core 500 | 🏆 Edge |
|---|---|---|---|
| Sodium | 330 mg | 500 mg | Cadence Core 500 |
| Potassium | 190 mg | 200 mg | Cadence Core 500 |
| Magnesium | 35 mg | 20 mg | SOS Hydration |
| Sugar | 3.0 g | 0.0 g | SOS Hydration |
| Calories | 15 | 0 | SOS Hydration |
| Sweetener | Sugar, dextrose, stevia extract | Natural sweetener not publicly specified | Preference |
| Cost per serving | $1.50 | $1.50 | Tie |
| SLF rating | ★★★★☆4.3/5 | ★★★★★4.6/5 | Cadence Core 500 |
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.
SOS Hydration
- Vitamins B6
- B12
- C
- D
- folic acid
- magnesium
- zinc
A compelling low-sugar, ORS-inspired electrolyte powder for daily hydration, exercise, heat and travel, especially for shoppers who want more sodium than many everyday mixes.
Cadence Core 500
- Core electrolyte blend
Best for training, endurance, heat, and active daily hydration.
Key Differences
The most meaningful data-backed differences in this matchup.
Cadence Core 500
Why it matters: Higher sodium can better replace larger sweat losses during prolonged exercise or heat.
Cadence Core 500
Why it matters: Lower sugar may suit people prioritizing reduced-sugar hydration.
Cadence Core 500
Why it matters: Potassium supports fluid balance and normal muscle function.
SOS 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 SOS Hydration if…
- Hot-Weather Endurance
- Everyday Hydration
- Exercise & Workouts
- Travel
- Heat & Outdoor Work
- Daily Hydration
- Sweating
- Heat And Travel
A compelling low-sugar, ORS-inspired electrolyte powder for daily hydration, exercise, heat and travel, especially for shoppers who want more sodium than many everyday mixes.
Choose Cadence Core 500 if…
- Hot-Weather Endurance
- Endurance Athletes
- Everyday Hydration
- Exercise & Workouts
- Travel
- Heat & Outdoor Work
- Keto & Low-Carb
- Training
Best for training, endurance, heat, and active daily hydration.
Pros and Considerations
SOS Hydration
✓ Strengths
- Moderate sodium level suits everyday hydration needs
● Keep in Mind
- Contains 3.0 g sugar per serving
Cadence Core 500
✓ Strengths
- Substantial sodium supports exercise and hot-weather hydration
- Sugar-free formula
- Provides meaningful potassium
- Fits keto and low-carbohydrate lifestyles
● Keep in Mind
- Taste and electrolyte strength may not suit every preference
Cadence Core 500
SLF scoring considers nutrition, formula, price, certifications, intended use, and value.
Why it earns the edge
- Substantial sodium supports exercise and hot-weather hydration
- Sugar-free formula
- Provides meaningful potassium
- Fits keto and low-carbohydrate lifestyles
Choose SOS Hydration instead if you:
- Hot-Weather Endurance
- Everyday Hydration
- Exercise & Workouts
- 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.
SOS Hydration
Check Price at CVS Cadence Core 500
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?
Cadence Core 500 contains 500 mg of sodium per serving, compared with 330 mg. Higher sodium may be more useful when replacing larger sweat losses during prolonged exercise or hot conditions.
Which has less sugar?
SOS Hydration has less sugar at 3.0 g per serving, versus 0.0 g. This may matter for people limiting added sugar.
Which is less expensive per serving?
Tie is currently less expensive at $1.50 per serving, compared with $1.50. Pricing can change by retailer and package size.
What functional ingredients does each product include?
SOS Hydration lists Vitamins B6, B12, C, D, folic acid, magnesium. Cadence Core 500 lists Core electrolyte blend. Functional ingredients supplement the core electrolyte profile but do not automatically make one product better for every use.
Which product is better overall?
Cadence Core 500 earns the higher SLF comparison score based on the available formula, value, rating, and intended-use data. SOS Hydration may still be the better fit when its specific use cases align more closely with your needs.
Popular CVS Comparisons
Relevant brand matchups ranked by shopper interest and shown only for CVS.
Nutrition facts, pricing, and availability can change. Verify the current label before purchasing. This comparison is informational and is not medical advice.