Our Verdict
SOS Hydration has legitimate ORS science credentials (WHO-based formulation, independent university studies on its low-osmolarity design) and a clean ingredient list with natural colors and no fillers. The addition of Vitamins D, B6, B12, and folic acid differentiates it from pure electrolyte products. However, the magnesium content is negligible (~20mg), there's no calcium, and the Zinc Sulfate is a suboptimal form. At $1.00/serving it's mid-priced for what's essentially a sodium-potassium-focused ORS with vitamins.
Evident Ratings
SOS Hydration SOS Hydration Electrolyte Drink Mix
Scored across 5 dimensions on a 5-point scale
About SOS Hydration
Founded in 2013 with ORS principles from WHO rehydration guidelines. Positioned for medical-grade hydration. Has conducted multiple independent studies at universities (UK, New Zealand). Previously publicly traded as SOSH.
Product specifications
- Form
- powder
- Serving Size
- 1 stick (6g), mix with 8 oz water
- Calories
- 15
- Sugar
- 3g
- Made In
- USA
How we scored this
Every data point below is tagged as Verified (independently confirmed) or Claimed (brand-stated).
Material Safety
- No Artificial Sweeteners
- Yes — Uses sugar, dextrose, and steviaVerified
- No Artificial Flavors
- Yes — Uses natural flavorsVerified
- No Artificial Colors
- Yes — Uses beet root powder, annatto, turmeric for colorVerified
- No Natural Flavors
- No — Contains 'Natural Flavor'Verified
- No Fillers
- Yes — No maltodextrin, silicon dioxide, or other common fillersVerified
- Transparent Label
- Yes — All amounts individually listedVerified
- No Proprietary Blends
- YesVerified
- Clean Mineral Sources
- Yes — Uses Magnesium Citrate and Sodium CitrateVerified
- Sweetener
- Sugar, Dextrose, Stevia Extract (Rebaudioside A)Verified
- Full Ingredients
- Sugar, Sodium Citrate, Salt, Potassium Chloride, L-Malic Acid, Dextrose, Magnesium Citrate, Natural Flavor, Citric Acid, Ascorbic Acid (Vitamin C), Beet Root Powder (color), Annatto (color), Turmeric (color), Stevia Extract (Rebaudioside A), Zinc Sulfate, Vitamin D (Cholecalciferol), Vitamin B6 (Pyridoxine Hydrochloride), Folic Acid, Vitamin B12 (Cyanocobalamin)Verified
Testing & Trust
- Third-Party Tested
- Yes — Multiple independent studies conducted at universities (Coventry, Newman, Auckland University of Technology). Osmolarity verified by third-party specialist lab. Not NSF/Informed Sport certified.Claimed
- COA Available
- Unknown
- Heavy Metals Tested
- Unknown
- Certifications
- non gmo, vegan, gluten free, keto friendlyVerified
Value & Policy
- Price Per Serving
- $1.00Verified
- Package Price
- $19.99 (20 servings)Verified
- Return Policy
- 30-day money backClaimed
- Subscription Discount
- 15%Claimed
- Sample Packs
- AvailableVerified
Product Features
- Sodium
- 330mgVerified
- Potassium
- 190mgVerified
- Sodium Source
- Sodium Citrate, SaltVerified
- Magnesium Source
- Magnesium Citrate (good bioavailability, but very small amount)Verified
- Amazon Rating
- 4.4 stars (3,000 reviews)Verified
- Red Flags
- Magnesium amount not prominently disclosed (very small, ~20mg); No calcium content; Zinc Sulfate is a less bioavailable zinc form; Previously publicly traded (SOSH) -- SEC filings show limited revenueVerified
See how SOS Hydration stacks up against every electrolytes we tested
Our full electrolytes comparison ranks every brand across the same scoring dimensions you saw above — formulation, testing, trust, value, and sourcing.
See Best Electrolytes →Other top electrolytes we tested
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