Our Verdict
Buoy takes a radically different approach: unflavored liquid drops with zero sweeteners, zero additives, and ocean-sourced minerals. The formula is genuinely clean -- no natural flavors, no sweeteners, no fillers. However, per-serving electrolyte amounts are extremely low (50mg sodium, 10mg potassium), requiring 4-7 daily servings for meaningful hydration support. The product is better understood as a trace mineral and B vitamin supplement than a primary electrolyte source.
Evident Ratings
Buoy Buoy Hydration Drops
Scored across 5 dimensions on a 5-point scale
About Buoy
Buoy was founded in 2017 in San Diego, originating from the WashU Hatchery business incubator program. The brand differentiates on being purposefully unflavored with zero additives, positioning itself as a 'hydration enhancer' for any beverage.
Product specifications
- Form
- concentrate
- Serving Size
- 1 squeeze (1.5ml)
- Calories
- 0
- Sugar
- 0g
- 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 — Zero sweeteners of any kindVerified
- No Artificial Flavors
- Yes — Purposefully unflavoredVerified
- No Artificial Colors
- Yes — No colorsVerified
- No Natural Flavors
- Yes — Purposefully unflavored; no natural flavors addedVerified
- No Fillers
- Yes — Clean ingredient listVerified
- Transparent Label
- Yes — All amounts listed per servingVerified
- No Proprietary Blends
- No — Contains broad 87+ trace minerals without individual breakdownVerified
- Clean Mineral Sources
- Yes — Ocean-sourced minerals, potassium citrateVerified
- Full Ingredients
- Thiamin HCl (Vitamin B1), Pyridoxine HCl (Vitamin B6), Pantothenic Acid (Vitamin B5), Calcium (from Sea Minerals), Magnesium (from Sea Minerals), Chloride (from Sea Minerals), Sodium (from Sea Minerals), Potassium (as Potassium Citrate), Purified Water, Organic Blood Orange Extract, Non-GMO Citric Acid, Organic Acacia, Rosemary, Star Anise, CitrusVerified
Testing & Trust
- Third-Party Tested
- Yes — Claims 'third party testing on every batch' for heavy metals, pathogens, impurities. No lab named, no results published despite claiming to 'publish all results.'Claimed
- COA Available
- No — Claims to publish results but no COAs actually findable anywhere on siteVerified
- Heavy Metals Tested
- Yes — Claims every batch tested for heavy metals + zero microplastics. No lab named, no results published. Ocean-sourced minerals carry higher heavy metal risk.Claimed
- Certifications
- non gmo, vegan, gluten free, keto friendlyVerified
Value & Policy
- Price Per Serving
- $0.33Verified
- Package Price
- $39.00 (120 servings)Verified
- Subscription Discount
- 23%Claimed
Product Features
- Sodium
- 50mgVerified
- Potassium
- 10mgVerified
- Magnesium
- 0.5mgVerified
- Calcium
- 0.5mgVerified
- Chloride
- 80mgVerified
- Sodium Source
- Sea Minerals (ocean-sourced)Verified
- Magnesium Source
- Sea Minerals (ocean-sourced)Verified
- Amazon Rating
- 4.2 stars (5,000 reviews)Verified
See how Buoy 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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