EFX Sports Karbolyn® Hydrate, Watermelon Wave, 4 lb 1.5 oz (1,856 g) supplement bottle
EFX Sports

Karbolyn® Hydrate, Watermelon Wave, 4 lb 1.5 oz (1,856 g)

What We Researched
7 active ingredients analyzed · 3 inactive ingredients decoded · 2 brand certifications checked · 2 retailers compared · Last updated: Mar 2026
76
Product Score Fair
79
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Phosphorus (as potassium phosphate, magnesium phosphate, sodium phosphate) 47 g 4%
Magnesium (as magnesium phosphate) 13 mg 3%
Sodium (as sodium phosphate) 15 mg <1%
Potassium (as potassium phosphate) 44 mg <1%
Karbolyn® (homopolysaccharide derived from potato, rice and corn) 25 g
Bioavailability Excellent

Absorption Rating

  • Phosphorus (as potassium phosphate, magnesium phosphate, sodium phosphate) Good
  • Magnesium (as magnesium phosphate) Good
  • Sodium (as sodium phosphate) Good
  • Potassium (as potassium phosphate) Good
  • Karbolyn® (homopolysaccharide derived from potato, rice and corn) Fair
Other Ingredients Excellent

Fillers & Additives

  • Citric Acid
  • Natural & Artificial Flavors
  • Sucralose
Efficacy Very Poor

Dosage Analysis

  • Phosphorus (as potassium phosphate, magnesium phosphate, sodium phosphate) 47 g High
  • Magnesium (as magnesium phosphate) 13 mg Under-dosed
  • Sodium (as sodium phosphate) 15 mg Under-dosed
  • Potassium (as potassium phosphate) 44 mg Under-dosed
  • Karbolyn® (homopolysaccharide derived from potato, rice and corn) 25 g Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Calories 110
Total Carbohydrate 27 g 10%**
Phosphorus (as potassium phosphate, magnesium phosphate, sodium phosphate) 47 g 4%
Magnesium (as magnesium phosphate) 13 mg 3%
Sodium (as sodium phosphate) 15 mg <1%
Potassium (as potassium phosphate) 44 mg <1%
Karbolyn® (homopolysaccharide derived from potato, rice and corn) 25 g

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Citric Acid Safe

Adds tartness and acts as a natural preservative. Also aids in ingredient stability.

Natural & Artificial Flavors Generally_safe

It is used to improve the taste of the product.

Sucralose Generally_safe

Adds sweetness to chewables, gummies, and powdered supplements without calories.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$57$56$55$54$53 Mar 12 $55.00
iHerb

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
EFX Sports

Founded 2005 · Billings, Montana, USA · 27 products · efxsports.com/

Certifications

2 certifications
Informed Sport Verified Source
Fda Gmp Inspections Verified Source

Transparency

3 claims
Third Party Testing Claim — Verified Source
In House Testing — Verified Source

Violation History

2 incidents
Prop 65 Lead2018-04-20Source
Lawsuit False advertising regarding the bioavailability and effectiveness of Kre-Alkalyn EFX Creatine compared to creatine monohydrate.2012Source
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Frequently Asked Questions
Is EFX Sports Karbolyn® Hydrate, Watermelon Wave a good supplement?

EFX Sports Karbolyn® Hydrate, Watermelon Wave, 4 lb 1.5 oz (1,856 g) received a product quality score of 76/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 7 active ingredients with 66 servings per container. Of the 3 inactive ingredients, 1 are rated safe and 0 are flagged for review. The manufacturer, EFX Sports, holds a brand trust score of 79/100 with 2 verified certifications including Informed Sport, Fda Gmp Inspections.

What are the ingredients in EFX Sports Karbolyn® Hydrate, Watermelon Wave?

EFX Sports Karbolyn® Hydrate, Watermelon Wave contains 7 active ingredients: Calories (110), Total Carbohydrate (27 g), Phosphorus (as potassium phosphate, magnesium phosphate, sodium phosphate) (47 g), Magnesium (as magnesium phosphate) (13 mg), Sodium (as sodium phosphate) (15 mg), Potassium (as potassium phosphate) (44 mg), and 1 more. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is EFX Sports Karbolyn® Hydrate, Watermelon Wave safe to take?

EFX Sports Karbolyn® Hydrate, Watermelon Wave, 4 lb 1.5 oz (1,856 g) has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is EFX Sports a trustworthy supplement brand?

EFX Sports receives a brand trust score of 79/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 2005 and headquartered in Billings, Montana, USA, the company offers 27 products in their lineup. They hold 2 verified certifications including Informed Sport, Fda Gmp Inspections. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: EFX Sports has 2 historical regulatory incidents on record, which are factored into the trust score.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.