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Klean Athlete Klean Creatine Review

8.7 Formula Score
Updated April 2026
By Duc Nguyen
Bottom Line
Klean Creatine sits right in the middle between the bare-bones value of BulkSupplements and the premium quality of Thorne. NSF Certified for Sport, clean label, and from a brand built specifically for athletes. If you want the certification without paying Thorne prices, this is a strong pick.

Who Klean Athlete Is Built For

Klean Athlete is a brand that was created with competitive athletes in mind. Every product they make carries the NSF Certified for Sport designation, which means it has been tested not just for purity but specifically for substances banned in sport. That matters a lot if you compete in any tested athletic environment.

For recreational gym-goers, the certification still matters as a quality signal. NSF testing is rigorous and independent, and a product earning that designation means you can trust that what is on the label is what is in the container.

The Product Itself

Klean Creatine is pure creatine monohydrate, 5 grams per serving, no added ingredients. The powder is fine-textured and mixes decently in water or a shake. Like all unflavored creatine it has virtually no taste on its own, which makes it easy to add to whatever you are already drinking.

The main difference between Klean and Thorne comes down to price and brand familiarity. Thorne has a longer track record and broader brand recognition. Klean Athlete is more focused specifically on athletic performance. Both are excellent options and the creatine monohydrate inside them is functionally identical.

Performance and Results

Creatine works the same regardless of brand. Five grams daily over several weeks saturates your muscles and delivers the well-documented benefits including improved strength, better power output, faster recovery between sets, and potentially improved cognitive function. Klean Creatine gives you all of that with the added confidence of NSF certification.

Value Compared to Competitors

At around 48 cents per serving, Klean Creatine is priced similarly to Thorne. The decision between the two comes down mostly to brand preference and where you are buying from. Both are solid choices at this price point. If value is your primary concern, BulkSupplements is the better option. If you want a certified product from a sport-focused brand, Klean Athlete delivers.

Creatine per Serving5g
FormMonohydrate
NSF Certified for SportYes
FlavoringNone
Servings60
FillersNone
Price per Serving~$0.58
Brand FocusCompetitive athletes
What I Like
  • NSF Certified for Sport, safe for tested athletes
  • Pure creatine monohydrate, no additives
  • Sport-focused brand with strong quality standards
  • Clean label with full transparency
  • Good option for competitive athletes
Worth Knowing
  • More expensive than BulkSupplements
  • Fewer servings per container than competitors
  • Not as well known as Thorne
  • Only available in unflavored
  • Smaller brand may have less retailer availability
Klean Athlete Klean Creatine
Editor's Pick Creatine · Formula Score 8.7
~$29 / 60 servings
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