Klean Pre-Workout

klean pre workout

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  • NSF Certified for Sport 
  • 75 mg of caffeine 
  • Vegan
  • GMO, wheat, and gluten free 
  • Natural lemon tea flavor
Manufacturer: Categories: ,

Pros & Cons

What we like ...
  • Third-party tested and NSF Certified for Sport
  • Science-backed formula
  • Vegan
  • Made in the USA
  • No artificial flavors, coloring, or sweeteners
What needs improvement ...
  • Only available in 1 flavor
  • Very limited customer reviews
  • Only 20 servings per container
  • Customers don’t like the flavor

Product Summary

Klean Pre-Workout has 75 milligrams of caffeine, less than an average cup of coffee, and 300 milligrams of standardized nitrates to provide energy for your workouts. This pre-workout formula is third-party tested and NSF-Certified for Sport.

Klean recommends putting one scoop into 6-8 ounces of water about 30 minutes before your workout. According to Klean, this pre-workout will enhance athletic performance and protect against free radicals. They share that caffeine specifically supports focus, alertness, and endurance.

There are extremely limited reviews of this pre-workout. Customers shared that they thought it helped improve their workouts and thought it mixed well. Most people didn’t love the flavor, but say they eventually grew used to it.


Serving Size

1 scoop (10 g)






75 mg


Natural lemon tea flavor

GGR Community Reviews

Klean Pre-Workout

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      Klean Pre-Workout is a third-party tested pre-workout without artificial flavors, colors, or sweeteners that works for those on a vegan diet. Unfortunately it is only available in one flavor that customers didn’t love.