Transparent Labs Bulk Black Pre-Workout

Transparent Labs Bulk Black Pre-Workout

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  • Clinically dosed pre-workout 
  • Over 17 g of active ingredients 
  • Vegan 
  • No artificial, sweeteners, coloring, or preservatives
Manufacturer: Categories: ,

Pros & Cons

What we like ...
  • No artificial sweeteners, coloring, or preservatives
  • 3rd-party lab tested
  • Transparent ingredients
  • Subscribe and save 10%
  • Available in 5 flavors
What needs improvement ...
  • Manufactured in a facility that also processes allergens
  • Limited reviews
  • Some flavors may be sold out

Product Summary

Transparent Labs BULK BLACK pre-workout is a higher stimulant version of Transparent Labs’ BULK pre-workout. BULK BLACK has larger doses of caffeine and Infinergy. BULK BLACK is developed using scientific evidence and contains over 17 grams of active ingredients to improve strength, endurance, and muscle pump. This supplement also contains nootropics to improve mood and focus. Transparent Labs recommends mixing a half or one scoop with 8–10 ounces of water 20–30 minutes before you workout.

Customer reviews for BULK BLACK are very positive. Customers like the science-backed and transparent ingredients. They also found the supplement provided a great energy boost without creating jitters or a crash. Reviewers also like the taste of the supplement.


Serving size

1 scoop (21.1 g)




$1.83 (1-time purchase) or $1.65 (subscribe and save)


275 mg


Cherry kiwi, blue raspberry, peach mango, sour gummy, black cherry

GGR Community Reviews

Transparent Labs Bulk Black Pre-Workout

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      Transparent Labs BULK BLACK is a step-up from the original BULK pre-workout with more stimulants for people looking for a bigger energy boost before their workout. It is also very positively reviewed by customers.