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Transparent Labs BULK Black Pre-Workout vs Legion Pulse Pre-Workout

The two cleanest labels in pre-workout disagree on exactly one thing: how hard the caffeine should hit.

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Transparent Labs BULK Black Pre-Workout
Transparent Labs

Transparent Labs BULK Black Pre-Workout

$54.99Check price at AmazonRead full review
Legion Pulse Pre-Workout
Legion Athletics

Legion Pulse Pre-Workout

$44.99Check price at AmazonRead full review

Our test scores

9.3 / 10
Transparent Labs BULK Black Pre-Workout
8.8 / 10
Legion Pulse Pre-Workout

Side by side

Transparent Labs BULK Black Pre-WorkoutLegion Pulse Pre-Workout
Price$54.99$44.99
Caffeine325mg350mg
Citrulline Malate8g8g
Beta-Alanine4g3.6g
Betaine2.5g2.5g
Alpha-GPC300mg300mg
L-Theanine200mg350mg
Servings3020

Transparent Labs BULK Black Pre-Workout

  • Fully disclosed, no proprietary blends
  • Strong clinical doses across the board
  • Public third-party purity reports
  • Nootropics (alpha-GPC, theanine, tyrosine)
  • High-stim (325mg caffeine)
  • Beta-alanine tingling
  • No current iHerb listing found

Legion Pulse Pre-Workout

  • Clinically dosed and fully disclosed
  • Labdoor certified with published COAs
  • Made in NSF-certified, FDA-inspected cGMP facility
  • 1:1 caffeine-to-theanine focus blend
  • High caffeine (350mg)
  • Beta-alanine tingling
  • ~$2.25/serving isn't cheap

Which should you buy?

Choose the Transparent Labs BULK Black Pre-Workout if

  • Label-transparency fans
  • Stim-tolerant lifters
  • Those wanting full clinical doses

Skip it if

  • Stim-sensitive users
  • Those avoiding beta-alanine tingles

Choose the Legion Pulse Pre-Workout if

  • Evidence-based formulas
  • Focus-oriented users
  • Quality-control conscious

Skip it if

  • Caffeine-sensitive
  • Budget shoppers
Check price: Transparent Labs BULK Black Pre-WorkoutCheck price: Legion Pulse Pre-Workout