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FitFrek/Comparison/Beast Bulk vs Bulk Black: Which TL Pre-Workout Is Better?
Comparison
🕐 Updated Sep 6, 2026

Beast Bulk vs Bulk Black: Which TL Pre-Workout Is Better?

Nader Qudimat
Nader Qudimat20+ years lifting. Pre-workouts since 2008. 200+ tested.
Doses verified against the current Transparent Labs labels. Bulk Black caffeine is taken from the active formula panel (see note).
Transparent Labs
Beast Bulk
8.6
Our Score
Pump upgrade · Nitrosigine · 200mg
Check Beast
VS
Transparent Labs
Bulk Black
8.7
Our Score
Stim/focus upgrade · 325mg
Check Black
Quick Verdict
In one line Beast Bulk upgrades the pump side of Bulk. Bulk Black upgrades the stimulant/focus side. Same core performance base, different direction.
Beast Bulk Keeps Bulk's 1.3g taurine and adds 1.5g Nitrosigine, while staying at 200mg caffeine.
Bulk Black Pushes caffeine to 325mg and doubles tyrosine to 2g for a stronger, sharper hit.
Beast Bulk
Bulk Black
The formula, side by side
Pump upgrade
Stim / focus
Citrulline Malate
8 g
8 g
Beta-Alanine
4 g
4 g
Betaine
2.5 g
2.5 g
Nitrosigine
1.5 g
-
Taurine
1.3 g
-
Tyrosine
1 g
2 g
Alpha-GPC
300 mg
300 mg
Caffeine
200 mg
325 mg
Theanine
200 mg
200 mg
Theobromine
50 mg
-
SenActiv
50 mg
50 mg
Sources

Doses are from the current Transparent Labs labels. Bulk Black caffeine is taken from the active-ingredient panel at 325mg; the FAQ on the same page lists 350mg, so we use the panel figure. The current Bulk Black active formula does not list taurine or Huperzine A.

What actually feels different

Beast Bulk:

  • More pump & fullness (Nitrosigine)
  • Moderate, controllable energy
  • Easier to run daily

Bulk Black:

  • Stronger stimulant hit (325mg)
  • Sharper focus (2g tyrosine)
  • Better for heavy or early sessions
The verdict
Pick Beast Bulk if Your priority is pump and fullness at a moderate, daily-friendly caffeine dose.
Pick Bulk Black if You want the stronger stimulant and focus experience and tolerate 325mg caffeine well.
Beast Bulk
Transparent Labs
Beast Bulk
Pump upgrade · 200mg
8.6
Score
$49.99 Nutricartel
Check Beast Bulk →
Discount: FITFREKCopied!
bulk black
Transparent Labs
bulk black
Stim / focus · 325mg
8.7
Score
$38.49 Nutricartel
Check Bulk Black →
Discount: FITFREKCopied!
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FAQ
Common questions
What's the core difference? ▼
Beast Bulk keeps regular Bulk's 200mg stimulant profile and 1.3g taurine, then adds 1.5g Nitrosigine. Bulk Black raises caffeine to 325mg and tyrosine to 2g, but drops taurine and theobromine from the current active formula.
How much caffeine is in Bulk Black? ▼
We use 325mg from the current active-ingredient panel. The page's FAQ still says 350mg, so the site itself is inconsistent — the panel is the more reliable figure.
Does Bulk Black have taurine or Huperzine A? ▼
Not in the current formula. Taurine is in Beast Bulk, not current Bulk Black, and Huperzine A isn't listed on the current Bulk Black panel.
Which should I buy? ▼
Beast Bulk for pumps at moderate caffeine; Bulk Black for a stronger stimulant and focus hit. They upgrade different sides of the same base.
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Nader Qudimat
Nader Qudimat
20+ years lifting. Pre-workouts since 2008. 200+ tested.
View full profile →
Beast Bulk $49.99 Bulk Black $38.49