Head to head · Pre-Workout
Alani Nu Pre-Workout vs Transparent Labs BULK Pre-Workout
Transparent Labs scores higher overall (8.5 vs 7.5 out of 10), mainly on efficacy, quality & purity and transparency. Alani Nu still leads on experience.
Updated September 2026 from our full reviews · How we score
A flavor-first, beginner-friendly pre-workout with 200 mg caffeine and 200 mg L-theanine; its pump and endurance ingredients are lightly dosed.
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A fully transparent, Informed Choice-certified pre-workout with 8 g citrulline malate, 4 g beta-alanine and a moderate 200 mg of natural caffeine.
We may earn a commission when you buy through these links — it never affects our scores. How we make money
We may earn a commission when you buy through these links — it never affects our scores. How we make money
The short answer
Choose Alani Nu if…
- Beginners and casual gym-goers
- Flavor-focused buyers
- People who want moderate caffeine with L-theanine
- You care most about experience
- You want the lower cost per serving ($1.33)
Choose Transparent Labs if…
- Daily training with moderate caffeine
- Label-readers who want clinical doses
- Athletes who want a certified product
- You care most about efficacy, quality & purity, transparency
Side by side
| Pre-Workout | BULK Pre-Workout | |
|---|---|---|
| Our score | 7.5 / 10 | 8.5 / 10 |
| Efficacy (30%) | 6.6 | 8.8 |
| Quality & Purity (25%) | 7.0 | 9.0 |
| Value (20%) | 8.0 | 8.0 |
| Experience (15%) | 8.8 | 7.4 |
| Transparency (10%) | 8.0 | 9.4 |
| Form | Powder | Powder |
| Serving | 1 scoop (10 g)30 servings per container | 1 full scoop30 servings per container |
| Price per serving | $1.33 | $1.67 |
| Testing & certifications | None verified | Informed Choice |
| Dietary | Vegan, Gluten-free, Sugar-free | — |
| Key ingredients |
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| Flavors | 8 (Hawaiian Shaved Ice, Breezeberry, Pink Slush…) | 8 (Blue Raspberry, Black Cherry, Strawberry Kiwi…) |
| Creator video reviews | 3 | 5 |
Pros and cons
Pre-Workout
- 200 mg caffeine balanced with 200 mg L-theanine
- Fully disclosed label with no proprietary blends and 0 g sugar
- Popular flavors; 4.4 stars from nearly 8,800 buyer reviews
- Affordable: $39.99 for 30 servings on Alani's site and often under $30
- Marketed as vegan and gluten-free
- Beta-alanine (1.6 g) and L-tyrosine (500 mg) are well below research doses
- Citrulline malate (6 g) sits at the low end of the studied range
- No third-party certification or published lab results found
- Sweetened with sucralose and acesulfame potassium
BULK Pre-Workout
- Clinical doses of citrulline malate (8 g), beta-alanine (4 g) and betaine (2.5 g)
- Moderate 200 mg natural caffeine paired with 200 mg L-theanine
- Informed Choice certified (per the brand) with published third-party COAs
- No artificial sweeteners, colors or preservatives
- Wide flavor range (13 flavors on the brand site)
- Stevia-sweetened flavors are divisive; several reviewers call it hard to drink
- About $1.67 per serving, more than mass-market pre-workouts
- Boron and zinc "testosterone support" has weak evidence in healthy lifters
- Amazon listing carries a California Prop 65 warning for lead
Our verdicts
Pre-Workout
Alani Nu Pre-Workout is a pleasant, moderate-stimulant option for beginners and casual lifters who care most about taste. Its caffeine-theanine combination works, but beta-alanine and tyrosine are under-dosed and there is no third-party certification, so serious lifters and tested athletes can do better.
Full review
BULK Pre-Workout
BULK is one of the best-formulated and most trustworthy pre-workouts available: clinical doses, published test results and a moderate caffeine load that suits daily training. The stevia-sweetened flavors are its main weakness, so expect a stronger, less candy-like taste than mainstream brands.
Full review