Transparent Labs PreSeries BULK BLACK
by Transparent Labs
"The high-stim transparent pre-workout — 305mg caffeine with clinical doses of citrulline, beta-alanine, and nootropics"
Overview
Transparent Labs PreSeries BULK BLACK is the high-stimulant version of their flagship BULK pre-workout, featuring 305mg caffeine from dual sources (caffeine anhydrous + di-caffeine malate for sustained energy), 8g citrulline malate, 4g beta-alanine, 2.5g betaine, and a nootropic blend including 300mg Alpha-GPC and 100mg theanine. The 'transparent' label means every ingredient and dose is disclosed — no proprietary blends. The nootropic additions (Alpha-GPC + theanine) provide focused, clean energy rather than jittery stimulation.
Key Ingredients
| Ingredient | Amount |
|---|---|
| Citrulline Malate | 8000 mg |
| Beta-Alanine | 4000 mg |
| Caffeine (Dual Source) | 305 mg |
| Alpha-GPC | 300 mg |
| Betaine Anhydrous | 2500 mg |
| L-Theanine | 100 mg |
Pros & Cons
What We Like
- Fully transparent label
- Clinical doses of all key ingredients
- Dual-source caffeine (sustained energy)
- Nootropic blend (Alpha-GPC + theanine)
- No artificial colors or preservatives
What Could Be Better
- Premium price ($50-60)
- 305mg caffeine (very high)
- 30 servings only
- Large scoop size
Who Is This For?
Best For
- Experienced pre-workout users
- Those wanting transparent dosing
- High-stim tolerance individuals
- Those wanting nootropic + stim combo
Not Ideal For
- Caffeine-sensitive individuals
- Pre-workout beginners
- Budget supplement seekers
Our Verdict
Transparent Labs BULK BLACK is the premium high-stim pre-workout for experienced users who demand clinical doses and full transparency. The nootropic additions elevate it above typical stim-heavy pre-workouts. For those who want the strongest transparent pre-workout available.