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#11 in Pre-Workout Third-Party Tested

Transparent Labs PreSeries STIM-FREE

by Transparent Labs

"The ultimate stim-free pre-workout — 6g citrulline, 4g beta-alanine, 2.5g betaine with zero caffeine for evening training"

Amazon Rating
4.4/5
Reviews
3,000+
Price Range
$44-50
Servings
30 servings
GMP CertifiedThird-Party Tested
Our Editorial Rating
8.6
Very Good
FormPowder
CategoryPre-Workout
SubcategoryStimulant-Free Pre-Workout
View on Amazon

Overview

Transparent Labs PreSeries STIM-FREE provides clinical doses of performance ingredients without any stimulants — 6g citrulline malate, 4g beta-alanine, 2.5g betaine anhydrous, 1.3g taurine, 1g L-tyrosine, and 300mg alpha-GPC. Every ingredient is at or above clinical dosing, and the fully transparent label shows exact amounts. This is the gold standard stimulant-free pre-workout for evening trainers, caffeine-sensitive individuals, or those who want to stack their own caffeine source. The pumps from 6g citrulline are exceptional.

Key Ingredients

IngredientAmount
Citrulline Malate6000 mg
Beta-Alanine4000 mg
Betaine Anhydrous2500 mg
Taurine1300 mg
Alpha-GPC300 mg

Pros & Cons

What We Like

  • Zero caffeine/stimulants
  • Clinical doses across the board
  • 6g citrulline (full clinical dose)
  • 4g beta-alanine (above clinical dose)
  • Fully transparent label

What Could Be Better

  • Premium price ($44-50)
  • No energy boost (stimulant-free)
  • 30 servings only
  • Large scoop size

Who Is This For?

Best For

  • Evening trainers
  • Caffeine-sensitive individuals
  • Those wanting pumps without stims
  • Those who stack their own caffeine

Not Ideal For

  • Those wanting energy boost
  • Budget pre-workout seekers
  • Those who need caffeine motivation

Our Verdict

8.6/10 — Very Good

Transparent Labs STIM-FREE is the gold standard stimulant-free pre-workout — every ingredient at clinical doses with zero caffeine. The 6g citrulline delivers exceptional pumps. For evening trainers and caffeine-sensitive individuals, this is the pre-workout to choose.

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