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#5 in Pre-Workout Third-Party Tested

ALLMAX Impact Pump

by ALLMAX

"Caffeine-free pump pre-workout with 6g citrulline, 3g GlycerSize, and nitric oxide boosters"

Amazon Rating
4.4/5
Reviews
3,500+
Price Range
$34-42
Servings
30 servings
Informed Choice CertifiedGMP Certified
Our Editorial Rating
8.3
Very Good
FormPowder
CategoryPre-Workout
SubcategoryStim-Free Pre-Workout
View on Amazon

Overview

ALLMAX Impact Pump is a stimulant-free pre-workout designed purely for muscle pumps and performance without any caffeine or stimulants. The formula includes 6g L-citrulline, 3g GlycerSize (65% glycerol), 1.5g betaine, 1g agmatine sulfate, and 600mg alpha-GPC for focus. This makes it ideal for evening workouts, caffeine-sensitive individuals, or those who want to stack it with their own caffeine source. ALLMAX is a Canadian sports nutrition company known for clinical dosing and transparent labels.

Key Ingredients

IngredientAmount
L-Citrulline6000 mg
GlycerSize (Glycerol)3000 mg
Betaine Anhydrous1500 mg
Agmatine Sulfate1000 mg
Alpha-GPC600 mg

Pros & Cons

What We Like

  • Zero caffeine/stimulants
  • Clinical doses of pump ingredients
  • Can be stacked with any stimulant
  • Great for evening workouts
  • Alpha-GPC for focus without stims

What Could Be Better

  • No energy boost (by design)
  • GlycerSize can make powder clumpy
  • Only 30 servings
  • Less popular than stimulant pre-workouts

Who Is This For?

Best For

  • Evening/night gym-goers
  • Caffeine-sensitive athletes
  • Those wanting to control their own caffeine
  • Pump-focused training

Not Ideal For

  • Those wanting energy from their pre-workout
  • Morning workout warriors who need a wake-up
  • Those who don't care about pumps

Our Verdict

8.3/10 — Very Good

ALLMAX Impact Pump is the best stimulant-free pre-workout for pure pump performance. The clinical doses of citrulline, glycerol, and agmatine create impressive vascularity and fullness. Perfect for evening lifters or those who prefer to manage their caffeine separately.

Alternatives to Consider