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4 Gauge
Beginner FriendlyModerate Energy

Roar Ambition

4 Gauge

Clean, beginner-friendly formula with smooth, moderate energy

4.0
150mg caffeine20 servingsmoderate
$45.00($2.25/serving)

Last updated: February 17, 2026

Quick Summary

4 Gauge is a clean, beginner-friendly pre-workout with just 150mg caffeine. Natural ingredients and smooth energy make it perfect for those new to supplements.

Pros & Cons

Pros

  • +Low 150mg caffeine — ideal for beginners and caffeine-sensitive users
  • +Clean formula with natural ingredients
  • +Includes coconut water and L-theanine for smooth energy
  • +No artificial sweeteners or dyes

Cons

  • Only 20 servings per tub
  • Higher price per serving for a moderate formula (~$2.25)
  • Experienced users will likely find it underpowered

Key Ingredients

IngredientDose
L-Citrulline DL-Malate6g
Creatine Monohydrate1g
Acetyl-L-Carnitine500mg
Caffeine Anhydrous150mg
L-Theanine200mg
Coconut Water Powder300mg
Rhodiola Rosea100mg

Full Review

4 Gauge takes a refreshingly different approach in a market dominated by high-stim powerhouses. It's designed for people who want clean energy and solid performance without feeling like their heart is going to explode.

Energy & Focus: 150mg caffeine paired with 200mg L-theanine creates an incredibly smooth, controlled energy experience. You feel alert and motivated but never jittery or anxious. Rhodiola rosea adds an adaptogenic layer that helps your body manage workout stress more effectively. This is pre-workout energy as it should be for most people.

Performance: 6g citrulline malate is a solid dose that delivers real pumps — impressive for a "beginner" product. The creatine at 1g is a light inclusion, more of a bonus than a primary benefit. Coconut water powder adds natural electrolytes that support hydration during training.

Clean Formula Philosophy: 4 Gauge prides itself on using natural ingredients without artificial sweeteners, colors, or fillers. The ingredient list reads cleaner than most competitors, which appeals to health-conscious consumers who scrutinize what goes into their supplements.

Who Is This For: First-time pre-workout users, caffeine-sensitive individuals, morning exercisers who don't want to be wired all day, and anyone who prefers a "less is more" approach to supplementation. It's also excellent for older adults entering the gym who want energy support without cardiovascular stress.

Value: At ~$2.25 per serving with 20 servings, 4 Gauge is on the expensive side — especially for a moderate formula. You're paying a premium for the clean, natural ingredient profile. Budget-conscious beginners might find better value in C4 Original.

Taste & Mixability: The flavor options are limited but well-executed. Fruit Blast is the primary flavor and it's pleasant without being overly sweet. Mixes easily with minimal residue.

The Bottom Line: 4 Gauge is the ideal entry point for anyone who wants to try pre-workouts without diving into the deep end. The clean formula, gentle caffeine dose, and natural ingredients make it a safe, effective choice for beginners. More experienced users will likely want something with more punch, but for its target audience, 4 Gauge delivers exactly what's needed.

Frequently Asked Questions

How much caffeine is in 4 Gauge?

4 Gauge contains 150mg of caffeine per serving.

How many servings are in 4 Gauge?

Each tub of 4 Gauge contains 20 servings at a price of $45, which works out to $2.25 per serving.

What are the key ingredients in 4 Gauge?

The key ingredients include L-Citrulline DL-Malate (6g), Creatine Monohydrate (1g), Acetyl-L-Carnitine (500mg), Caffeine Anhydrous (150mg), L-Theanine (200mg), Coconut Water Powder (300mg), Rhodiola Rosea (100mg).

Is 4 Gauge good for beginners?

With 150mg of caffeine, 4 Gauge has a moderate stimulant profile that can be suitable for beginners. Always start with a half dose to assess tolerance.

What Others Are Saying

Premium UK brand that delivers

4.0

Simon R.

November 28, 2025

4 Gauge has a clean, premium look and the formula backs it up. Natural caffeine from green coffee with L-theanine creates clean, anxiety-free energy. Red beet extract and citrulline deliver solid pumps without the usual synthetic pump stack. Great for those who prefer a natural-sourced formula. Packaging is genuinely the best in the business.

Best pre-workout for clean-label advocates

4.0

Claire D.

January 15, 2026

If you're someone who avoids artificial colors, flavors, and sweeteners, 4 Gauge is one of the only pre-workouts worth taking seriously. Natural caffeine, real fruit extracts, and no junk ingredients. The energy is smooth and the pump is solid. It costs a bit more but you're getting a genuinely cleaner product.

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