C4 Sport Pre-Workout Powder Blue Raspberry — 30 Servings, 135 mg Caffeine, NSF Certified Sugar-Free

C4 Sport Pre-Workout Powder is a sugar-free, NSF Certified for Sport formula that delivers 135 mg of caffeine and CarnoSyn beta-alanine to help power workouts and extend muscular endurance.

C4 Sport is designed as an everyday pre-workout option for athletes and fitness enthusiasts who want a reliable energy boost without excess stimulants or sugars. The blue raspberry flavor offers a familiar sweet-tart taste, while the NSF Certified for Sport badge signals third-party testing for banned substances — a key consideration for competitive athletes. Each scoop mixes easily with water and is formulated to be the foundation of the brand’s 1-2-3 Sport system.

How much energy does a single serving provide?

One scoop of C4 Sport contains 135 mg of caffeine, a moderate amount that supports alertness and focus without the intensity of high-stimulant formulas. The stimulant level is suitable for many users who want pre-workout energy while avoiding excessive jitters or sleep disruption later in the day.

• 135 mg caffeine per serving — moderate stimulant level
• Sugar-free formula reduces unnecessary calories
• Mix with 6–8 fl. oz. water; take 20–30 minutes before exercise

What ingredients support endurance and performance?

C4 Sport uses CarnoSyn branded beta-alanine, a widely used ingredient in sports supplements that can help increase muscular endurance during repeated efforts. The product combines that with caffeine for focus and other supporting ingredients to create a balanced pre-workout profile tailored to general training sessions.

• CarnoSyn beta-alanine to help sustain high-rep efforts
• Caffeine for alertness and mental drive during workouts
• Formulated without added sugar for cleaner energy delivery

Is this product tested for athletes who compete?

C4 Sport carries NSF Certified for Sport status, meaning the product is subjected to third-party testing protocols that help reduce the risk of banned substances being present. This certification does not guarantee compliance with all sporting bodies but is a widely recognized step toward safer supplementation for competitive athletes.

• NSF Certified for Sport — third-party testing for certain contaminants
• Manufactured under quality controls to support ingredient transparency
• Packaging may vary; check label for the most current certification mark

How should I use this to fit my training routine?

Mix one scoop with 6–8 fl. oz. of water and consume 20–30 minutes before training to allow ingredients to activate. Start with a single serving to assess tolerance to caffeine and beta-alanine; adjust timing or water volume to match personal preference for flavor and intensity.

• One scoop per serving; do not exceed recommended daily intake
• Consume 20–30 minutes prior to exercise for best timing
• Begin with a single serving to evaluate personal response

Who is this for: C4 Sport is aimed at recreational athletes, gym-goers, and competitive trainees looking for a balanced, sugar-free pre-workout that combines moderate caffeine with endurance-supporting beta-alanine. It’s particularly appropriate for those who prefer a tested product with NSF Certified for Sport status and a pleasant blue raspberry flavor that mixes quickly for same-day workouts.

Ingredients

Creatine, CarnoSyn(R) Beta-Alanine, Arginine Alpha Ketoglutarate, Sodium Citrate, Magnesium Chloride, Dipotassium Phosphate, Taurine, Caffine Anyhdrous, Pyridoxal-5-Phosphate, Methylcobalamin