Read a pre-workout label before you buy
Compare pre-workout formulas by caffeine, serving size, ingredients, and cost.
- Check caffeine per serving and count the caffeine you consume elsewhere.
- Compare the complete ingredient panel, serving size, and price per serving.
- Verify the exact formula and current label before buying.
What is pre-workout?
Pre-workouts combine ingredients marketed for training. Formulas vary: many contain caffeine, while others are stimulant-free. Caffeine may help reduce fatigue and support exercise performance, but responses differ.
How to read the label
Find milligrams per serving and consider caffeine from coffee, energy drinks, and other supplements. If the amount is unclear, check with the manufacturer before use.
Check the scoop size, number of servings, and directions. The amount you take determines how much caffeine and other ingredients you get.
Review the ingredient list and amounts. A proprietary blend can list a combined weight without showing each ingredient’s amount.
Look for independent certification, verify it with the certifier, and divide the current price by the number of servings.
Three formulas to compare
C4 Original and C4 Sport are different formulas. Our listed details are a starting point; check the current label and exact flavor or container before buying.
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Consider your routine
Caffeine can affect sleep and cause side effects such as jitters, anxiety, or a racing heart, and individual sensitivity varies. Follow label directions and consider your total caffeine intake and training time. If you have a medical condition, take medication, or are pregnant or nursing, ask a healthcare professional before using a pre-workout.
Sources
Use the current brand label and retailer listing to confirm formulas, serving sizes, ingredients, and pricing.
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