- Energy & Performance for Next Level Results: The days of mediocre workouts are over. Feel the momentum, and experience high level energy and performance from start to finish, with C4. C4’s premium formula packs ingredients that get you energized and in the zone. Improved training sessions means even better results.
- America’s Number 1 Selling Pre-Workout+: Cellucor's C4 is a trusted pre-workout for men and women of all training levels. C4 has proven to be a leader in its category, and has earned the title of America’s Number One Selling Pre-workout.
- Unbeatable Flavors: C4 is well known and respected for offering a variety of great tasting flavors that continue to raise the bar.
- Premium Ingredients: C4 is a trusted pre-workout that promises quality of ingredients and purposefully crafted blend of patented ingredients that promote energy and endurance for better workouts.*
- 100% Satisfaction Guarantee: All Cellucor sales from Amazon.com are guaranteed to give you an edge in performance. We understand the importance of investing in your health, so we extend a 30-day, full money-back guarantee. We are so confident you will love the product and see transformative results that we are happy to put our money where our mouth is.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.