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Free standard shipping on orders
We are pleased to offer Free Worldwide Shipping on all orders, delivering to all countries and regions supported by our logistics network.
There are no restrictions on order quantity, parcel size, or shipment weight — every order ships at no cost to you. In addition, all customs duties, import taxes, and government-imposed fees associated with your shipment will be fully covered by us, ensuring you will not incur any extra charges upon delivery.
Please note that delivery times may vary due to local customs procedures and carrier conditions, but your shipping and customs costs will remain completely free under this policy.
We provide a secure and reliable Free Returns service for all customers. Items that remain unused and unopened may be returned within 60 days for a full refund.
All return shipping expenses, including customs-related fees, are fully covered by us.
Refund processing will be completed within 4 weeks from the date the return shipment is sent, regardless of whether the package has arrived at our facility. In general, refunds are finalized significantly earlier, ensuring a smooth and dependable experience.
Time to smash workouts and redefine gym excellence.
The new, enhanced C4 Original formula is your key to next-level performance hitting the gym HARDER than ever before. This powerhouse pre-workout blend, packed with 200mg of caffeine and 2g of CarnoSyn® Beta-Alanine*, guarantees sustained energy and endurance to help you power through even the toughest sets. The dynamic duo L-Citrulline and L-Arginine keeps your training sessions going longer and harder, as Creatine Nitrate fuels your performance for maximum gains. Plus, with AI-powered PeptiPump®, exclusive to C4 maximizing your performance, and Tyrosine and Huperzine A for improved focus, whether you're hitting it hard with Megasets or taking it easy with low-intensity training, the revamped C4 Original formula will keep you powered up so you can unleash your best self.
^Studies have shown benefits of CarnoSyn® Beta-Alanine to be correlated with cumulative use
Natural Alternatives International, Inc., is the owner of patents as listed on www.carnosyn.com and the registered trademark CarnoSyn®.
PeptiPump® is a registered trademark of Nuritas.
NO3‐T® is a registered trademark of ThermoLife International, LLC. This product practices one or more patents listed at www.NO3‐T.com/patents
Velox® is a registered trademark of KYOWA HAKKO BIO CO., LTD. and owner of U.S. Patents 8,609,735, 9,060,980, 9,622,998, and 10,052,298.
THIS PRODUCT IS ONLY INTENDED TO BE CONSUMED BY HEALTHY ADULTS, 18 YEARS OF AGE OR OLDER. Do not use this product if you are pregnant, nursing, or are currently taking nitrates for chest pain or if you are taking medication used to treat erectile dysfunction such as PDE-5 inhibitors.
Before using this product, consult a licensed, qualified, healthcare professional, including but not limited to, if: you are taking antidepressants such as MAOI (Monoamine Oxidase Inhibitor) or SSRI, blood thinners, nonsteroidal anti-inflammatory drugs, pseudoephedrine, or you are taking any other dietary supplement, prescription drug or over-the-counter medication; or if, you suspect you have or have been treated for, diagnosed with or have a family history of, any medical condition, including but not limited to: high or low blood pressure, diabetes, glaucoma, anxiety, cardiovascular, psychiatric or seizure disorders, cardiac arrhythmia, stroke, heart, liver, kidney or thyroid disease, or difficulty urinating due to prostate enlargement.
This product contains Caffeine and should not be used by individuals wishing to eliminate Caffeine from their diet or in combination with Caffeine or stimulants from other sources including but not limited to, coffee, tea, soda, or other dietary supplements and medications. Discontinue 2 weeks prior to surgery. Immediately discontinue use and contact a medical doctor if you experience any adverse reaction to this product. Do not exceed recommendations for Suggested Use. Use only as directed. Do not use if safety seal is broken or missing. Store in a cool dry place.
KEEP OUT OF REACH OF CHILDREN.
Mix 1 scoop with 6-8 oz. of water, consume 20-30 minutes before your workout, and feel the power surge through your body.Beginners may start with half a scoop to assess tolerance.
Make your gym sesh hit harder with 200mg of caffeine for explosive energy.
Conquer your toughest workouts with CarnoSyn® Beta-Alanine for endurance support.
PeptiPump® is an AI-powered designer peptide exclusively found in C4.
Stay sharp & focused, from the first rep to the last, with the power of Huperzine + Caffeine.
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Take 20% off your first order
Enter the code below at checkout to get 20% off your first order