Cellucor C4 Energy Shot acts as a quick pre workout energy boost that brings fast energy, sharp focus, and better stamina to power through tough sessions. Its main ingredients include caffeine for rapid energy and beta-alanine for endurance, with citrulline for blood flow and tyrosine plus huperzine A for focus. Cellucor is recognised as America’s number one pre workout brand, and the products are NSF Certified for Sport and produced in GMP-certified facilities for quality you can trust.

Available Sizes & Variants:

12 x 60ml energy shot - portable single-serve bottles you can grab on the go.

Benefits & Features:

• Explosive energy in seconds.
• Endurance support helps you push through tougher sets with sustained power, delivering steady energy so you can maintain pace from warm up to cool down.
• Citrulline boosts blood flow, aiding nutrient delivery to muscles during training.
• Tyrosine and huperzine A help maintain mental sharpness under stress.
• Portable energy shot goes straight to the point, fitting easily in bags.

Cellucor's C4 line has become a staple for athletes seeking reliable, clean energy. The brand is widely recognised as America’s #1 pre workout, with NSF Certified for Sport and GMP manufacturing that uphold strict quality controls. Transparency is part of the promise - you know exactly what you're getting. C4 Energy Shot sits within the c4 energy drink family, offering a compact, portable boost that's trusted by gym goers, students, and shift workers alike, without sacrificing taste or effectiveness.

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Please consult the product packaging for accurate instructions on how to use the product.

The Active Ingredient Is: Caffeine Anhydrous

Caffeine anhydrous is a quick acting stimulant that gives rapid energy and sharper alertness to back up workout performance.

This form is a fast-acting stimulant compound often used to boost focus and energy availability during activity.

What Does Caffeine Anhydrous Do?

Caffeine helps boost alertness and can support endurance and performance during exercise, aligning with EFSA guidance on energy and focus during activity.

Dr. Trexler of the University of Nebraska found that caffeine speeds up alertness and performance in athletic contexts.

*This product is not intended to diagnose, treat, cure, or prevent any disease.

Why Cellucor C4 Energy Shot ended up Welzo chosen, and what makes it stand out to us. Cellucor pushes the pre‑workout space with a steady reputation for innovation, reliability and honest labeling, which makes it a natural partner for Welzo. The brand’s proven heritage as America’s top pre‑workout is backed by a solid track record in making athlete‑friendly products and careful third‑party testing. This mix of market leadership and quality focus really resonated with our team. This brand was reviewed by Welzo's healthcare professionals for alignment with our quality certification process, making sure there’s a robust approach to safety and purity. Cellucor’s facilities are GMP‑certified and NSF Certified for Sport, highlighting solid third‑party validation that lines up with Welzo’s standards.

For this specific product, Cellucor delivers fast‑acting energy, mental focus and endurance support with carefully selected ingredients, positioning the brand as a natural fit for a handy pre‑workout shot. Welzo’s vetting process emphasises manufacturing excellence, third‑party validation and domestic market expertise, reinforcing our confidence in this partnership.