For over a decade, the C4 family has led the category and Ultimate is our strongest pre-workout yet. C4 Ultimate is a highly stimulant-based pre-workout formulated to deliver long-lasting energy, pumps, and muscle endurance. Our dual-source caffeine technology supports increased potency and power output to help take your results to the next level. C4 Ultimate delivers energy you can feel, powerful pumps, muscle endurance, extreme focus, and peak performance. All it takes is one scoop and you can feel the difference.

As our clean, clear, evolved pre-workout powerhouse, C4® Ultimate is free of artificial flavors and colors, made with a fully disclosed formula, and enhanced with cutting-edge performance ingredients like NitraMax (NO3-C)™ Citrulline Nitrate and a double dose of stimulating nitrates.*

• MAXIMUM ENERGY: Kickstart your ultimate workout with 300mg of caffeine.
• MAXIMUM MUSCLE ENDURANCE — Strengthen your muscles through CarnoSyn® Beta-Alanine, which helps fight muscle fatigue and improves muscle endurance.*

*Studies have shown that the benefits of CarnoSyn(R) beta-alanine correlate with cumulative use.

• CLEAN — No artificial colors. No artificial flavors.
• MAXIMUM PUMP + PERFORMANCE - All-natural dual citrulline and creatines deliver maximum pump and performance.