Cellucor C4 Ultimate is a pre workout that is suitable for both men and women who are wanting that extra kick for the gym – it is definitely not for the weak. It is a great tasting pre workout, which has the ingredients to match. The ingredients selected have all been chosen for a reason – to benefit you as the user. This is the ultimate blend. Nootropics, mood enhancers, pump amplifiers and endurance boosters. All from ingredients like, Caffeine, Vitamin C, Beta Alanine, Arginine and Vitamin B6 and B12.