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Optimum Gold Standard Pre Workout is ON's latest premium pre workout supplement. Containing research proven ingredients at effective doses, such as creatine, beta-alanine, and caffeine, together with the latest in pre workout supplementation, Gold Standard Pre Workout will assist to energise your efforts.
If you would rather read our review for C4 as well as the C4 submodels Ripped and BULK, look here â Cellucor C4 Review: Ripped and Bulk. When to take C4. Cellucor C4 like 99.9% of other pre workout supplements should be taken approximately 30 minutes before exercise.This is enough time for the majority of ingredients to begin saturating your muscle tissue.ow to take Cellucor C4 Pre Workout. See exactly when and how to take Cellucor C4 pre workout to get the best results possible. C4 is one of the most popular pre workouts available, experience what everyone else is talking about.