Caffeine Capsules with Anti-Doping Certification and Suitable for Vegans. Pure Anhydrous Caffeine. With 100 mg of caffeine per capsule. Allergen-free and suitable for vegans. Improves performance. Caffeine PRO Caps are vegetable capsules of the highest quality pure anhydrous caffeine. They are ideal for boosting and improving the performance of both your training and competitions. Caffeine has proven to be one of the best and most effective ergogenic aids (direct performance enhancer) in all types of sports disciplines, whether strength, endurance, or mixed