Grind By Primabolics GRIND is the most comprehensive, stand alone, muscle pump catalyst on the market today! It is not merely a pump additive. It is not just a product for night trainers and shift workers and those who don’t like caffeine. This is PERFORMANCE FUEL for serious athletes only! GRIND is perfect for those who can either enjoy the benefits of a stim free product by itself or stack with their favourite products of choice for training to take their training to the next level! So let’s have a look at what makes GRIND so special! With a whopping 20 gram serving size, GRIND combines industry leading innovation in Vasodialation, combined with premium quality active ingredients to promote endurance, power out put and buffer lactic acid!