Weight gainers are high calorie, protein and carbohydrate shakes. They provide a significantly higher quantity of carbohydrates per serving than a regular whey protein shake. If increasing you calorie intake to increase mass is your goal, then these products are for you. Each serving provide a decent amount of protein combined with a large amount of carbs to easily increase calorie intake without the feeling of over eating. Here at CSN we stock a range of drug tested weight gainer supplements, that are completely banned substance free, to help you reach your goals without jeopardising your tested status.