This bundle pairs Serious Mass with a creatine monohydrate supplement, two powders suited to adults following a structured training programme and a calorie-surplus diet. Serious Mass is a high-calorie mass gainer powder designed to complement whole-food intake for those with higher energy requirements. Creatine monohydrate is one of the most researched ingredients in sports nutrition and a common daily addition to strength and conditioning routines. Both products come in powder form and are available in a range of flavours.