Optimum Nutrition Serious Mass 5.45kg Cookies & Cream

Please refer to the product packaging or official Optimum Nutrition product information for a complete and accurate ingredients list, including allergen information and nutritional content per serving.

Mix one serving (334g) with 473-710ml of cold water, milk, or your preferred beverage. Blend until smooth and consume immediately. For best results, consume within 30-60 minutes post-workout. Can be used as a meal replacement or high-calorie supplement between meals.

Optimum Nutrition Serious Mass is a premium weight gainer supplement in Cookies & Cream flavour. This 5.45kg container provides multiple servings of a comprehensive formula designed to support muscle building and recovery during intense training programmes.