Optimum Nutrition

Optimum Nutrition 100% Casein Protein




Gold Standard Casein uses the very best form of milk protein, micellar casein, to deliver a slow infusion of protein to the body which ensures muscles are fed over extended periods of time thus limiting muscles being broken down by the body for energy. This makes Gold Standard Casein is a perfect protein if used at night or if dieting due to its ability to keep you satiated.


Up to 2kg - £2.99

Above 2kg - £3.99

Orders over £40 - Free UK Delivery

Rest Of World - £9.95


We offer 30-day hassle free returns. Simply send your item(s) back within 30 days from the date of purchase in the original packaging with the seal unbroken for a refund. T&C's apply.