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In order to reduce the risk of COVID-19 transmission, we are currently operating with an absolute minimal amount of staff. This means it may take us longer than usual to process and dispatch your orders. Please allow up to 2 working days for your order to be dispatched. Thank you for your patience and support in helping us keep each other safe.
In order to reduce the risk of COVID-19 transmission, we are currently operating with an absolute minimal amount of staff. This means it may take us longer than usual to process and dispatch your orders. Please allow up to 2 working days for your order to be dispatched. Thank you for your patience and support in helping us keep each other safe.

Optimum Nutrition Serious Mass 2.7kg

Sold out
Original price £23.00
Current price £22.00
SKU 0748927028867
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ON's Serious Mass is the ultimate weight gain formula. If you find it difficult to gain weight, Serious Mass can help you develop the physique you've always wanted! Without adequate calories and quality protein, you simply can't get any bigger, without enough fuel and muscle-building nutrients like protein, you simply won't grow! Enter Serious Mass... What Does It Do? Each delicious shake delivers an incredible 1,250 calories, but no added sugar. This includes 50g of blended protein to support building muscle and 250g of carbs to fuel your workouts. That's serious calories, serious protein and serious carbs...that's Serious Mass!

UK Mainland

Packages (Samples Only)
Standard Delivery
2-4 Working Days
Order before 2pm£2.99

Standard Delivery - Deliver within 2-5 Working Days, Normally 3 Working Days

Parcel weigh between 0-2kg

Order before 2pm

£3.99

Parcel weigh between 2-10kg

Order before 2pm
£4.99

Parcel weigh between 10-20kg

Order before 2pm
£5.99

Expedited Delivery - Deliver within 1-3 Working Days, Normally 2 Working Days

Parcel weigh between 0-2kg

Order before 2pm£4.99

Parcel weigh between 2-10kg

Order before 2pm
£5.99

Parcel weigh between 10-20kg

Order before 2pm
£6.99

Northern Ireland

Standard Delivery - Deliver within 2-4 Working Days, Normally 3 Working Days

Parcel weigh between 0-2kg

Order before 2pm
£3.99

Parcel weigh between 2-10kg

Order before 2pm
£9.99

Parcel weigh between 10-20kg

Order before 2pm
£19.99


Republic of Ireland

Standard Delivery - Deliver within 2-4 Working Days, Normally 3 Working Days
Parcel weigh between 0-10kg
Order before 2pm
£10.99


Europe Delivery

Standard Delivery - Deliver within 2-4 Working Days, Normally 3 Working Days
Parcel weigh between 0-5kg
Order before 1pm
£10.99 TBC
Parcel weigh between 5-10kg
Order before 1pm
£13.99 TBC