Verified reviews

Great product selection and prices

Good quality products that are easy on…

Order was promptly shipped and exactly…
Jeff C




As a way of saying thank you to all Key Workers we are offering an extra 10% off all products. Click here to sign-up and receive your extra 10% off discount code.



Delivery Update: We are currently operating with a normal delivery service with both standard and next-day delivery. If you do experience any problems with your order please do not hesitate and get in contact with our customer care team (contact details below).


**Please Note** Whilst UK deliveries are operating as normal there may be some slight delays for deliveries to the EU.

We want to assure you that Science in Sport you can still expect world-class nutrition with a 5-star service. COVID-19 is affecting everyone around the world and as a global business we are following advice and making decisions as we gain new facts. We are an ISO 9001 and LGC accredited manufacturing site, so have the highest standard of food safety and quality at the core of our business. On top of the standard procedures that we operate on a day to day basis, we have also:

Increased our cleaning routines throughout our manufacturing, fulfilment and office facilities.

Given additional training to all employees on good hygiene practice and have placed additional hand sanitiser stations throughout the whole of the business.

Adherence to the government guidelines on self-isolation and supporting our staff through this period.

Self-assessment of colleagues prior to entering the manufacturing and fulfilment sites.

Been risk assessed (at our premises) and we are compliant with government guidelines.

For any orders, we would like to advise customers that a residential address is preferable for deliveries as businesses may have to close going forward (dependent on Government advice). Our customer service team remain open to support you with any queries. Please use this help page. Hard work and preparation doesn’t have to be wasted, only re-channelled to greater goals.If you’re training indoors, check out our Athlete Advice to see training tips and nutrition. Stay safe and well, from all of us here at Science in Sport.


How much does delivery cost?
The cost of deliveries varies by location & method. Our standard UK delivery fee is £3.99, but all orders over £35 qualify for free standard delivery. SiS Premier offers unlimited next day delivery for a whole year for just £9.99! For full details, please see our deliveries page.
What is SiS Premier?
SiS Premier is a premium service that offers unlimited next day delivery and a number of other benefits - all just £9.99 for a whole year. For full details, see our Premier page.
How long does delivery take?
Standard UK deliveries usually take 3-5 days, but we do our best to get your package to you as soon as possible. There is also next day delivery available for UK customers.
Can I change my order details after it has been placed?
Unfortunately, as we work so quickly to send out your order it is very difficult for us to change details after an order has been placed. If you contact us within 15 minutes of placing your order we can usually make any changes required. After this point, we can't promise we will be able to, but don't hesitate to contact our support team using the details below who will do all they can to help you.
Can I use more than one discount code on a single order?
Only 1 discount code can be used per order. If more than 1 code is applied the the code offering the larger discount will usually take priority but it is the responsibility of the customer to ensure the correct code is used.
Can I use my discount code on products that are on special offer?
Discount codes do not apply to products that are on special offer. Where a basket contains a mixture of full-priced products and those on special offer, the discount will only apply to the full-priced products. All products deemed to be on Special Offer can be identified by looking at the 'Special Offers' section of the website which can be located in the main menu.
How do I return my order?
If you would like to return your order you can send it back to us, within 14 days of you receiving the goods. The goods must be unopened and in the same condition they were received in - any items returned in conditions that do not meet this criteria will not be refunded and will not be sent back to you. To return the goods, first contact our friendly customer service team via email at to arrange the return. Unfortunately we are not able to cover the cost of return postage. For full information on our returns policy, please see our deliveries & returns page.
Which couriers do you use?
We use a variety of couriers, primarily Hermes & UPS. It is not possible to select which courier your order is dispatched with.
Will I get a dispatch email when my order is dispatched?
After you have placed your order you will receive an order confirmation email immediately. When our couriers pick up your order, you will receive a dispatch notice email. Depending on the courier used, you may receive further updates from this point.


Monday – Friday: 8:00am - 8:00pm.