Science In Sport Whey Protein 1KG

MSP  £ 37.49    SAVE 33%
YOUR PRICE: £ 24.99
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Containing a blend of whey protein isolate and concentrate, the Science in Sport Whey Protein 1KG tub is formulated for rapid and easy digestion and the support of lean muscle growth and maintenance.

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With four great flavours to choose from and 22 grams of protein per serving you can enhance the result of your training in no time.

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Science in Sport Whey Protein 1KG

Science in Sport's Whey Protein 1KG tub provides just what you need to make the most out of your training with a combination of isolate and concentrate proteins that are easily digested with an amino acid profile that supports lean muscle growth.

Protein forms an essential part of any athletes training regime as it is necessary for muscle repair and growth. For individuals that exercise regularly and want to promote a low body fat percentage, around 1.4 to 1.6 grams of protein per kilo of body mass is recommended. For a 75 kilogram male who trains regularly that would equate to 120 grams of protein per day.

SiS Whey Protein can be used throughout the day with or between meals (such as at breakfast or mid-morning and mid-afternoon snacks) to provide a convenient way to increase daily protein intake. After training consume one serving within 30 minutes of finishing your session for maximum benefit.

  • Whey protein isolate & concentrate blend
  • Contributes to lean muscle mass growth & maintenance
  • Fuelling gold medal winners since 1992
  • Wheat & Gluten Free
  • Informed Sport tested
  • Each serving contains 22-23g of protein

UK Delivery Options


Free Delivery on all orders over £30

Estimated delivery within 4 working days (a delivery charge of £1.99 for orders under £30.00 will apply)

CollectPlus Delivery

Have your order delivered to your local shop for just £1.99! For Highlands and Islands, please allow up to 5 working days. Orders can be shipped to UK CollectPlus locations specified on the website where they will be held awaiting collection for a period of 10 days.

Orders placed are normally dispatched within 2 working days.

Priority 1st Class Delivery - £2.99

Estimated delivery within 2 working days.

Next Working Day Delivery* - £4.99

A guaranteed tracked courier delivery, place your order before 3pm, deliveries are made Monday to Friday.

Saturday pre 12 Delivery - £4.99

Saturday delivery orders must be placed by 1pm Friday and is only available on items in stock in our warehouse. Orders are prioritised through our warehouse and are delivered on Saturday pre 12pm by courier. Package must be signed for upon delivery.

Sunday pre 12 Delivery - £4.99

Sunday delivery orders must be placed by 1pm Friday and is only available on items in stock in our warehouse. Orders are prioritised through our warehouse and are delivered on Sunday pre 12pm by courier. Package must be signed for upon delivery.

Reserve and Collect** - FREE

Reserve & Collect is available on all items marked 'Collection'. It is a FREE delivery option that allows you to collect your order from either our Sigma Sport Store Hampton Wick or our Reserve & Collect location in Esher. Just select the Reserve & Collect button in the basket.

** Reserve and Collect Collections - Clothing, parts and accessories: Next day. Orders placed on Friday, Saturday or Sunday will be available for collection after midday on the Monday (excluding Bank Holidays). Bikes: 4 days if in stock at store, collect in up to 7 days (sometimes quicker) if in stock at warehouse.

* Next Working Day delivery is only available on items in stock in our warehouse and excludes pre- order items. Next Day refers to the next working day, Bank Holidays will add an extra working day to the estimated delivery lead times. UK next day excludes Saturday deliveries. This service is not available to some remote postcode areas. Please contact us for help.

London Same Day (Order Before 1pm)


We offer a Same Day delivery service into London. The cost is £25.00 under 2Kg and £35 over 2Kg. Place your order before 1pm, deliveries are made Monday to Friday. Please note this option excludes bicycles.

More information on our Same Day delivery options.

Bike Deliveries


All our bikes are fully checked and tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for despatch. All you have to do is add the pedals, rotate and tighten the handlebars. Typically we can deliver your bike in 4 - 5 working days.

Deliveries are made Monday to Friday on a pre-12pm delivery. One of our customer service team will be in contact to arrange a convenient day for delivery.

More information on all our UK delivery options.

International Delivery


Sigma Sport delivers to over 100 countries. To see what delivery options are available for your destination, simply select your country on the checkout page. Goods are shipped from the UK. Does not include local taxes or import duties, if applicable.

More information on our International delivery options.

Free Returns


We offer a free returns service for our UK customers. Sigma Sport will happily refund or exchange any item purchased at Sigma Sport, excluding Sigma Sport gift vouchers and personalised products except when faulty.

More information on the Sigma Sport returns procedure.

Stock Alert

Please alert me via email when this product is back in stock.