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Product Code

WHEY20 Mixed - 4 Pack (Strawberry & Lemon)



Product Code
  • New and Improved flavours!
  • 20g of quality dairy protein on the go.
  • Ready to go in your kitbag; no shaker or water needed.
  • A low carb & low fat protein snack that tastes like a flavoured yogurt.
  • 6g of BCAAs per serving to support the growth & maintenance of lean muscle mass.
  • To learn more about what makes WHEY20 so special, read our FAQ's.
  • Award Winner! 2016 Men's Running Award for Best Healthy Snack & Protein Based product
Delivery Details

UK Delivery Information*

  • Free Standard Delivery over £35 (2-4 Days)
  • Standard UK Delivery (2-4 Days) - £3.99
  • UK Next Day Delivery (Restrictions Apply) - £4.99
  • SiS Premier - Unlimited Next Day Delivery for 1 Year - £9.99
Full Details & International Delivery


Product Information

SiS WHEY20 is the latest addition to the SiS Protein range, offering high quality whey protein hydrolysate in a ground-breaking format.

The yogurt-like texture tastes great and removes the need for a shaker and water for your post-training protein or a high protein snack on the go.

The product contains 20g of dairy protein, which gives a high level of BCAAs at 6g per serving. With only 1.8g of carbohydrate, 0.1g of fat and a total of 88 calories in each serving, the product lets you focus on quality protein intake with no unwanted calories or added sugar.

Product Uses
Recommended Usage

WHEY20 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 has one of the fastest-known protein digestion rates, and has a high BCAA content. BCAAs make up 35% of lean muscle mass; therefore they are an essential element to include in maintaining a healthy body composition and supporting the growth and maintenance of lean muscle mass.

Completely unique within the market, the innovative delivery system is yogurt-like but doesn't require refridgeration, making it ideal to consume on the go.

Informed Sport Registered: Our complete product range is developed using a world-class approach to banned substance testing, providing assurance for athletes. For more information on Informed Sport & our unique world class approach, click here.

Nutritional Info

For nutritional information about the individual products within this pack, please see the relevant product page for each product. Example below is for Lemon flavour.

Typical ValuesPer 100gPer serving 78ml
Energy 478kj/114kcal 368kj/88kcal
Protein 26g 20g
Carbohydrate 2.3g 1.8g
 of which sugars 1.8g  1.4g
Fat  0.1g 0.1g
 of which saturates 0.0g 0.0g
Salt 0.1g 0.0g


Water, Whey Protein Hydrolysate (Milk - 20%), Quark (Milk), Natural flavouring, Acidity Regulator (Citric Acid), Stabiliser (Pectin), Sweeteners (Sucralose, Acesulfame K), Preservative (Potassium Sorbate).

Read More

How do I eat it?

Just tear off the top and it's ready to consume. The product flows easily so it effortlessly squeezes out of the packet. Water isn't essential but if you're having it after training it's important to drink as well so that you stay hydrated.


When should I have it?

SiS WHEY20 is really convenient so you can add it into your diet for a serving of quality protein whenever you need it. If you've been training, having it within 30 minutes of finishing your session maximizes the benefit of your raised metabolism post-exercise.


Is it the same as your whey protein powder but in a different format?

It offers the same protein benefits as whey protein but just removes the need for a shaker and water. It has a slightly lower calorie count per serving than most protein shakes too.


What's the difference between this and REGO?

SiS WHEY20 should be used within 30 minutes of shorter training sessions, particularly strength and conditioning to promote rebuild, where carbohydrate replenishment is not necessary. REGO should be used after longer sessions where carbohydrate replenishment is required as well.


What does it taste like?

SiS WHEY20 is a dairy-based protein gel, so it tastes like a refreshing lemon or strawberry yogurt.


Does that mean it needs to be kept in the fridge?

No it doesn't need to be refrigerated. The protein gel is UHT treated so it can be stored at room temperature and thrown into your kitbag so it's ready to go whenever you need it.


It tastes great! Surely that means it must be full of sugar or fat?

Absolutely not. Each gel contains only 1.8g of carbohydrate, this isn't added sugar but just comes from the small amount of lactose that remains from the milk origins of the product. Nearly all fat has been removed too to leave just 0.1g per gel. With 20g of high quality protein this gives you a total of only 88 calories per gel.


Is it suitable for everyone?

All whey proteins come from milk so unfortunately if you are lactose intolerant then this product won't be suitable for you. It is wheat and gluten free and is suitable for vegetarians.


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Verified Reviews

Rated 4.7 out of 5 based on 20 Reviews

Love the different flavours. Very easy to place and keep never taking more space than you want. Very convenient aswell as tasty and good for you body protein intake.

Dr Simon Portman-lewis

Might be good for you but the taste and texture is wierd

Brian Berry

Easy to use and easy to pack in your bag when out and about

Miroslav Vokáč

It was for the first time to use Whey item. I think to be more helpfull to increase strength and I feel very well to use it and more healthy.


for me, a bit "cheesy" but more digerible than other proteic product

James Metcalfe

Great product, superbly convenient format.

Antonio Gesmundo

Better than protein bars, but i preferì protein drinks

Susan Yates

Need more variety of flavours ... Prefer strawberry but Lemon makes a close second favourite


These are fantastic...just before cycling or handy to take with you and the flavours are nice..

Sara Cox

Easy to take with me travelling

richard hughes

now essential in my post ride recovery

Susie Boyle

Good way to get protein in...

Stuart Jackson

Where have you been all my life

Michael Fletcher

Take one every hour as suggested by sis and found they help immensely.never go out without them now.

Mrs J Parker

I used one of these post a long hard cycle ride and it was perfect. Easy to use, easy to digest and it tasted great - will definitely be purchasing more of these - highly recommended

Bob Ramsay

I really like these for getting that after training, immediate intake of protein. The flavours are lovely and not at all sickly, in fact it tastes like a good quality, thick yoghurt.

Phil shadwell

I have started to use these following my HIIT sessions and running. They provide a quick protein boost which is more convienient than mixing a shaker of powder. The lemon isn't the greatest taste and is a bit on the sour side but I love the strawberry flavour. I will keep using these as part of my exercise routine. Hopefully some new flavours to come in the future.

Cathy Robertson

Surprisingly good taste and texture, and ultimate convenience.

Jane Varik

I like the most strawberry flavour whey20. Its easy to use and very comfortable.

Marcus Bolleurs

Love the Whey 20 Gels!!! Taste great and so convenient to use when i run distance and cycle for extended periods of time to ensure i don't shed too much lean muscle!