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Product Code

SiS Immune Tablets Orange - 20 Tablets


Product Code

Designed to support & maintain immune function during and after exercise

Low‐calorie rehydration drink with vitamin C and Iron


Product Information

About SiS Immune

SiS Immune is designed to support and maintain immune function during and after exercise.

As an effervescent tablet that readily dissolves in plain water, it represents a highly practical approach to support your immune system after exercise.

Vitamin C (200mg) and Iron (2.5mg) are known to contribute to the maintenance of the normal function of the immune system during and after intense physical exercise in addition to your RDA.

Key Features:

  • • 200mg of Vitamin C
  • • 2.5mg of Iron
  • • Sodium to help promote hydration
  • • Contents: 20 x 4.3g Tablets

Product Uses
Recommended Usage

Consume up to 1 tablet per day in addition to a balanced diet and a healthy lifestyle. Add one Immune tablet to 500ml of water and let it dissolve. Once prepared consume within 24 hours.


Benefits of SiS Immune

Heavy training is known to impact the immune system, suppressing it for 3‐72 hours post-training. This can lead to a higher incidence of upper respiratory tract Infections, impacting an athletes health and their ability to train.

Excessive vitamin intake can suppress the training response. SiS Immune is designed to be at a level which supports athlete health without compromising training benefits.

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.

Suitable For: Vegans, Vegetarians, Lactose free, Gluten Free, Wheat Free, Nut Free, Soya Free

Nutritional Info
Typical ValuesPer 100gPer Tablet 4.3g
of which saturates0.0g0.0g
of which sugars0.6g0.1g
Vitamin C200mg (250% NRV)
Iron2.5mg (18% NRV)

NRV** Nutrient Reference Value

Salt* Total Sodium content x 2.5. Salt as NaCl is nil per tablet.



Citiric Acid, Acidity Regulator (Sodium Hydrogen Carbonate, Sodium Carbonate), Sorbitol, Vitamin C (4.95%), Inulin, Natural Flavout, Starch, Tricalcium Phosphate, Sweetener (Sucralose), Maltodextrin, Natural Colour, Iron Sulphate (0.18%), Vitamin B2 (Riboflavin).

Read More

Why should I take this?


Vitamin C and Iron are known to contribute to the maintenance of the normal function of the immune system during and after intense physical exercise.


How is this different to other Vitamin C tabs?


SiS Immune contains 200mg of vitamin C and 2.5mg of Iron, which along with a normal diet provides the correct amount to support immune function post-­?exercise. This is preferred over tabs containing well over the RDA of antioxidant vitamins, which can suppress your response to training.


Wouldn’t I be better off taking a multi-­?vitamin?


SiS Immune also contains key electrolytes, which can aid hydration after exercise as well as providing what the body needs to support immune function. A multi-­?vitamin cannot do this, and may contain elements that your body doesn’t need if you are not deficient in them.


Does this make a fizzy drink?


When you drop the immune tab in the water, it will fizz until fully dissolved. After this you are left with a still drink.


Do they taste salty?


No, they are available in orange flavour and have a light taste.


What is the difference between this and SiS GO Hydro?


SiS Immune should be taken post exercise to support and maintain immune function while rehydrating. SiS GO Hydro should be taken during exercise to maintain hydration only, when energy is not needed.


Can I mix this with GO Electrolyte or GO Hydro to get all the benefits?


No, this would provide too much sodium, beyond the optimum levels.

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Verified Reviews

Rated 5 out of 5 based on 20 Reviews
M Humphreys

Better quality that I get from the normal tabs have used before so clear when it dissolves

James Howard

clean fresh taste


Palatable and easy dissolved

Paul Hollis

Great product nice flavour

Mrs janice bickerstaff

I am a regular buyer of this product. Mixes easily and has a pleasant taste.

andy smithurst

Nice taste for everyday drink

Matthew Conrad-Jones

Lovely taste and seem to work well!


Other than the funny colour (looks like a sample!) this product is great. Tastes nice and is good value.

Ben Hewitt

Very tasty, good value!

Nick Maingay

Great drink

Max Willcocks

Favourite SiS product. Have this daily

Andrew P

I have absolutely no proof that my general good health and well being is down to these but, since I have started taking them regularly have not succumbed to the usual winter colds etc and have felt one hell of a lot healthier. Which has kept me on my bike more. Which has kept me fitter. Which has kept me healthier.



stefano Baldoni

I use it with SiS GO Hydro to have more vitamin C

Janet Clarke

excellent value pleasant taste .

John Disney

Steady supply of good products.


Good taste And does the trick during colder months

Linda Dewhurst

Really effective hydration with Vit C too... great combo.

Marie Grantham

Refreshing and keep me hydrated


Great product, does what they say on the tin