SIS

SIS Main Banner

View as Grid List
Sort by

SIS Go Gel - 30 Pack

SIS Go Gel - 30 Pack
£51.00 £30.60 VAT exempt

SIS Go Gel + Electrolytes - 30 Pack

SIS Go Gel + Electrolytes - 30 Pack
£54.00 £32.40 VAT exempt

SIS GO Gel + Caffeine - 30 Pack

SIS GO Gel + Caffeine - 30 Pack
£64.50 £38.70 VAT exempt

NEW: SIS Go Gel Variety Pack - 20 Pack

Contents: 4 x each flavour GO Isotonic Energy Gels (Orange, Tropical, Blackcurrant, Lemon & Lime, Apple) The GO Isotonic Gel is the world's first isotonic gel effectively delivering an easily digestible and quick supply of carbohydrate for energy during exercise. GO Isotonic Gels are designed to be consumed without water meaning that you can ensure rapid delivery of carbohydrate to your muscles
£33.00 £19.80 VAT exempt

SIS Go Gel Variety Pack - 7 Pack

NEW PRICE 1ST MARCH
SIS Go Gel Variety Pack - 7 Pack
£8.99 £5.66 VAT exempt

SIS Beta Fuel Gels - 30 pack

SIS Beta Fuel Gels - 30 pack
£60.00 £36.00 VAT exempt

SIS Beta Fuel + Nootropics Gels - 30 pack

SIS Beta Fuel + Nootropics Gels - 30 pack
£66.00 £39.60 VAT exempt

NEW: SIS Beta Fuel + Electrolyte Gels - 30 pack

A dual-source energy gel with added electrolytes for endurance For athletes engaging in prolonged moderate to high-intensity exercise, >2 h in duration, to simultaneously deliver both carbohydrate and key electrolytes for when you need it most.
£69.00 £41.40 VAT exempt

SIS GO Hydro Electrolyte Drink - 20 Tablet Tube (8 Pack)

SIS GO Hydro 20 Tablet Tube (8 Pack)
£53.33 £33.20 excl VAT

SIS Hydro+ Electrolyte Drink Mix - ( 20 x 4.5g Stick Box)

A convenient electrolyte drink mix designed for optimal hydration.
£25.00 £15.00 excl VAT

SIS Hydro+ Electrolyte Drink Mix - ( 6 x 4.5g Stick Box)

A convenient electrolyte drink mix designed for optimal hydration.
£6.67 £4.00 excl VAT

SIS IMMUNE Multi Vitamin Drink - 20 Tablet Tube (8 Pack)

SiS Immune is designed to support and maintain immune function during and after exercise.
£53.33 £33.20 excl VAT

SIS Energy Oat Bar (12 x 70g)

Whether you're powering through a morning run, prepping for an afternoon workout, or recovering post-game, the Energy Oat Bar is the delicious snack to support your performance.
£25.00 £16.10 excl VAT

SIS Mini Go Bar - Box (30 x 40g Bars)

NEW PRICE 1ST MARCH 2023
SIS Mini Go Bar - Box (30 bars) 40g Bars including 26g Carbs and 139 calories.
£42.00 £25.30 VAT exempt

SIS GO Energy Bake Bar (12 X 50g)

NEW PRICE 1ST MARCH 2023
SIS Go Energy Bake Bar (12 X 50g) - 30 g carbohydrate - 10 g fructose - 2:1 carbohydrate ratio - Soft filled bake - Fruit centre - Fuelling before or during exercise - Energy loading snack between meals - Informed Sport tested
£24.00 £14.45 VAT exempt

SIS Protein20 Vegan Bar (12 x 64g Bars)

NEW PRICE 1ST MARCH 2023
Key Features: • Low sugar, high protein bar • 20 g of protein per bar • 2 g of sugar per bar • Supports recovery, muscle rebuild and daily protein intake • Post-exercise • Day-to-day snacking • Vegan
£29.00 £18.06 excl VAT

SIS Beta Fuel 80 Energy Drink - Box (15 Sachets)

NEW PRICE 1ST MARCH 2023
SIS Beta Fuel 80 Energy Drink - Box (15 Sachets)
£37.50 £21.54 excl VAT

SIS Beta Fuel Energy Chews - Box (20 Packs)

Our Beta Fuel Dual Source Energy Chews deliver scientifically superior fuel in unique and satisfying chews. They are super easy to consume and deliver 46 grams of carbohydrate to improve and maintain optimum performance.
£41.67 £25.00 excl VAT

SIS Beta Fuel Energy Chews - Box (6 Packs)

Our Beta Fuel Dual Source Energy Chews deliver scientifically superior fuel in unique and satisfying chews. They are super easy to consume and deliver 46 grams of carbohydrate to improve and maintain optimum performance.
£12.50 £7.50 excl VAT

SIS GO Energy Drink - 1.6kg

NEW PRICE 1ST MARCH 2023
SIS GO Energy Drink - 1.6kg
£30.00 £18.00 excl VAT

SIS Go Electrolyte Drink - 500g

NEW PRICE 1ST MARCH 2023
SIS Go Electrolyte - 500g
£13.33 £8.00 excl VAT

SIS Go Electrolyte Drink - 1.6kg

NEW PRICE 1ST MARCH 2023
SIS Go Electrolyte - 1.6kg
£30.00 £18.00 excl VAT

SIS Rego Recovery Drink - 18 Pack

NEW PRICE 1ST MARCH 2023
SIS Rego Recovery Drink - 18 Pack
£37.50 £23.68 excl VAT

SIS BETA Recovery Drink - 500g

SIS BETA Recovery Drink - 500g BETA Recovery Dual Source Recovery Drink. Advanced carbohydrate & protein blend, scientifically formulated to support recovery after endurance exercise.
£16.67 £10.00 excl VAT

SIS Rego Rapid Recovery Drink - 500g

NEW PRICE 1ST MARCH 2023
SIS Rego Recovery Drink - 500g
£16.67 £10.00 excl VAT

SIS BETA Recovery Drink - 1.5kg

SIS Rego Recovery Drink - 1.5kg BETA Recovery Dual Source Recovery Drink. Advanced carbohydrate & protein blend, scientifically formulated to support recovery after endurance exercise.
£41.67 £25.00 excl VAT

SIS Rego Rapid Recovery Drink - 1.5kg

SIS Rego Recovery Drink - 1.5kg
£41.67 £25.00 excl VAT

NEW: SIS Rego Whey - 450g

SIS Rego Whey - 450g
£20.83 £13.54 excl VAT

NEW: SIS Rego Whey - 1.35kg

SIS Rego Whey - 1.35kg
£50.00 £32.50 excl VAT

NEW SIS Rego Clear - 46g Sample Sachet (one of each flavour per customer)

SIS Rego Clear - 46g
£0.00 excl VAT

NEW: SIS Rego Clear - 460g

SIS Rego Clear - 460g
£20.83 £13.54 excl VAT

NEW: SIS Rego Clear - 1.38kg

SIS Rego Clear - 1.38kg
£50.00 £32.50 excl VAT

SIS Rego Cherry Juice (30 x 30ml)

Montmorency cherries are a specific variety of sour cherry, which gives the natural tart flavour. Cherry juice research is linked to improved recovery, reductions in delayed onset muscle soreness, reduced inflammation and improved sleep. Training and competition places considerable stress on the body, and scenarios exist where a goal of accelerated recovery is more important than physiological adaptation. At these times, individuals may be required to perform multiple training sessions or competitive events within or on consecutive days, and recovery protocols are key in maintaining optimal performance. Key Features: • 100% Montmorency cherry • Naturally rich in anthocyanins, flavonoids and melatonin • Supports recovery, reduces inflammation and aids sleep • Informed Sport tested
£50.00 £33.00 excl VAT

SIS Rest Plus Juice - 10 Pack

REST PLUS JUICE BERRY 10 x 55ML
£16.00 £13.33 excl VAT

SIS Creatine 400g / 72 Serving Tub

Creatine is the latest addition to the range, offering a convenient way to help increase physical performance. Add the unflavored variety to an whey protein shake or Rapid Recovery or enjoy the flavored creatine with water. Creatine uptake to muscle is enhanced by insulin and muscle contraction so we should be saying consume with food and in the post-exercise period in combination with our key recovery products.
£24.99 £18.74 excl VAT

SIS GO Caffeine Shot Cola - 12 pack

SIS GO Caffeine Shot The new Caffeine Shot is perfect for use before or during exercise and is designed to help you maintain focus and concentration while reducing tiredness and fatigue. Whether it's before you hit the gym, to help you through those last few miles or to give you a half-time boost, the SiS GO Caffeine Shot will help improve your endurance and give you the edge over the competition. Each shot is 60ml and contains 150mg of caffeine alongside a mixture of vitamins & minerals all perfectly formulated to boost your endurance. Available in Cola and Tropical flavours.
£20.00 £13.00 excl VAT

REGO Collagen Shot Apple - 12 Pack

Supports bone, muscle and soft-tissue health
£24.00 £16.80 excl VAT

SIS 2.2 Litre Water Jug: OUT OF STOCK

Made with tough BPA-free plastic, our SiS 2.2L Water Jug is a water bottle with a large capacity for easy hydration on-the-go that provides a great alternative to single-use plastic bottles so you can do your bit for the planet.
£8.33 £5.41 excl VAT

SIS Drinks Bottle - 800ml Clear

NEW PRICE 1ST MARCH 2023
SIS Drinks Bottle - 800ml Clear
£5.00 £2.75 excl VAT

SIS Drinks Bottle Wide Mouth - 600ml

NEW PRICE 1ST MARCH 2023
SIS Drinks Bottle Wide Mouth - 600ml
£4.17 £2.19 excl VAT

SIS Drinks Bottle - 800ml Yellow

NEW PRICE 1ST MARCH 2023
SIS Drinks Bottle - 800ml Yellow
£5.00 £2.75 excl VAT

SiS Double Walled Stainless Steel Shaker - 750ml

Robust and durable, our stylish SiS Double Wall Stainless Steel Shaker is an insulated sports bottle with multiple features and has a large 750ml capacity designed for the easy mixing, transporting and drinking of SiS powdered drinks supplements.
£8.33 £7.30 excl VAT

SiS Shaker Drinks Bottle - 700ml

CLICK BELOW FOR SIMILAR APPLIED NUTRITION SHAKER AT SAME PRICE. The Science in Sport shaker features the unique Easy Mix System. This has been designed to deliver fast and accurate mixing. The Easy Mix System enables you to pour specific amounts of Science in Sport powder directly into the shaker by using the pre-determined marks printed on the outside of the shaker.
£5.83 £3.50 excl VAT

SiS Team Ineos Fly Bottle 500ml

SiS Team Ineos High Quality 500ml Fly bottle. Super lightweight and easy to use.
£6.66 £3.66 excl VAT