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Boost your energy, hydration & recovery with Science in Sport's scientifically formulated products. For world-class endurance sport nutrition. SiS offers an extensive range of endurance nutrition products to fuel your workout and on race day.
Beta Fuel 60ml + Nootropics Gel - Single Unit (Apple)
New Hot
Brand: SiS (Science in Sport) Model: BETA-GEL-60-AP
PRODUCT INFORMATIONEVIDENCE-BASED ENERGY GEL FOR PHYSICAL AND MENTAL POWER OUTPUTDESIGNED AS A WORLD-LEADING, WHOLE-BODY ENERGY SOURCE, OUR INNOVATI..
R70.00
Brand: SiS (Science in Sport) Model: REGO-RR-1600-BA
REGO Rapid Recovery is a complete recovery product to be consumed immediately after exercise. It contains a blend of carbohydrates (23g), protein (2..
R1,085.00
Brand: SiS (Science in Sport) Model: GO-GEL-60-BC
The SIS GO Isotonic Energy Gel was the world's first isotonic gel effectively delivering an easily digestible and quick supply of carbohydrates for en..
R40.00
Brand: SiS (Science in Sport) Model: GO-EL-1600-BC
 SIS GO Electrolyte contains a blend of an easily digestible and quick supply of carbohydrates as well as electrolytes (such as sodium) that pr..
R945.00
Brand: SiS (Science in Sport) Model: GO-GEL+ELE-60-RA
The GO Energy + Electrolyte gel builds on the established science of the GO Isotonic Energy gel, the world’s first and only truly isotonic energy ge..
R53.00
Brand: SiS (Science in Sport) Model: GO-GEL-60-TR
The SIS GO Isotonic Energy Gel was the world's first isotonic gel effectively delivering an easily digestible and quick supply of carbohydrates for ..
R40.00
Brand: SiS (Science in Sport) Model: REGO-RR-500-ST
REGO Rapid Recovery is a complete recovery product to be consumed immediately after exercise. It contains a blend of carbohydrates (23g), protein (2..
R425.00
Brand: SiS (Science in Sport) Model: BOT-WN-600
All Science in Sport bottles have a unique Easy Mix System. This has been designed to deliver fast and accurate mixing. The Easy Mix System enables yo..
R125.00
Beta Fuel Gel 60ml - Single Unit (Orange)
New Hot
Brand: SiS (Science in Sport) Model: BETA-GEL-60-OR
WORLD-LEADING ENERGY GEL OPTIMISED WITH A NEW CARB RATIOPart of an entire world-leading fueling solution range that includes drinks and chews, our Bet..
R65.00
Brand: SiS (Science in Sport) Model: GO-EL-500-BC
SIS GO Electrolyte contains a blend of an easily digestible and quick supply of carbohydrates as well as electrolytes (such as sodium) that promote ..
R340.00
Beta Fuel 80g Sachets - Single Unit (Orange)
Out Of Stock
Brand: SiS (Science in Sport) Model: BETA-FUEL-OR
The famous Science in Sport Beta Fuel energy drink, long favoured by elite athletes, has now been optimized to make it a superior fuel. With a brand n..
R88.00
Brand: SiS (Science in Sport) Model: BOT-PS-700
Product Description SIS Shaker 700ml The Science in Sports shaker features the unique Easy Mix System. This has been designed to deliver fast an..
R150.00
Brand: SiS (Science in Sport) Model: GO-GEL+ELE-60-RA
The GO Energy + Electrolyte gel builds on the established science of the GO Isotonic Energy gel, the world’s first and only truly isotonic energy ge..
R1,430.00
Brand: SiS (Science in Sport) Model: BETA-GEL+NOO-60-AP
PRODUCT INFORMATIONEVIDENCE-BASED ENERGY GEL FOR PHYSICAL AND MENTAL POWER OUTPUTDESIGNED AS A WORLD-LEADING, WHOLE-BODY ENERGY SOURCE, OUR INNOVATI..
R1,900.00
Beta Fuel 60ml + Nootropics Gel - Single Unit (Lemon & Lime)
New Hot
Brand: SiS (Science in Sport) Model: BETA-GEL-60-LL
PRODUCT INFORMATIONEVIDENCE-BASED ENERGY GEL FOR PHYSICAL AND MENTAL POWER OUTPUTDESIGNED AS A WORLD-LEADING, WHOLE-BODY ENERGY SOURCE, OUR INNOVATI..
R70.00
Brand: SiS (Science in Sport) Model: REGO-RR-1600-ST
REGO Rapid Recovery is a complete recovery product to be consumed immediately after exercise. It contains a blend of carbohydrates (23g), protein (20g..
R1,085.00
GO Energy + Caffeine Gel 60ml - Single Unit (Double Espresso)
Hot Out Of Stock
Brand: SiS (Science in Sport) Model: GO-GEL+CAF-60-DE
The SIS GO Energy + Caffeine Gel 75mg builds on the established science of the SIS GO Isotonic Energy gel, the world's first and only truly isotonic..
R67.00
Brand: SiS (Science in Sport) Model: GO-GEL+ELE-60-LM
The GO Energy + Electrolyte gel builds on the established science of the GO Isotonic Energy gel, the world’s first and only truly isotonic energy ge..
R53.00
Brand: SiS (Science in Sport) Model: GO-EL-1600-OR
 SIS GO Electrolyte contains a blend of an easily digestible and quick supply of carbohydrates as well as electrolytes (such as sodium) that pr..
R945.00
Brand: SiS (Science in Sport) Model: GO-HYD-20-BE
SIS GO Hydro (Berry) is designed to ensure you are effectively hydrated to produce your best performance. As an effervescent tablet that readily dis..
R230.00
Beta Fuel Gel 60ml - Single Unit (Orange)
New Hot
Brand: SiS (Science in Sport) Model: BETA-GEL-60-OR
WORLD-LEADING ENERGY GEL OPTIMISED WITH A NEW CARB RATIOPart of an entire world-leading fueling solution range that includes drinks and chews, our Bet..
R65.00
Beta Fuel Gel 60ml -  Single Unit (Strawberry&lime)
New Hot
Brand: SiS (Science in Sport) Model: BETA-GEL-60-SL
WORLD-LEADING ENERGY GEL OPTIMISED WITH A NEW CARB RATIOPart of an entire world-leading fuelling solution range that includes drinks and chews, our ..
R65.00
Beta Fuel 60ml + Nootropics Gel - Single Unit (Apple)
New Hot
Brand: SiS (Science in Sport) Model: BETA-GEL-60-AP
PRODUCT INFORMATIONEVIDENCE-BASED ENERGY GEL FOR PHYSICAL AND MENTAL POWER OUTPUTDESIGNED AS A WORLD-LEADING, WHOLE-BODY ENERGY SOURCE, OUR INNOVATI..
R70.00
Brand: SiS (Science in Sport) Model: GO-GEL+ELE-60-RA
The GO Energy + Electrolyte gel builds on the established science of the GO Isotonic Energy gel, the world’s first and only truly isotonic energy ge..
R53.00
Beta Fuel 60ml + Nootropics Gel - Single Unit (Lemon & Lime)
New Hot
Brand: SiS (Science in Sport) Model: BETA-GEL-60-LL
PRODUCT INFORMATIONEVIDENCE-BASED ENERGY GEL FOR PHYSICAL AND MENTAL POWER OUTPUTDESIGNED AS A WORLD-LEADING, WHOLE-BODY ENERGY SOURCE, OUR INNOVATI..
R70.00
GO Energy + Caffeine Gel 60ml - Single Unit (Double Espresso)
Hot Out Of Stock
Brand: SiS (Science in Sport) Model: GO-GEL+CAF-60-DE
The SIS GO Energy + Caffeine Gel 75mg builds on the established science of the SIS GO Isotonic Energy gel, the world's first and only truly isotonic..
R67.00
Brand: SiS (Science in Sport) Model: GO-GEL+ELE-60-LM
The GO Energy + Electrolyte gel builds on the established science of the GO Isotonic Energy gel, the world’s first and only truly isotonic energy ge..
R53.00
Brand: SiS (Science in Sport) Model: GO-GEL-60-BC
The SIS GO Isotonic Energy Gel was the world's first isotonic gel effectively delivering an easily digestible and quick supply of carbohydrates for en..
R40.00
Brand: SiS (Science in Sport) Model: GO-GEL-60-OR
The SIS GO Isotonic Energy Gel was the world's first isotonic gel effectively delivering an easily digestible and quick supply of carbohydrates for en..
R40.00
Brand: SiS (Science in Sport) Model: GO-GEL+ELE-60-SC
The GO Energy + Electrolyte gel builds on the established science of the GO Isotonic Energy gel, the world’s first and only truly isotonic energy ge..
R53.00
GO Isotonic Energy Gel 60ml - Single Unit (Fruit Salad)
Out Of Stock
Brand: SiS (Science in Sport) Model: GO-GEL-60-FS
The SIS GO Isotonic Energy Gel was the world's first isotonic gel effectively delivering an easily digestible and quick supply of carbohydrates for en..
R40.00
Beta Fuel 80g Sachets - Single Unit (Orange)
Out Of Stock
Brand: SiS (Science in Sport) Model: BETA-FUEL-OR
The famous Science in Sport Beta Fuel energy drink, long favoured by elite athletes, has now been optimized to make it a superior fuel. With a brand n..
R88.00
Brand: SiS (Science in Sport) Model: GO-GEL-60-TR
The SIS GO Isotonic Energy Gel was the world's first isotonic gel effectively delivering an easily digestible and quick supply of carbohydrates for ..
R40.00
Brand: SiS (Science in Sport) Model: GO-GEL-60-PG
The SIS GO Isotonic Energy Gel was the world's first isotonic gel effectively delivering an easily digestible and quick supply of carbohydrates for en..
R40.00
Brand: SiS (Science in Sport) Model: BETA-PWD-80-BE
The famous Science in Sport Beta Fuel energy drink, long favoured by elite athletes, has now been optimized to make it a superior fuel. A brand new ra..
R88.00
Brand: SiS (Science in Sport) Model: GO-GEL-60-AP
The SIS GO Isotonic Energy Gel was the world's first isotonic gel effectively delivering an easily digestible and quick supply of carbohydrates for en..
R40.00
Brand: SiS (Science in Sport) Model: BETA-PWD-80-SL
The famous Science in Sport Beta Fuel energy drink, long favoured by elite athletes, has now been optimized to make it a superior fuel. With a brand n..
R88.00
GO Energy + Caffeine Gel 60ml - Single Unit (Berry)
Out Of Stock
Brand: SiS (Science in Sport) Model: GO-GEL+CAF-60-BE
The SIS GO Energy + Caffeine Gel 75mg builds on the established science of the SiS GO Isotonic Energy gel, the world's first and only truly isotonic e..
R67.00
Brand: SiS (Science in Sport) Model: GO-GEL+CAF-60-CO
The SIS GO Energy + Caffeine Gel 75mg builds on the established science of the SIS GO Isotonic Energy gel, the world's first and only truly isotonic..
R67.00
GO Isotonic Energy Gel 60ml - Single Unit (Lemon & Lime)
New Out Of Stock
Brand: SiS (Science in Sport) Model: GO-GEL-60-LL
The SIS GO Isotonic Energy Gel was the world's first isotonic gel effectively delivering an easily digestible and quick supply of carbohydrates for en..
R40.00
Protein20 bar 64g - Single Unit (Salted Caramel) - On Sale
New -15 %
Brand: SiS (Science in Sport) Model: PROTEIN20-BAR-64-SC-OCT24
This is on special because the BEST BEFORE date is OCTOBER 2024.Protein Bars contain a blend of easily digestible proteins (20 grams p..
R55.00 R65.00
 GO Energy Bake 50g - Single Unit (Strawberry)
New -20 %
Brand: SiS (Science in Sport) Model: GO-BAKE-50-ST-SEPT24
This is on special because the BEST BEFORE date is SEPTEMBER 2024.GO Energy Bake adopts a scientific approach to energy bars, deliveri..
R39.00 R49.00
 GO Energy Bake 50g - 12 Pack (Strawberry)
New -20 %
Brand: SiS (Science in Sport) Model: GO-BAKE-50-ST-SEP24
This is on special because the BEST BEFORE date is SEPTEMBER 2024.GO Energy Bake adopts a scientific approach to energy bars, deliveri..
R424.00 R530.00
Beta Fuel Energy Chew 60g - Single Unit (Orange) - On Sale
New -10 %
Brand: SiS (Science in Sport) Model: BETA-CH-60-OR-SP-SEP24
 This is on special because the BEST BEFORE date is SEPTEMBER 2024.Beta Fuel Dual Source Energy Chews provide you with scien..
R63.00 R70.00
Brand: SiS (Science in Sport) Model: BETA-6PK-CH-60-OR
Beta Fuel Dual Source Energy Chews provide you with scientifically superior energy in unique and satisfying chewy bars. Part of a whole range of wor..
R410.00
Brand: SiS (Science in Sport) Model: BETA-6PK-CH-60-LE
Beta Fuel Dual Source Energy Chews provide you with scientifically superior energy in unique and satisfying chewy bars. Part of a whole range of wor..
R410.00
Protein20 Bar 64g - 12 Pack (Salted Caramel) - On sale
New -15 %
Brand: SiS (Science in Sport) Model: PROTEIN20-BAR-64-PJ-OCT24
This is on special because the BEST BEFORE date is OCTOBER 2024.A HIGH-PROTEIN VEGAN-FRIENDLY SNACK FOR MUSCLE RECOVERY AND REBUILDWith..
R599.00 R705.00
Protein20 bar 64g - Single Unit (Salted Caramel) - On Sale
New -35 %
Brand: SiS (Science in Sport) Model: PROTEIN20-BAR-64-SC-AUG24
This is on special because the BEST BEFORE date is AUGUST 2024.Protein Bars contain a blend of easily digestible proteins (20 grams pe..
R42.50 R65.00
Brand: SiS (Science in Sport) Model: GO-BAKE-50-LE
GO Energy Bake adopts a scientific approach to energy bars, delivering 30 grams of carbohydrates in a soft-filled bake. Each bake has a fruit center p..
R49.00
Protein20 bar 64g - Single Unit (Vanilla Fudge) - On Sale
New -15 %
Brand: SiS (Science in Sport) Model: PROTEIN20-BAR-64-VF-SP-SEP24
This is on special because the BEST BEFORE date is SEPTEMBER 2024.Protein Bars contain a blend of easily digestible proteins (20 grams..
R42.50 R50.00
Brand: SiS (Science in Sport) Model: GO-EL-500-LL
SIS GO Electrolyte contains a blend of an easily digestible and quick supply of carbohydrates as well as electrolytes (such as sodium) that promote op..
R340.00
Brand: SiS (Science in Sport) Model: BOT-WN-800
All Science in Sport bottles have a unique Easy Mix System. This has been designed to deliver fast and accurate mixing. The Easy Mix System enables yo..
R145.00
Brand: SiS (Science in Sport) Model: GO-GEL-60-VAR-7
The world's first isotonic energy gel in multiple flavours87 calories per servingDelivers an easily digestible and quick supply of carbohydrateOUR ORI..
R265.00
GO Hydro 20 Tabs - Single Unit ( Pineapple & Mango) - On sale
New -60 %
Brand: SiS (Science in Sport) Model: GO-HYD-20-PM-SP-JUNE2024
This is on special because the BEST BEFORE date is June 2024.SIS GO Hydro is designed to ensure you are effectively hydrated to produce your..
R92.00 R230.00
Protein20 Bar 64g - Single Unit  (Peanut Butter & Jelly) - On sale
New -15 %
Brand: SiS (Science in Sport) Model: PROTEIN20-BAR-64-PJ-SP-OCT24
This is on special because the BEST BEFORE date is OCTOBER 2024.A HIGH-PROTEIN VEGAN-FRIENDLY SNACK FOR MUSCLE RECOVERY AND REBUILDWit..
R42.50 R50.00
Protein20 Bar 64g - 12 Pack (Peanut Butter & Jelly) - On sale
New -15 %
Brand: SiS (Science in Sport) Model: PROTEIN20-BAR-64-PJ-SP-OCT24
This is on special because the BEST BEFORE date is OCTOBER 2024. A HIGH-PROTEIN VEGAN-FRIENDLY SNACK FOR MUSCLE RECOVERY AND REBUI..
R599.00 R705.00
Brand: SiS (Science in Sport) Model: BETA-6PK-GEL-60-SL
WORLD-LEADING ENERGY GEL OPTIMISED WITH A NEW CARB RATIOPart of an entire world-leading fuelling solution range that includes drinks and chews, our ..
R380.00
 GO Energy Bake 50g - Single Unit (Lemon)- On Sale
New -31 %
Brand: SiS (Science in Sport) Model: GO-BAKE-50-LE-SP-AUG24
This is on special because the BEST BEFORE date is AUGUST 2024.GO Energy Bake adopts a scientific approach to energy bars, delivering 3..
R34.00 R49.00
Brand: SiS (Science in Sport) Model: PROTEIN20-BAR-64-VF
A HIGH-PROTEIN VEGAN-FRIENDLY SNACK FOR MUSCLE RECOVERY AND REBUILDWith great-tasting new flavours and an improved recipe, our Science in Sport PROT..
R705.00
 GO Energy Bake 50g - 12 Pack (Lemon) - On sale
New -30 %
Brand: SiS (Science in Sport) Model: GO-BAKE-50-LE-SP-AUG24
This is on special because the BEST BEFORE date is AUGUST 2024.GO Energy Bake adopts a scientific approach to energy bars, delivering ..
R371.00 R530.00
 GO Energy Bake 50g - 12 Pack (Lemon) - On sale
New -30 %
Brand: SiS (Science in Sport) Model: GO-BAKE-50-LE-SP-AUG24
This is on special because the BEST BEFORE date is AUGUST 2024.GO Energy Bake adopts a scientific approach to energy bars, delivering ..
R371.00 R530.00
 GO Energy Bake 50g - 12 Pack (Strawberry)
New -20 %
Brand: SiS (Science in Sport) Model: GO-BAKE-50-ST-SEP24
This is on special because the BEST BEFORE date is SEPTEMBER 2024.GO Energy Bake adopts a scientific approach to energy bars, deliveri..
R424.00 R530.00
 GO Energy Bake 50g - Single Unit (Lemon)- On Sale
New -31 %
Brand: SiS (Science in Sport) Model: GO-BAKE-50-LE-SP-AUG24
This is on special because the BEST BEFORE date is AUGUST 2024.GO Energy Bake adopts a scientific approach to energy bars, delivering 3..
R34.00 R49.00
 GO Energy Bake 50g - Single Unit (Strawberry)
New -20 %
Brand: SiS (Science in Sport) Model: GO-BAKE-50-ST-SEPT24
This is on special because the BEST BEFORE date is SEPTEMBER 2024.GO Energy Bake adopts a scientific approach to energy bars, deliveri..
R39.00 R49.00
Beta Fuel Energy Chew 60g - Single Unit (Lemon) - On Sale
New -26 %
Brand: SiS (Science in Sport) Model: BETA-CH-60-LE-SP-AUG24
 This is on special because the BEST BEFORE date is AUGUST 2024.Beta Fuel Dual Source Energy Chews provide you with scientifically sup..
R52.00 R70.00
Beta Fuel Energy Chew 60g - Single Unit (Orange) - On Sale
New -10 %
Brand: SiS (Science in Sport) Model: BETA-CH-60-OR-SP-SEP24
 This is on special because the BEST BEFORE date is SEPTEMBER 2024.Beta Fuel Dual Source Energy Chews provide you with scien..
R63.00 R70.00
GO Energy Bar 40g - 30 Pack (Apple & Blackcurrant) - On Sale
New -20 %
Brand: SiS (Science in Sport) Model: GO-BAR-40-AB-SP-SEPT24
This is on special because the BEST BEFORE date is SEPTEMBER 2024. SIS GO Energy bars are a nutritious, easily digestible, and high car..
R972.00 R1,215.00
GO Energy Bar 40g - Single Unit (Apple & Blackcurrant) - On Sale
New -20 %
Brand: SiS (Science in Sport) Model: GO-BAR-40-AB-SP-SEPT24
This is on special because the BEST BEFORE date is SEPTEMBER 2024.SiS GO Energy bars are a nutritious, easily digestible, and high carbohydr..
R36.00 R45.00
GO Hydro 20 Tabs - Single Unit ( Pineapple & Mango) - On sale
New -60 %
Brand: SiS (Science in Sport) Model: GO-HYD-20-PM-SP-JUNE2024
This is on special because the BEST BEFORE date is June 2024.SIS GO Hydro is designed to ensure you are effectively hydrated to produce your..
R92.00 R230.00
GO Isotonic Energy Gel 60ml - Single Unit (Lemon & Lime)  - On Sale
New -60 %
Brand: SiS (Science in Sport) Model: GO-GEL-60-LL-SP-APR24
This is on special because the BEST BEFORE date is APRIL 2024.The SiS GO Isotonic Energy Gel was the world's first isotonic gel ef..
R16.00 R40.00
Protein20 Bar 64g - 12 Pack (Peanut Butter & Jelly) - On sale
New -15 %
Brand: SiS (Science in Sport) Model: PROTEIN20-BAR-64-PJ-SP-OCT24
This is on special because the BEST BEFORE date is OCTOBER 2024. A HIGH-PROTEIN VEGAN-FRIENDLY SNACK FOR MUSCLE RECOVERY AND REBUI..
R599.00 R705.00
Protein20 Bar 64g - 12 Pack (Salted Caramel) - On sale
New -15 %
Brand: SiS (Science in Sport) Model: PROTEIN20-BAR-64-PJ-OCT24
This is on special because the BEST BEFORE date is OCTOBER 2024.A HIGH-PROTEIN VEGAN-FRIENDLY SNACK FOR MUSCLE RECOVERY AND REBUILDWith..
R599.00 R705.00
Protein20 Bar 64g - Single Unit  (Peanut Butter & Jelly) - On sale
New -15 %
Brand: SiS (Science in Sport) Model: PROTEIN20-BAR-64-PJ-SP-OCT24
This is on special because the BEST BEFORE date is OCTOBER 2024.A HIGH-PROTEIN VEGAN-FRIENDLY SNACK FOR MUSCLE RECOVERY AND REBUILDWit..
R42.50 R50.00
Protein20 bar 64g - Single Unit (Salted Caramel) - On Sale
New -15 %
Brand: SiS (Science in Sport) Model: PROTEIN20-BAR-64-SC-OCT24
This is on special because the BEST BEFORE date is OCTOBER 2024.Protein Bars contain a blend of easily digestible proteins (20 grams p..
R55.00 R65.00
Protein20 bar 64g - Single Unit (Salted Caramel) - On Sale
New -35 %
Brand: SiS (Science in Sport) Model: PROTEIN20-BAR-64-SC-AUG24
This is on special because the BEST BEFORE date is AUGUST 2024.Protein Bars contain a blend of easily digestible proteins (20 grams pe..
R42.50 R65.00
Protein20 bar 64g - Single Unit (Vanilla Fudge) - On Sale
New -15 %
Brand: SiS (Science in Sport) Model: PROTEIN20-BAR-64-VF-SP-SEP24
This is on special because the BEST BEFORE date is SEPTEMBER 2024.Protein Bars contain a blend of easily digestible proteins (20 grams..
R42.50 R50.00
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