Science in Sport

Science in Sport (SiS) mixes qualified sport scientists, food technologists and physicians with keen athletes and sports people who have competed from local level to the world stage.

As a result of all this experience they have an unprecedented knowledge of the nutritional needs of athletes.

Science in Sport designs, develops and manufacturers its own products to ensure they are of the highest quality, and to date it has helped athletes win Olympic Golds, World Championships, Premiership Titles and set numerous World Records.

SiS Amino Acids

SiS Beta Alanine

SiS Beta Alanine (180g)

• Out of stock

£16.17

SiS Glutamine

SiS Glutamine (250g)

• In Stock, Next Day Delivery

£14.99

SiS Creatine

SiS Creatine Powder

SiS Creatine (250g)

• In Stock, Next Day Delivery

£8.17

SiS Performance

SiS Energy

SiS Go Gel Isotonic Energy (1 Gel)

• In Stock, Next Day Delivery

£0.82

SiS PSP22 Energy (1 x 50g Sachet)

• In Stock, Next Day Delivery

£0.95

SiS PSP22 Energy Organic (1 x 50g Sachet)

• In Stock, Next Day Delivery

£1.14

SiS Smart 1 Gel (1 x 60ml Gel)

• In Stock, Next Day Delivery

£1.39

SiS Burner Gel (1 x 60ml Gel)

• Out of stock

£1.67

SiS PSP22 Energy (500g)

• In Stock, Next Day Delivery

£6.49

SiS Hedstart (3 x 25g Sachets)

• Out of stock

£7.95

SiS Smart 1 (500g)

• Out of stock

£8.99

SiS PSP22 Energy (1600g)

• In Stock, Next Day Delivery

£13.79

SiS PSP22 Energy (18 x 50g Sachets)

• In Stock, Next Day Delivery

£13.85

SiS Smart 1 (18 x 45g Sachets)

• In Stock, Next Day Delivery

£16.99

SiS PSP22 Energy Organic (18 x 50g Sachets)

• In Stock, Next Day Delivery

£18.49

SiS Go Gel Isotonic Energy (30 Gels)

• In Stock, Next Day Delivery

£20.99

SiS PSP22 Energy (2700g)

• Out of stock

£21.29

SiS PSP22 Energy Organic (1400g)

• In Stock, Next Day Delivery

£24.49

SiS Smart 1 Gel (30 x 60ml Gels)

• In Stock, Next Day Delivery

£34.99

SiS Burner Gels (30 x 60ml Gels)

• Out of stock

£39.49

SiS Hydration

SiS Go Electrolyte (1 x 40g Sachet)

• In Stock, Next Day Delivery

£0.83

SiS Go Electrolyte Organic (1 x 40g Sachet)

• In Stock, Next Day Delivery

£1.25

SiS Superhydro 15:30 (12 x 4g Sachets)

• Out of stock

£4.59

SiS Go Electrolyte (500g)

• In Stock, Next Day Delivery

£6.49

SiS Go Electrolyte (18 x 40g Sachets)

• In Stock, Next Day Delivery

£13.99

SiS Go Electrolyte (1600g)

• In Stock, Next Day Delivery

£15.99

SiS Go Electrolyte Organic (18 x 40g Sachets)

• In Stock, Next Day Delivery

£17.99

SiS Go Electrolyte Organic (1400g)

• In Stock, Next Day Delivery

£27.99

SiS Protein

SiS Post Workout Recovery

SiS Rego Recovery (1 x 50g Sachet)

• In Stock, Next Day Delivery

£0.89

SiS Rego Rapid (1 x 50g Sachet)

• In Stock, Next Day Delivery

£1.09

SiS Rego Recovery (500g)

• In Stock, Next Day Delivery

£6.49

SiS Rego Recovery (18 x 50g Sachets)

• In Stock, Next Day Delivery

£14.89

SiS Rego Rapid (15 x 50g Sachets)

• In Stock, Next Day Delivery

£16.99

SiS Rego Recovery (1600g)

• In Stock, Next Day Delivery

£19.99

SiS Rego Rapid (1600g)

• In Stock, Next Day Delivery

£33.50

SiS Protein Bar

SiS Go Bar (1 x 65g Bar)

• In Stock, Next Day Delivery

£0.89

SiS Build Bar (1 x 55g Bar)

• Out of stock

£1.49

SiS Go Bar (24 x 65 Bars)

• In Stock, Next Day Delivery

£19.99

SiS Go Bar (30 x 40g Mini Bars)

• In Stock, Next Day Delivery

£21.99

SiS Build Bar (20 x 55g Bars)

• In Stock, Next Day Delivery

£26.40

SiS Protein Blend

SiS Nocte (1 x 40g Sachet)

• In Stock, Next Day Delivery

£1.25

SiS Nocte (15 x 40g Sachets)

• In Stock, Next Day Delivery

£17.99

SiS Nocte (1100g)

• In Stock, Next Day Delivery

£31.50

SiS Whey Protein

SiS Build (1 x 40g Sachet)

• In Stock, Next Day Delivery

£1.25

SiS Build (15 x 40g Sachets)

• In Stock, Next Day Delivery

£16.99

SiS Build (1200g)

• In Stock, Next Day Delivery

£29.99

SiS Weight Loss

SiS CLA

SiS CLA Isomers (90 Softgels)

• In Stock, Next Day Delivery

£15.49

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