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 Go Hydro (20 Tabs)

• In Stock, Next Day Delivery

£4.75

SiS Amino Acids

SiS Beta Alanine

SiS Beta Alanine (180g)

• Out of stock

£17.95

SiS Glutamine

SiS Glutamine (250g)

• In Stock, Next Day Delivery

£16.99

SiS Creatine

SiS Creatine Powder

SiS Creatine (250g)

• In Stock, Next Day Delivery

£8.99

SiS Performance

SiS Energy

SiS Go Gel Isotonic Energy (1 Gel)

• In Stock, Next Day Delivery

£0.99

SiS (PSP22) Go Energy Organic (1 x 50g Sachet)

• Out of stock

£1.49

SiS Smart 1 Gel (1 x 60ml Gel)

• In Stock, Next Day Delivery

£1.49

SiS (PSP22) Go Energy (1 x 50g Sachet)

• In Stock, Next Day Delivery

£1.49

SiS Burner Gel (1 x 60ml Gel)

• Out of stock

£1.67

SiS (PSP22) Go Energy (500g)

• In Stock, Next Day Delivery

£7.49

SiS Hedstart (3 x 25g Sachets)

• Out of stock

£7.95

SiS Smart 1 (500g)

• Out of stock

£10.99

SiS (PSP22) Go Energy (18 x 50g Sachets)

• In Stock, Next Day Delivery

£15.99

SiS Smart 1 (18 x 45g Sachets)

• In Stock, Next Day Delivery

£17.99

SiS (PSP22) Go Energy (1600g)

• In Stock, Next Day Delivery

£17.99

SiS (PSP22) Go Energy Organic (18 x 50g Sachets)

• Out of stock

£22.49

SiS (PSP22) Go Energy (2700g)

• Out of stock

£23.99

SiS Go Gel Isotonic Energy (30 Gels)

• In Stock, Next Day Delivery

£27.95

SiS (PSP22) Go Energy Organic (1400g)

• Out of stock

£31.49

SiS Burner Gels (30 x 60ml Gels)

• Out of stock

£39.49

SiS Smart 1 Gel (30 x 60ml Gels)

• In Stock, Next Day Delivery

£41.99

SiS Hydration

SiS Go Electrolyte (1 x 40g Sachet)

• In Stock, Next Day Delivery

£0.99

SiS Go Electrolyte Organic (1 x 40g Sachet)

• Out of stock

£1.99

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

• Out of stock

£5.99

SiS Go Electrolyte (500g)

• In Stock, Next Day Delivery

£7.59

SiS Go Electrolyte (18 x 40g Sachets)

• In Stock, Next Day Delivery

£16.99

SiS Go Electrolyte (1600g)

• In Stock, Next Day Delivery

£18.49

SiS Go Electrolyte Organic (18 x 40g Sachets)

• Out of stock

£21.99

SiS Go Electrolyte Organic (1400g)

• Out of stock

£31.99

SiS Protein

SiS Post Workout Recovery

SiS Rego Rapid (1 x 50g Sachet)

• In Stock, Next Day Delivery

£1.49

SiS Rego Recovery (1 x 50g Sachet)

• In Stock, Next Day Delivery

£1.49

SiS Rego Recovery (500g)

• In Stock, Next Day Delivery

£7.49

SiS Rego Recovery (18 x 50g Sachets)

• In Stock, Next Day Delivery

£19.99

SiS Rego Rapid (15 x 50g Sachets)

• In Stock, Next Day Delivery

£20.49

SiS Rego Recovery (1600g)

• In Stock, Next Day Delivery

£23.75

SiS Rego Rapid (1600g)

• In Stock, Next Day Delivery

£34.99

SiS Protein Bar

SiS Go Energy Bar (1 x 65g Bar)

• In Stock, Next Day Delivery

£1.49

SiS Build Bar (1 x 55g Bar)

• Out of stock

£1.49

SiS Go Energy Bar (24 x 65 Bars)

• In Stock, Next Day Delivery

£22.49

SiS Build Bar (20 x 55g Bars)

• Out of stock

£24.99

SiS Protein Blend

SiS Nocte (1 x 40g Sachet)

• In Stock, Next Day Delivery

£1.49

SiS Nocte (15 x 40g Sachets)

• In Stock, Next Day Delivery

£21.99

SiS Rego (Nocte) Night (1100g)

• In Stock, Next Day Delivery

£31.99

SiS Whey Protein

SiS Build (1 x 40g Sachet)

• In Stock, Next Day Delivery

£1.99

SiS Build (15 x 40g Sachets)

• In Stock, Next Day Delivery

£20.49

SiS Build (1200g)

• In Stock, Next Day Delivery

£34.49

SiS Weight Loss

SiS CLA

SiS CLA Isomers (90 Softgels)

• In Stock, Next Day Delivery

£15.95

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