A 500g stand-up pouch of SIS Rego Rapid Recovery powder in Vanilla flavor, featuring a white and black design with red graphic accents, set against a light gray background.
A 500g stand-up pouch of SIS Rego Rapid Recovery powder in strawberry flavor, featuring a white and black design with red graphic accents on a light gray background.
Person drinking from a SIS (Science in Sport) water bottle outdoors.
SiS Rego Rapid Recovery package and shaker bottle with strawberries on a reflective surface.
Three packages of SIS Rego Rapid Recovery on grass with a sports field background
A stand-up pouch of SIS Science in Sport Rego Rapid Recovery powder, chocolate flavor, 500g. The packaging is white with a black top section, a red and white graphic pattern on the left, and black text.
Package of Science in Sport REGO Rapid Recovery on a white background
A 1.5kg bag of SIS Science in Sport Rego Rapid Recovery chocolate flavored powder, shown on a clean light gray background.
Package of Science in Sport REGO Rapid Recovery on a white background
A 500g stand-up pouch of SIS Rego Rapid Recovery powder in Vanilla flavor, featuring a white and black design with red graphic accents, set against a light gray background.
A 500g stand-up pouch of SIS Rego Rapid Recovery powder in strawberry flavor, featuring a white and black design with red graphic accents on a light gray background.
Person drinking from a SIS (Science in Sport) water bottle outdoors.
SiS Rego Rapid Recovery package and shaker bottle with strawberries on a reflective surface.
Three packages of SIS Rego Rapid Recovery on grass with a sports field background
A stand-up pouch of SIS Science in Sport Rego Rapid Recovery powder, chocolate flavor, 500g. The packaging is white with a black top section, a red and white graphic pattern on the left, and black text.
Package of Science in Sport REGO Rapid Recovery on a white background
A 1.5kg bag of SIS Science in Sport Rego Rapid Recovery chocolate flavored powder, shown on a clean light gray background.
Package of Science in Sport REGO Rapid Recovery on a white background

SiS

SIS Rego Rapid Recovery Drink

£17.99

A post-workout recovery drink combining plant-based soya protein, carbohydrate and added L-leucine in one easy mix.

Quantity Size: 5 Serve Pouch (500g)
Flavour: Vanilla
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SiS REGO Rapid Recovery Drink is a post-exercise powder developed to help athletes refuel after demanding training and competition. Combining soya protein with carbohydrate, it offers runners, cyclists, triathletes and gym users a convenient option when a prepared recovery meal is not immediately available.

A 50g serving provides approximately 21–22g protein and 22–23g carbohydrate, depending on flavour, together with added L-leucine and selected vitamins and minerals. Protein contributes to the growth and maintenance of muscle mass, while carbohydrate can help replenish energy stores after exercise. Mixed with cold water, REGO is an easy addition to a structured recovery routine following hard or repeated sessions.
Product Specifications

Product: SiS REGO Rapid Recovery Drink
Product Type: Post-exercise carbohydrate and protein recovery drink
Format: Recovery powder
Serving Size: 50g / 2 full scoops
Mixing Instructions: Mix 50g with 500ml of cold water and shake well
Protein Per Serving: 21g
Protein Source: Soy protein
Carbohydrate Per Serving: 22g
L-Leucine Per Serving: 2.5g
Calories Per Serving: Approx. 177 kcal for Chocolate
Fat Per Serving: 0.4g for Chocolate
Sugars Per Serving: 1.5g for Chocolate
Salt Per Serving: 1.2g for Chocolate
Added Vitamins & Minerals: Includes Vitamins B6, B12, C and E, niacin, pantothenic acid, folic acid, biotin, iron and zinc
Primary Use: Post-exercise refuelling and muscle recovery
Recommended Use: Consume within 30–60 minutes after exercise
Best For: Running, cycling, triathlon, endurance training, gym sessions, races and back-to-back training days
Available Sizes: Single Serve, Box of 18, 500g / 10 Serving Pouch and 1.5kg / 30 Serving Pouch
Available Flavours: Chocolate, Strawberry, Banana and Vanilla
Dietary Suitability: Vegan-friendly and suitable for lactose-intolerant athletes
Certification: Informed Sport certified
Key Features: 21g plant-based protein, 22g carbohydrate, 2.5g L-Leucine, added vitamins and minerals, easy 500ml water mix and complete post-workout recovery support
Why We Choose SiS

We choose SiS - Science in Sport because they create trusted sports nutrition products designed to help athletes fuel, hydrate and recover with confidence. From isotonic energy gels and electrolyte tablets to recovery drinks and advanced endurance fuelling, SiS supports runners, cyclists, triathletes and active individuals before, during and after training and racing.

Science-Led – Developed with a clear focus on sports science, performance nutrition and real-world athlete needs.

Easy to Use – Practical fuelling solutions such as isotonic energy gels that are simple to take during exercise, with no unnecessary complexity.

Endurance Focused – Designed to support sustained energy, hydration and recovery across running, cycling, triathlon and high-intensity training.

Trusted by Athletes – Used by everyday athletes and elite performers who need reliable nutrition when performance matters.

That’s why SiS is part of the North Sports collection — giving you proven sports nutrition to fuel harder sessions, support recovery and perform at your best.
Quantity Size: 5 Serve Pouch (500g)
Flavour: Vanilla

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