SIS REGO Rapid Recovery 1.5kg | Leucine Boost

SIS Rego Rapid Recovery Drink - 1.5kg

Chocolate

£50.00

A vegan post-exercise recovery drink combining carbohydrate, soya protein isolate, and 2.5g L-Leucine per serving, Informed Sport certified, selected by the PEAK4 expert team.

£50.00

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PEAK4 Experts' Review

The PEAK4 expert team selected SIS REGO Rapid Recovery for its focus on the golden recovery window and a properly dosed 2.5g leucine per serving.

Details

Brand SIS

Certifications

Vegan

Mix one 50g serving with water and consume within 30 minutes of finishing exercise for maximum recovery benefit.

Soya Protein Isolate (48-51%), Maltodextrin (40-44%), Flavourings, L-Leucine, Sodium Chloride, Sweetener (Sucralose), Vitamin and Mineral Blend (Vitamin C, Niacin, Ferric Pyrophosphate, Vitamin E, Zinc Sulphate, Pantothenic Acid, Vitamin B6, Vitamin B2, Vitamin B1, Folic Acid, Potassium Iodide, Biotin, Vitamin B12), Thickener (Xanthan Gum).

Contains Soy. Produced in a facility that also handles milk.

Informed Sport Certified

Key Benefits

2.5g L-Leucine

A properly dosed amount of the amino acid most linked to muscle protein synthesis.

2.5g leucine

Informed Sport Certified

Tested and certified for competing athletes.

Informed Sport

Fully Vegan

Soya protein isolate instead of dairy-derived whey.

Vegan

30 Servings

1.5kg pouch, built for regular post-training use.

30 servings

22g Protein Per Serving

Delivers 22g of plant-based protein alongside 23g of carbohydrate in every 50g serving.

22g protein

Full Vitamin & Mineral Blend

Includes Vitamin C, Vitamin E, B vitamins, and zinc to support recovery and immune health.

Vitamins + minerals

Science in Sport (SIS)

The PEAK4 expert team selects SIS for its Informed Sport Site and Product Certification, the only sports nutrition brand globally to hold both, backed by the full PEAK4 performance ecosystem and free UK delivery over £50.

Dual Informed Sport certified

SIS REGO Rapid Recovery: Soya Protein, Leucine, Informed Sport Certified
The PEAK4 expert team selected SIS REGO Rapid Recovery for its focus on the "golden window" immediately after exercise, when carbohydrate and protein replenishment matters most.

Each serving delivers a blend of carbohydrate, high-quality soya protein isolate, and 2.5g of L-Leucine, the amino acid most directly linked to muscle protein synthesis, alongside a full vitamin and mineral blend.

SIS REGO Rapid Recovery contains 2.5g of L-Leucine per serving, an amino acid that plays a key signalling role in triggering muscle protein synthesis after exercise.