SIS GO Energy 500g

SIS GO Energy 500g

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Fuel up, energize and improve your performance with Go Energy (PSP22). Ideal for long workouts, carbo-loading or when you need that extra boost, Go Energy is versatile and can be used at high concentrations to give you the ultimate energy drink.

  • This is exactly the same product as PSP22 High Energy Sports Fuel only the name has changed*
  • Before and During exercise
  • Light on the Stomach
  • Satisfies carbohydrate and fluid needs
  • Makes 5 litres
  • Food Type: Energy
  • Vegan Friendly
  • Vegetarian Friendly

PSP22 should be your choice for a fast and sustained energy boost. Versatile enough for use before, during or after exercise.

High grade maltodextrin provides glucose polymers which keep the energy high and the osmolality low - putting less pressure on the stomach. Fructose helps maximise energy delivery as it is absorbed using a different mechanism than glucose.

Only natural flavours are used which give a clean refreshing taste.
Use before as an easy way to take on board low bulk carbohydrate for carbo-loading and boosting the carbohydrate in pre-exercise meals, use during exercise as a power packed drink to energize your performance or use after to re-fuel your muscles.

PSP22 contains multiple energy sources to maximize energy supply to the muscles and liver, and is light on the stomach so can be taken at high concentrations for maximum energy. Available in Orange, Lemon and Blackcurrant flavour, or non-flavoured Original.

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Delivery and Returns


SPRINT Next working day FREE on orders over £100
(£6 for orders up to £100)
RUN 2-3 working days FREE on orders over £50
(£3 for orders up to £50)
Royal Mail
CLICK & COLLECT (Glasgow) 1-2 Working days FREE  
SATURDAY DELIVERY 1 working day £12 Royal Mail

Orders received before 2pm (Monday-Friday) are processed on the same day - after 2pm orders will be processed on the next working day.

Click & Collect

Collect your order in person from the achilles heel Glasgow running shop. Orders placed before 2pm will be available for collection on the next working day; orders placed after 2pm will be available for collection in 2 working days. Orders placed over the weekend will be available for collection on the Tuesday.

As soon as your order is ready for collection we will email to let you know. When you collect your order please ensure you bring your order confirmation & identification.

International Delivery

We'll package and post your order to most locations across the world as quickly as we can - for full details of delivery charges for international orders check our delivery charges page.

Spend £200+ and get FREE EU delivery.


At achilles heel we aim to please, so if you're not completely satisfied with your order, we'll do whatever we can to make it better. Items can be returned for free for an exchange or a refund within 28 days of purchase - we offer free & easy tracked returns via Royal Mail, for full details please check our returns page.


It can be hard to get things right so we are giving 28 days from Christmas Day to return your gifts on all orders made during November and December. Our returns policy will revert to the standard 28-day period for items purchased after December 31st.

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