Electrolyte RX Sachet Box:
Introducing the Electrolyte RX Sachet Box! You can now try 6 flavours of electrolyte sachet in 1 box. Each sachet contains over 3000mg coconut water powder & 3300mg electrolyte profile.
Purchasing the sachet box allows you to try a selection of flavours without committing to a larger tub. Plus, these sachets are super convenient for taking to fitness competitions, fitness events or when travelling and save carrying an open tubs of powder with you.
The box contains 24 x 10g sachets:
- 4 x Electrolyte RX - Mixed Berry
- 4 x Electrolyte RX - Raspberry Lemonade
- 4 x Electrolyte RX - Orange & Mango
- 4 x Electrolyte RX - Apple & Elderflower
- 4 x Electrolyte RX - Lemon, Lime & Mint
- 4 x Electrolyte RX - Raspberry Bubblegum Bottles
Electrolyte RX is a sports nutrition powder that can be used replenish lost minerals during and after exercise. Fluid and electrolytes are lost during sweat while you’re working out, and even modest fluid losses could diminish your physical performance.
Electrolyte RX is suitable for a training day and a rest day. Being an nutrient and mineral replenishment you can consume it before, during and after your workout.
The average athlete loses 1-3 litres of sweat per hour. Sweat is primarily made up of water, but it also contains electrolytes that have essential roles in the body. The electrolytes in our sweat are mostly made up of sodium, chloride, potassium, magnesium and calcium are present in smaller amounts.
When you look for a good electrolyte is should have a good dose of both sodium and chloride, often brands will reduce the sodium levels to prevent any mild salty taste.
When you exercise, you will sweat and lose minerals that are vital for your fitness & overall health. Magnesium is important for supporting muscle and nerve function and energy production, sodium for fluid balance maintenance and potassium is a key component for muscular contraction and supports normal blood pressure.
This electrolyte powder had been RX'd with added coconut water powder, keeping your hydration in check.
Directions for Use:
Mix 1 x sachet (10g) with 500ml of cold water and consume during workout. We recommend 1 serving daily.
Suitable for vegans
NO DAIRY
NO ADDITIVES
NO ADDED SUGAR
NO PRESERVATIVES
Allergen Warning: None
Warnings: Food supplements must not be used as a substitute for a varied and balanced diet and a healthy lifestyle. If you are pregnant, breastfeeding or taking any medications, please consult a doctor before use. Discontinue use and consult a doctor if adverse reactions occur. Not intended for use by persons under the age of 18. Keep out of reach of children. Store in a cool, dry place. Do not use if seal is broken or missing. This information is not intended to diagnose, treat or cure any ailment.
Manufactured in a facility that handles celery, cereals containing gluten, crustaceans, eggs, fish, milk, molluscs, soybeans, sulphites and products thereof.
Delivery Terms & Conditions / Options & Info
Operated by Nutrition & Internet Supplements Limited (trading as NI Supplements). Last updated: 13 October 2025
UK Mainland (excluding Highlands & Islands)
Orders under £50
Service | Price | Speed | Notes |
---|---|---|---|
1–2 Day Delivery (No Signature Required) | £2.95 | Fully tracked; 91% delivered next day if ordered before 1 p.m. (excl. Sundays) | Photographic & GPS delivery proof confirms delivery. Non-delivery claims are investigated; parcels confirmed delivered by Royal Mail are not eligible for replacement. |
1–2 Day Delivery (Signature Required) | £3.35 | Fully tracked; 91% delivered next day if ordered before 1 p.m. (excl. Sundays) | Signature required at delivery. |
FREE delivery on orders over £50
Service | Price | Speed | Notes |
---|---|---|---|
4–5 Day Delivery (No Signature Required) | Free | Fully tracked (excl. Sundays) | Terms for “No Signature Required” (photo/GPS proof) apply. |
4–5 Day Delivery (Signature Required) | Free | Fully tracked (excl. Sundays) | Signature required. |
Reminder: Selecting “No Signature Required” means your parcel may be left at your address or a designated safe location without a signature, with photo/GPS proof used to confirm delivery.
UK Mainland (excluding Highlands & Islands)
Orders under £50
Service | Price | Speed | Notes |
---|---|---|---|
1–2 Day (No Signature) | £2.95 | Tracked; 91% next-day before 1 p.m. | Photo/GPS proof confirms delivery; confirmed deliveries not eligible for replacement. |
1–2 Day (Signature) | £3.35 | Tracked; 91% next-day before 1 p.m. | Signature required. |
FREE on £50+
Service | Price | Speed | Notes |
---|---|---|---|
4–5 Day (No Signature) | Free | Tracked | Photo/GPS proof terms apply. |
4–5 Day (Signature) | Free | Tracked | Signature required. |
Northern Ireland
Service | Price | Speed | Notes |
---|---|---|---|
Free on £50+ | Free | 2–3 working days | Tracked |
Express (No Signature) | £1.99 | Next-day before 1 p.m. | Photo/GPS proof |
Express (Signature) | £2.49 | Next-day before 1 p.m. | Signature required |
Ireland
Service | Price | Speed | Notes |
---|---|---|---|
Free on £70+ | Free | 2–4 working days | Tracked; order before 1 p.m. |
Reduced Rate on £50+ | £2.99 | 1–2 working days | Parcelforce/GLS; tracked |
Express under £50 | £4.99 | Next-day before 1 p.m. | Tracked; Mon–Fri dispatch |
Standard under £50 | £4.99 | 1–2 working days | Parcelforce/GLS; tracked |
EU & International
Rates shown at checkout.
General Delivery Terms
- No Signature Required: By selecting this option you agree your parcel may be left at the delivery address or a designated safe location without a signature. Photographic and GPS proof from the courier confirms delivery. Claims of non-delivery will be investigated, but parcels confirmed delivered are not eligible for replacement.
- Signature Required: A signature will be obtained at delivery; choose this for added security.
- Same-day dispatch (express): Guaranteed for orders placed before 1 p.m. Courier delays can occasionally occur.
- Working days: Processing Mon–Sat (excl. Bank Holidays). Deliveries do not include Sundays unless stated by the service.
- Cut-off: Orders after 1 p.m. are processed the next working day.
Failed Delivery & Returns to Sender
If an order is returned due to customer error (e.g., failure to take delivery or arrange collection/redelivery), a re-shipping fee applies. Alternatively, a refund of the item price minus our shipping costs can be provided. If the error is ours, we will re-ship at our expense.
Questions about shipping?
For queries on shipping times and order status please email hello@nisupplements.com.
Nutrition & Internet Supplements Limited (trading as NI Supplements)Unit 5, Graham Industrial Park, Dargan Crescent, Belfast, Co Antrim, BT3 9LP, United Kingdom