Whey Protein Concentrate • Whey ISO-XP • Hydrolysed Whey
2.27kg | 67 Servings
Critical Whey Protein has been developed using a unique blend of Whey Protein Concentrate, Whey Protein Isolate & Hydrolysed Whey Protein. Whey Protein Concentrate is produced by Ultra-Filtration Technology containing high levels of Protein and Branched Chain Amino Acids (BCAAs). Whey Protein Isolate is the highest quality of Protein and is produced using Cross-Flow-Micro-Filtration. Hydrolysed Whey Protein is a pre-digested Protein enzymatically broken down into Peptides. These high biological value and easily digested Proteins support the growth and maintenance of muscle.
Critical Whey Protein provides 21g of Protein derived from Grass Fed Cows, 4.8g of naturally occurring BCAAs & 4g of Glutamine per serving. Critical Whey Protein is Gluten Free, Halal Certified, low in Sugar and makes a great tasting shake – just add to water or low-fat milk.
KEY BENEFITS
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Build & Maintain Muscle
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Delicious Taste & Mixes Instantly
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Gluten Free
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High Levels of Protein & BCAAs
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Batch Tested for Athletes by Informed-Sport
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Halal Certified Product
SUGGESTED USE
Mix 2 Scoops (30g) of protein powder with 250-500ml of water or milk and shake well. Consume immediately after training or throughout the day on non training days.
*Scoops are estimate only, weighing scales are recommended.
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