Compare every Whey Isolate product across UK retailers on Suppio, ranked by true value - price per serving, not pack size. Prices refreshed daily.
Whey Isolate is a highly refined version of whey protein, which is one of the two main proteins found in cow milk. It is processed to remove most of the fats and lactose, which is the natural sugar found in dairy. This results in a product that is typically 90 percent or more pure protein.
It is used by people who want a fast-absorbing protein source to help build and repair muscles after exercise. Because the lactose and fat are removed, it is often a better choice for people who have a sensitivity to dairy or are following a strict low-calorie diet.
While both come from milk, standard whey protein (often sold as whey concentrate) is less refined than isolate.
| Feature | Whey Protein (Concentrate) | Whey Isolate |
|---|---|---|
| Protein Purity | Lower protein percentage | Higher protein percentage (90 percent or more) |
| Lactose Content | Contains more milk sugar | Very low lactose |
| Fat Content | Higher fat levels | Minimal fat |
| Digestion | Standard digestion speed | Faster absorption |
The process begins with liquid whey, which is a byproduct of making cheese. This liquid is put through a process called cross-flow microfiltration, where it is pushed through very fine filters that trap the fat and lactose while letting the protein pass through. The resulting concentrated protein is then dried into a fine powder using heat and air.
This product sits in a mid-range price bracket. It is more expensive than standard whey protein because the extra filtration steps required to remove the lactose and fat make the manufacturing process more complex and costly.
Suppio matches identical products across UK retailers by barcode, then ranks by price per active dose rather than sticker price. Value rankings only ever include listings Suppio has independently verified against the live retailer page - unverified data is shown on each product’s own page but excluded from ranking.
Prices across our retailer network are refreshed at least daily.
Suppio matches identical products across UK retailers by barcode, then ranks by price per active dose rather than sticker price. Value rankings only ever include listings Suppio has independently verified against the live retailer page - unverified data is shown on each product’s own page but excluded from ranking.
Prices across our retailer network are refreshed at least daily.
Related: Powder, Whey Protein, Muscle Gain, Single Serving, Sample / Trial Size