All Products

Cheapest Whey Isolate Protein Powder UK

Whey isolate undergoes additional filtering to remove most fat and lactose, resulting in 90%+ protein content. It costs more than concentrate but offers a purer protein source with fewer calories per serving. Compare current UK prices below.

Showing 723 whey isolate products across UK retailers — prices updated daily

UK Protein Powder Price Comparison

723 products tracked across major UK retailers • 723 with live prices right now

Filter Protein Powder by Brand, Type, and Size

723 products found

Sorted by: Price / 100g

Frequently Asked Questions

What is the difference between whey concentrate and whey isolate?

Whey concentrate contains 70-80% protein with some fat and lactose. Whey isolate is filtered further to 90%+ protein with minimal fat and lactose, making it better for those who are lactose intolerant or want a leaner protein source.

Is whey isolate worth the extra cost?

It depends on your goals. If you need higher protein per serving, are lactose intolerant, or are on a calorie-restricted diet, the extra cost can be worthwhile. For general use, whey concentrate offers better value per gram of protein.