Protein · head-to-head
MyProtein Impact Whey vs Bulk Pure Whey.
Our independent head-to-head review of MyProtein Impact Whey Protein Powder and Bulk Pure Whey Protein, scored on value, protein density, macros and ingredient quality so you don't have to guess which to buy.


What a scoop actually contains

MyProtein Impact Whey Protein Powder
113 kcal · 30 g scoopProtein is 72% of the scoop
- Protein
- 21.6 g
- (72%)
- Carbs
- 2.7 g
- (9%)
- Fat
- 1.8 g
- (6%)
- Other
- 4.0 g
- (13%)

Bulk Pure Whey Protein
120 kcal · 32 g scoopProtein is 71% of the scoop
- Protein
- 22.7 g
- (71%)
- Carbs
- 4.8 g
- (15%)
- Fat
- 1.1 g
- (4%)
- Other
- 3.4 g
- (11%)
WheyWise verdict
MyProtein Impact Whey Protein Powder wins for most buyers.
Runner-upPrefer Bulk Pure Whey Protein? It is the second pick here, not a bad one - and Bulk stocks it.
- 72g protein per 100g - strong for a concentrate
- Lowest sale prices in the UK (often under £1.40/100g)
- 40+ flavour options - biggest range on the market
How the numbers stack up against the price
MyProtein Impact Whey Protein Powder and Bulk Pure Whey Protein are the two dominant budget whey concentrates in the UK, and choosing between them is the most common dilemma for price-conscious protein buyers. MyProtein Impact Whey Protein Powder delivers 72g of protein per 100g with a massive flavour catalogue of over 40 options, backed by near-constant discount codes that can push the price below £1.40/100g during major sales. Bulk Pure Whey Protein counters with 71g of protein per 100g and a reputation for more transparent pricing - no inflated RRPs, no discount code theatrics, just a straightforward price that rarely fluctuates.


Cost per 25g protein
Lower is better
Protein per scoop
Higher is better
Carbs per scoop
Lower is better
Fat per scoop
Lower is better
Protein density
Higher is better
WheyWise score
Out of 5
MyProtein Impact Whey Protein Powder takes the edge overall.
While both products deliver virtually identical protein content gram for gram, MyProtein's deeper sale prices and larger flavour range give it the advantage for most buyers. The constant discount codes are annoying to manage, but they consistently deliver the lowest per-100g price in the UK market. Bulk Pure Whey Protein is the better choice if you value pricing transparency and prefer a more natural-tasting shake - their vanilla and chocolate are widely praised as less artificial. But on pure value, MyProtein Impact Whey Protein Powder wins more often than not.
Where each one wins

WheyWise pick
Takes carbs per scoop, protein density and the WheyWise score.

Cheaper per serving of protein
Takes cost per 25g protein, protein per scoop and fat per scoop.
Neither of these quite right?
Answer five questions about your goal, budget and diet, and the Protein Finder ranks the whole range against them, with the reason each pick won.