63 bought·Various · 5kg
21g
89
0.7g
92
£0.36per 25g protein
£59.99 bag·1 retailer
Myprotein vs Bulk
Myprotein vs Bulk: Price Comparison 2026
Myprotein vs Bulk head-to-head across every product, ranked by cost per 25g protein. Live UK pricing, updated weekly across both brands.
54 products tracked98+ retailersWeekly updates
Showing 54 myprotein vs bulk products
Quick filters
CHEAPEST
Vegan5kg
63 bought this week
79 bought·Chocolate Smooth · 1kg
21g
90
0.4g
87
£0.36per 25g protein
£11.99 bag·1 retailer
TRENDING
Vegan1kg
79 bought this week
84 bought·Various · 5kg
19.5g
95
1g
92
£0.38per 25g protein
£59.99 bag·1 retailer
TRENDING
Vegan5kg
84 bought this week
Various · 2.5kg
19g
97
0.7g
89
£0.41per 25g protein
£30.99 bag·1 retailer
Vegan2.5kg
Chocolate Smooth · 5kg
21g
90
0.4g
91
£0.41per 25g protein
£69.49 bag·1 retailer
Vegan5kg
Various · 2.5kg
20g
94
1g
87
£0.42per 25g protein
£33.99 bag·1 retailer
● Trending
Vegan2.5kg
91 bought·Basic Strawberry Up To Per Sugar Absorbing Gym Supplement Supports Muscle Growth · 2.5kg
18g
95
3g
73
£0.46per 25g protein
£32.99 bag·1 retailer
CHEAPEST
Whey concentrate2.5kg
91 bought this week
Basic Chocolate Up To Per Sugar Absorbing Gym Supplement Supports Muscle Growth · 1.25kg
18g
95
3g
69
£0.47per 25g protein
£16.99 bag·1 retailer
Whey concentrate1.25kg
Strawberry Shortcake · 5kg
14.8g
89
3g
72
£0.49per 25g protein
£57.99 bag·1 retailer
Whey concentrate5kg
Chocolate Peanut · 500g
17.3g
91
1.1g
87
£0.51per 25g protein
£7.00 bag·1 retailer
Vegan500g
Banana · 2.5kg
17.5g
90
0.8g
88
£0.51per 25g protein
£35.99 bag·1 retailer
Vegan2.5kg
Chocolate Peanut Caramel · 5kg
18g
98
1.7g
91
£0.52per 25g protein
£75.49 bag·1 retailer
● Trending
Vegan5kg
My Chocolate · 1kg
17.5g
90
0.8g
87
£0.56per 25g protein
£15.81 bag·1 retailer
● Trending
Vegan1kg
My Chocolate · 1kg
17.5g
90
0.8g
88
£0.56per 25g protein
£15.81 bag·1 retailer
● Trending
Vegan1kg
68 bought·Chocolate · 2.5kg
20g
93
1g
76
£0.58per 25g protein
£46.49 bag·1 retailer
CHEAPEST
Casein2.5kg
68 bought this week
Vanilla · 2.5kg
16.3g
107
0.9g
68
£0.62per 25g protein
£39.99 bag·1 retailer
● Trending
Whey concentrate2.5kg
66 bought·Collagen Bcaas Absorption Supports Muscle Growth Refreshing Flavoured Lemon Iced Tea · 800g
22.5g
90
0.5g
75
£0.68per 25g protein
£19.52 bag·1 retailer
CHEAPEST● Trending
Clear whey800g
66 bought this week
White Chocolate · 5kg
17.8g
95
3.8g
70
£0.70per 25g protein
£99.99 bag·1 retailer
● Trending
Whey concentrate5kg
Chocolate · 5kg
20.5g
89
0.8g
78
£0.73per 25g protein
£120.49 bag·1 retailer
HIGHEST PROTEIN %
Casein5kg
Mocha · 5kg
18g
96
2.2g
73
£0.75per 25g protein
£108.49 bag·1 retailer
● Trending
Whey concentrate5kg
Natural Chocolate (Informed Sport) · 1kg
18.5g
96
1.8g
73
£0.84per 25g protein
£24.99 bag·1 retailer
● Trending
Whey concentrate1kg
Protein Shake · 2.5kg
20g
93
1g
76
£0.85per 25g protein
£67.99 bag·1 retailer
Casein2.5kg
75 bought·Chocolate Smooth · 1kg
19.8g
89
1g
84
£0.87per 25g protein
£27.57 bag·1 retailer
CHEAPEST● Trending
Whey isolate1kg
75 bought this week
Unflavoured · 2.5kg
19.2g
92
0.9g
68
£0.89per 25g protein
£67.99 bag·1 retailer
Whey concentrate2.5kg
Browse All Myprotein & Bulk Products (54)
Myprotein vs Bulk: The Breakdown
Myprotein and Bulk are the two biggest budget protein brands in the UK. Both sell direct, both run frequent sales, and both have a loyal following. The question everyone asks is simple: which one is actually cheaper?
This page answers that with data, not opinions. Every product from both brands is listed below with live UK pricing, normalised to cost per 25g of protein so you can compare fairly regardless of bag size. The summary below shows how the two brands stack up right now.
Prices are checked weekly. The cheapest brand can change depending on current sales and discount codes - check back regularly or use the comparison grid to find today's best deal.
Shop by goal
Pick a target, see the shortlist.
Brand battles
Two brands, one clear winner.
Myprotein vs Bulk
The UK's two biggest DTC brands, head-to-head
ON vs Myprotein
Premium global vs budget UK favourite
Myprotein vs Protein Works
Impact Whey vs Whey 80, cheapest per 25g
Power users
Advanced comparison: every product, filteredDense table view with every product, full filter sidebar, and no editorial surfaces.
Methodology
How we rank every bag.
Independent, transparent, and updated weekly. Here's what goes into each score.
01
Cost normalised to £/25g
Every bag divided by its true protein weight, so you see the real cost of a scoop across any size or brand.
02
Protein quality, not just %
Protein %, leucine and digestibility feed the Performance score. A 90% isolate and a 90% vegan blend are not the same.
03
Clean-label audit
Ingredient count, artificial sweeteners, added sugars, third-party certifications. 0 to 100 score.
04
Social and review signals
Weekly purchase volume and weighted review scores surface what people actually re-buy, not just what ranks on search.
Questions, answered.
It depends on the specific product and timing. Myprotein runs near-constant sales which can make their headline prices look cheaper, but Bulk's standard pricing is often competitive without needing a discount code. The summary stats on this page show the current average across all products from both brands.
Both brands use similar manufacturing processes and ingredient sources. Independent lab tests generally show comparable protein content to what is stated on the label. The main differences are in flavour range (Myprotein has more options), customer service (Bulk is generally rated higher), and pricing strategy (Myprotein relies on discounts, Bulk on stable pricing).
54 results