Which supplement store is cheapest?

Zumub: in a typical category its median sits 55 % below the market’s, measured over 19 categories where it has at least three products. At the other end is Holland & Barrett, 61 % above. Cheap is not the same as good: the table also shows how many products publish a lab report at each store.

How is the price index calculated?

In each category the store’s median is compared with the median of the whole market compared here, in that category’s unit (euros per kilo or per capsule). That gives a unitless percentage, and the index is the median of those percentages. Only categories where the store has three or more products count, so that a single deal cannot move a whole store’s index.

Why not add up each store’s prices?

Because a catalogue is not a basket: it is kilos of powder and capsules, and adding them gives a number that means nothing. Besides, a store that only sells creatine would look cheap next to one that sells everything. The index compares each category with its own, which is the only way the comparison is fair across different catalogues.

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Stores head to head · data from October 15, 2026

Which supplement store works out cheapest

The short answer. Zumub is the cheapest of the 16 compared: in a typical category it sits 55 % below the market median, with 190 products in 19 measurable categories. The dearest is Holland & Barrett, 61 % above. None wins at everything: the table shows in how many categories each is below and above.

Catalogues cannot be added up: one store sells kilos of protein and another omega 3 capsules. What can be compared is where each one sits within each category, as a percentage of the market median. The index in this table is the median of those positions, which is why it can be read from top to bottom.

† Some links are affiliate links — they do not change the ranking

Some store links are affiliate links: if you buy through them, this site may earn a commission at no extra cost to you. It changes nothing in the ranking: the score is computed beforehand and without reading those links, and products with no affiliate programme appear exactly the same. How it is calculated.

The 16 stores, from cheapest to dearest

Index: distance from the market median

Supplement stores compared by price index, with prices from October 15, 2026
Store	Index	Categories	Products	With lab report
ZumubSpreads its catalogue across 14 brands. 35 % of its product pages declare additives.	-55 %below the market	1916 cheaper · 2 dearer	190	44 at level 4
HSNSpreads its catalogue across 8 brands. 37 % of its product pages declare additives.	-43 %below the market	2625 cheaper · 0 dearer	179	254 at level 4
AmazonSpreads its catalogue across 466 brands. 0 % of its product pages declare additives.	-6 %below the market	3012 cheaper · 1 dearer	1600	33 at level 4
QuamtraxSells only its own brand. 3 % of its product pages declare additives.	-5 %below the market	51 cheaper · 1 dearer	30	11 at level 4
MyproteinSpreads its catalogue across 3 brands. 74 % of its product pages declare additives.	-1 %below the market	126 cheaper · 2 dearer	196	33 at level 4
DosFarmaSpreads its catalogue across 105 brands. 7 % of its product pages declare additives.	0 %right on the market	3912 cheaper · 14 dearer	443	33 at level 4
VitOBestSpreads its catalogue across 2 brands. 0 % of its product pages declare additives.	0 %right on the market	93 cheaper · 4 dearer	64	00 at level 4
Life ProSpreads its catalogue across 4 brands. 2 % of its product pages declare additives.	+7 %above the market	71 cheaper · 2 dearer	61	33 at level 4
iO.GENIXSells only its own brand. 0 % of its product pages declare additives.	+9 %above the market	81 cheaper · 3 dearer	49	00 at level 4
NutritiendaSpreads its catalogue across 25 brands. 0 % of its product pages declare additives.	+12 %above the market	102 cheaper · 5 dearer	62	00 at level 4
ProzisSells only its own brand. 0 % of its product pages declare additives.	+13 %above the market	104 cheaper · 6 dearer	96	22 at level 4
BulevipSpreads its catalogue across 60 brands. 21 % of its product pages declare additives.	+19 %above the market	243 cheaper · 13 dearer	202	44 at level 4
Tienda CulturistaSpreads its catalogue across 3 brands. 0 % of its product pages declare additives.	+24 %above the market	50 cheaper · 4 dearer	53	22 at level 4
USA FitnessSpreads its catalogue across 28 brands. 0 % of its product pages declare additives.	+24 %above the market	90 cheaper · 7 dearer	70	11 at level 4
PromoFarmaSpreads its catalogue across 232 brands. 2 % of its product pages declare additives.	+27 %above the market	471 cheaper · 31 dearer	641	11 at level 4
Holland & BarrettSpreads its catalogue across 9 brands. 69 % of its product pages declare additives.	+61 %above the market	122 cheaper · 9 dearer	96	00 at level 4

The index is not a discount. It says where that store’s median sits within each category, not what you will pay for a specific product: a store that is dear overall can have the cheapest tub in a category, and that happens often. For buying, the category tables rule; this page is for choosing where to start looking. Left out: Sotya, 226ERS, Crown Sport Nutrition. They have products in too few categories and their median cannot be compared with anything.

Head to head: 105 comparisons

Two stores, category by category

Questions about the stores

Answered with the data on this page

Which supplement store is cheapest?: Zumub: in a typical category its median sits 55 % below the market’s, measured over 19 categories where it has at least three products. At the other end is Holland & Barrett, 61 % above. Cheap is not the same as good: the table also shows how many products publish a lab report at each store.
How is the price index calculated?: In each category the store’s median is compared with the median of the whole market compared here, in that category’s unit (euros per kilo or per capsule). That gives a unitless percentage, and the index is the median of those percentages. Only categories where the store has three or more products count, so that a single deal cannot move a whole store’s index.
Why not add up each store’s prices?: Because a catalogue is not a basket: it is kilos of powder and capsules, and adding them gives a number that means nothing. Besides, a store that only sells creatine would look cheap next to one that sells everything. The index compares each category with its own, which is the only way the comparison is fair across different catalogues.