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PromoFarma or Prozis: which is cheaper across 10 categories
PromoFarma46Prozisacross 10 categories both of them sell
The short answer. Of the 10 categories both sell, PromoFarma has the lower median in 4 and Prozis in 6. Across the whole catalogue, Prozis sits 13 % above the market median and PromoFarma 27 % above.
No store is cheap at everything. This page does not name a winner: it gives each one’s median in every category they share, so you can see where each wins and by how much. Prices are from the last collection and change; catalogue and certification change far less.
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Category by category
Each store’s median, in its unit
| Category | PromoFarma | Prozis | Difference |
|---|---|---|---|
| BCAA13 products from PromoFarma and 4 from Prozis. | €61.72/kg+3 % vs market | €83.30/kg+39 % vs market | 35 %cheaper: PromoFarma |
| Casein13 products from PromoFarma and 4 from Prozis. | €41.40/kg+2 % vs market | €32.99/kg-19 % vs market | 25 %cheaper: Prozis |
| Collagen14 products from PromoFarma and 5 from Prozis. | €101.30/kg+69 % vs market | €67.96/kg+13 % vs market | 49 %cheaper: Prozis |
| Creatine15 products from PromoFarma and 9 from Prozis. | €67.00/kg+12 % vs market | €116.63/kg+95 % vs market | 74 %cheaper: PromoFarma |
| Weight gainers13 products from PromoFarma and 5 from Prozis. | €26.00/kg+37 % vs market | €16.53/kg-13 % vs market | 57 %cheaper: Prozis |
| Glutamine15 products from PromoFarma and 5 from Prozis. | €88.27/kg+48 % vs market | €49.97/kg-16 % vs market | 77 %cheaper: Prozis |
| Omega 313 products from PromoFarma and 13 from Prozis. See the full head to head. | €0.487/capsule+114 % vs market | €0.142/capsule-38 % vs market | 243 %cheaper: Prozis |
| Whey protein isolate12 products from PromoFarma and 18 from Prozis. | €58.91/kg-2 % vs market | €75.54/kg+26 % vs market | 28 %cheaper: PromoFarma |
| Vegan protein14 products from PromoFarma and 4 from Prozis. | €42.12/kg+51 % vs market | €31.41/kg+12 % vs market | 34 %cheaper: Prozis |
| Whey protein (concentrate)15 products from PromoFarma and 22 from Prozis. | €50.32/kg+11 % vs market | €55.12/kg+22 % vs market | 10 %cheaper: PromoFarma |
The median is not the price you will pay. It is the midpoint of that store’s catalogue in that category: it tells you where to start looking, not what to buy. That is what each category table is for, where the specific row counts.
Both stores, figure by figure
What is not today’s price
| Figure | PromoFarma | Prozis |
|---|---|---|
| Price indexMedian distance from the market median in the categories where it has three products or more. Negative is cheap. | +27 % | +13 % |
| Categories comparedAcross the whole site, in how many it has enough catalogue to be measured. | 47 | 10 |
| Products comparedThe ones this site collects from that store, not its whole catalogue. | 641 | 96 |
| Brands in the catalogueA single brand means own brand (no manufacturer margin); many means reselling. | 232 | 1 |
| With lab reportLevel 3 or 4: testing a batch costs money and is passed on in the price. | 1 of 641 | 2 of 96 |
| Product pages declaring additivesAn additive takes up grams that are not active ingredient and is cheaper than it. | 2 % | 0 % |
| Median rating at the storeBased on 3,011 and 47 reviews published by the stores themselves, which are judge and party. | 5.0/5 | 4.6/5 |
Questions about PromoFarma and Prozis
Answered with the data on this page
- PromoFarma or Prozis?
- Of the 10 categories both sell, PromoFarma has the lower median in 4 and Prozis in 6. Across the whole catalogue, Prozis sits 13 % above the market median and PromoFarma 27 % above. Price is not everything: PromoFarma publishes lab reports on 1 products and Prozis on 2.
- In which categories does each one win?
- PromoFarma is cheaper in bcaa, creatine, whey protein isolate, whey protein (concentrate). Prozis is cheaper in casein, collagen, weight gainers, glutamine, omega 3, vegan protein. These are medians of each catalogue in each category’s unit, with prices from October 15, 2026.
- Which catalogue is bigger?
- PromoFarma has 641 products compared here across 49 categories and Prozis 96 across 15. PromoFarma spreads its catalogue across 232 brands and Prozis only its own: a store selling its own brand skips the manufacturer’s margin, a reseller pays it and in exchange carries brands the other does not.
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