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HSN or PromoFarma for casein: which is better value per kg

The short answer. For casein, HSN lists 9 products and PromoFarma another 13. By price per kg, HSN’s median is €22.00/kg and PromoFarma’s is €41.40/kg. The highest scoring across both catalogues is HSN Sport Series Evocasein 2.0 (caseína micelar + DigeZyme®) 2Kg from HSN, with 83 out of 100 at €15.99/kg. Neither has products at verification level 4: for casein the ceiling today is a lab report published by the brand itself, and that is not a certification.

Both stores measured on the same criterion: price per kg and certification verification level. There is no overall winner because there isn’t one: one can win on price and the other on certification, and here you see both separately.

† 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.

Both stores at a glance

HSN

9 casein products

€22.00/kgmedian

From €15.99/kg to €27.48/kg. 0 at verification level 4 and 0 at level 3.

Its best score: HSN Sport Series Evocasein 2.0 (caseína micelar + DigeZyme®) 2Kg, 83/100 at €15.99/kg.

PromoFarma

13 casein products

€41.40/kgmedian

From €31.98/kg to €68.09/kg. 0 at verification level 4 and 0 at level 3.

Its best score: Biotechusa Micellar Casein Sabor Chocolate 2270 g, 63/100 at €31.98/kg.

HSN against PromoFarma, figure by figure

The same numbers for both

HSN and PromoFarma for casein, with prices from October 15, 2026
FigureHSNPromoFarma
Products compared913
Median per kg€22.00/kg€41.40/kg
Cheapest per kg€15.99/kg€31.98/kg
Dearest per kg€27.48/kg€68.09/kg
Best score8363
Level 4 (certification backed by a third party)0 of 90 of 13
Level 3 (the brand’s own lab report)0 of 90 of 13

The median is not the price you will pay. It is the midpoint of that store’s catalogue in this category, and it tells you whether a store is dear or cheap overall. For buying, the specific row in the table below is what counts.

What each tub contains

Median dose per serving

Price per kilo does not tell you how much active ingredient is inside the kilo. This table does: for each ingredient, the median dose per serving at each store and how many products reach the dose backed by studies (the same reference this site scores with).

Ingredients and dose per serving at HSN and PromoFarma, for casein
IngredientHSNPromoFarma
Casein proteinEvidence-backed dose: from 20 g per serving29.4 g9 of 9 contain it · 9 reach the dose—13 of 13 contain it · none publishes the dose

The dose is per serving, not per tub. A big tub with a short dose forces you to take two scoops to get the same, and then it lasts half as long: that is why the price per dose in the next section does not match the price per kilo.

Why one is cheaper than the other

Factor by factor, with both stores’ data

PromoFarma costs 88 % more per kg than HSN (€41.40/kg against €22.00/kg, medians of both catalogues). That difference does not come out of nowhere. These are the data that explain it, with each store’s figure alongside: pack size (median), different brands in the catalogue, products with declared additives.

Where the price difference between HSN and PromoFarma for casein comes from
FactorHSNPromoFarma
Cost of one effective dosePrice per kg and price per dose point to the same store, so the dose does not erase the label difference: HSN is cheaper both ways.€0.500€1.035
Pack size (median)PromoFarma sells bigger packs, and a big pack spreads the same tub, the same label and the same shipping over more kilos. Part of the price gap per kg is this and not a discount: comparing one store’s small pack with the other’s large one inflates the gap.500 g908 g
Different brands in the catalogueHSN mostly sells one brand, HSN Raw Series: 56 % of its catalogue in this category. PromoFarma spreads its own across 7 brands. A store selling its own brand skips the manufacturer’s margin and can cut the price without touching the formula; a reseller pays that margin and passes it on, and in exchange carries brands the other does not sell.2 (56 % HSN Raw Series)7 (23 % Biotech)
Products with declared additivesWhat the pages of both declare: colourings, artificial sweeteners. An additive is not fraud, but it takes up grams that are not active ingredient and is cheaper than the active ingredient: where more additive is declared, the price per kg drops without the product being better.44 %0 %
Median rating at the storeBased on 6,068 reviews at HSN and 1 at PromoFarma. These are the store’s own ratings, which is judge and party: they help spot a product that arrives damaged or tastes awful, not decide which formula is better.4.7/54/5

None of these factors is an accusation. They are medians of what each store publishes on its pages on the day prices were collected: where a page does not declare a figure, that store does not count in that row instead of counting as a zero. A specific product can contradict its store’s median, and that is what the full table is for. How all of this is calculated.

All 22 products from both stores

Filter by store to see only one

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Products sorted by score (recommended)
#ProductStore
01
HSN Sport Series Evocasein 2.0 (caseína micelar + DigeZyme®) 2Kg · 17 flavours4.7 (2304) · 87 % active · 5/5 requirementslowest seenBest value
HSNfree delivery€31.99€15.99 /kg€18.38 /kg of protein83
02
HSN Raw Series Caseína micelar 2Kg4.7 (363) · 90 % active · 2/2 requirements
HSNfree delivery€39.00€19.50 /kg€21.67 /kg of protein78
03
HSN Raw Series Caseína nativa (Lacprodan® MicelPure™) 2Kg4.8 (38) · 93 % active · 5/5 requirements
HSNfree delivery€43.99€22.00 /kg€23.66 /kg of protein77
04
HSN Sport Series Evonative casein (Lacprodan® MicelPure™) 2Kg · 7 flavours4.7 (283) · 86 % active · 5/5 requirementslowest seen
HSNfree delivery€42.99€21.50 /kg€25.00 /kg of protein74
05
HSN Raw Series Caseinato de calcio 500g4.7 (92) · 96 % active · 3/5 requirements
HSN+€3.99 delivery€12.99€25.98 /kg€27.06 /kg of protein67
06
Biotech Biotechusa Micellar Casein Sabor Chocolate 2270 g4.0 (1) · 1/1 requirements
PromoFarma€72.59€31.98 /kg≈ €39.98 /kg of protein63
07
ASN Premium Micellar Casein Brownie 1 Kg · 2 flavours · 1/1 requirements
PromoFarma€32.50€32.50 /kg≈ €40.62 /kg of protein63
08PromoFarma€36.59€40.30 /kg≈ €50.37 /kg of protein59
09PromoFarma€46.19€46.19 /kg≈ €57.74 /kg of protein55
10PromoFarma€38.32€51.09 /kg≈ €63.86 /kg of protein54
11
PWD Casein Protein Meal Brownie 450 g · 2 flavours
PromoFarma€23.79€52.87 /kg≈ €66.09 /kg of protein54
12PromoFarma€40.24€53.65 /kg≈ €67.06 /kg of protein54
13
PWD Casein Protein Meal Yogur Limón 1500 g · 0/1 requirementspricey now
PromoFarma€61.14€40.76 /kg≈ €50.95 /kg of protein53
14
Biotech Nutricosmetics World Biotech Usa Casein Zero Vainilla 908 g · 0/1 requirements
PromoFarma€37.50€41.30 /kg≈ €51.62 /kg of protein52
15PromoFarma€122.56€68.09 /kg≈ €85.11 /kg of protein51

22 products in this table

Questions about HSN and PromoFarma for casein

Answered with the data on this page

HSN or PromoFarma for casein?
On price per kg, HSN: its median is €22.00/kg against €41.40/kg at PromoFarma, which is 88 % dearer. The median does not decide on its own: most of the rest of the mark is certification, and there HSN has 0 products at level 4 and PromoFarma has 0.
Which is the cheapest casein across the two stores?
HSN Sport Series Evocasein 2.0 (caseína micelar + DigeZyme®) 2Kg from HSN, at €15.99/kg (2000 g pack for €31.99), at verification level 1 out of 4.
Why don’t HSN and PromoFarma cost the same?
PromoFarma costs 88 % more per kg than HSN (€41.40/kg against €22.00/kg, medians of both catalogues). That difference does not come out of nowhere. These are the data that explain it, with each store’s figure alongside: pack size (median), different brands in the catalogue, products with declared additives. Price per kg and price per dose point to the same store, so the dose does not erase the label difference: HSN is cheaper both ways. PromoFarma sells bigger packs, and a big pack spreads the same tub, the same label and the same shipping over more kilos. Part of the price gap per kg is this and not a discount: comparing one store’s small pack with the other’s large one inflates the gap.
Which of the two stores scores better?
HSN Sport Series Evocasein 2.0 (caseína micelar + DigeZyme®) 2Kg from HSN, with 83 out of 100. The score is 35 % price per kg against the cheapest in the category, 35 % verifiable quality (certification, purity and additives), 20 % the category's own requirements and 10 % the buyers' rating at the store, and it is computed without looking at affiliate links. Prices from October 15, 2026.

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