Which is the cheapest whey isolate?

Bulk Whey Protein Isolate, Sin sabores añadidos, 1 kg from Amazon, at €26.99/kg (1000 g pack for 26,99 €). It sits at verification level 1 out of 4. Cheap is not the same as well scored: price is 35 % of the mark and most of the rest is how verifiable its certification is.

How much does a kilo of whey isolate cost?

Between €26.99/kg and €93.30/kg across the 14 stores compared, with a median of €59.94/kg. That is the price per kg, not per pack: two tubs at the same price can cost twice as much as each other depending on what is inside.

What certification should whey isolate have?

Of the 182 products compared, 0 reach level 4 (the certification is backed by a third party: either we checked it with the body that issues it, or the product carries in its name a trademark that requires a third party behind it, such as Creapure or IFOS) and 2 reach level 3 (a lab report published by the brand itself). The remaining 180 stop at a certification claimed on the product page, or none at all. Only level 4 is checked against whoever issues the certification.

How much whey isolate should you take a day?

The reference dose this site uses for whey isolate is 20 g - 40 g a day, with strong evidence. Source: Jager R et al. ISSN position stand: protein and exercise. J Int Soc Sports Nutr. 2017;14:20. Dosis de 20-40 g de proteina por toma para maximizar la sintesis proteica muscular.. That is the dose of the ingredient in the study cited, not a recommendation for you nor a claim about any product in the table.

Home / Whey protein isolate

Which whey isolate should you buy · data from October 15, 2026

The best whey isolate of 2026

The same whey protein as regular whey, filtered more times: more protein per kilo and almost no lactose or fat. In the muscle it does the same.

from €26.99/kgmedian €59.94up to €93.30/kg

What whey isolate does, at what dose and on what evidence

† 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.

Cheapest per kg of protein and best value for money

Bulk Whey Protein Isolate, Sin sabores añadidos, 1 kg

€26.99/kgNo third-party seal

€30.67 per kg of protein: the cheapest of those that meet the category's requirements and are not underdosed.

Score 83 out of 100: the highest mark, with 35 % of the weight on price per kg.

At Amazon · see how its score breaks down

Full comparison

182

products compared

from €26.99 to €93.30

per kg

at verified level 4

Filter and sort

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Products sorted by score (recommended)
#	Product	Store
01	Bulk Whey Protein Isolate, Sin sabores añadidos, 1 kgBest value	Amazonfree delivery from €35	€26.99	€26.99 /kg≈ €30.67 /kg of protein	83
02	HSN Sport Series Evolate 2.0 (whey isolate CFM) 2KgBrand lab report · 18 flavours4.7 (6913) · 90 % active · 5/5 requirementsgood price	HSNfree delivery	€80.99	€40.49 /kg€44.99 /kg of protein	80
	HSN Sport Series Evolate 2.0 (whey isolate CFM) 500gBrand lab report · 24 flavours4.7 (6913) · 90 % active · 5/5 requirements	HSN+€3.99 delivery	€20.99	€41.98 /kg€46.64 /kg of protein	79
03	ALPHAPOWER FOOD CFM Whey Isolate 2kg	Amazonfree delivery	€59.98	€29.99 /kg≈ €34.08 /kg of protein	80
04	Paleobull Aislado Proteina Valquiria 750 Gr5.0 (2) · 4/4 requirements	Bulevipfree delivery from €40	€23.95	€31.93 /kg≈ €36.28 /kg of protein	79
05	Vitobest Milk Protein Isolate 80 · 1/1 requirements	VitOBestfree delivery	€33.30	€33.30 /kg≈ €37.84 /kg of protein	77
	Vitobest Milk Protein Isolate 90 · 1/1 requirements	VitOBestfree delivery	€40.50	€40.50 /kg≈ €46.02 /kg of protein	72
06	MUSCLE MASTER Iso Master Whey Protein Isolate 900g	Amazonfree delivery from €35	€29.99	€33.32 /kg≈ €37.86 /kg of protein	77
07	– Proteína Aislada de Suero Premium (Whey Isolate) · 2 kg	Amazonfree delivery	€67.69	€33.84 /kg≈ €38.45 /kg of protein	76
08	Mega Isolate Concept 2 Kg4.4 (8) · 4/4 requirements	Bulevipfree delivery	€70.59	€35.30 /kg≈ €40.11 /kg of protein	76
	Mega Isolate Concept 1 Kg4.5 (2) · 4/4 requirements	Bulevipfree delivery from €40	€36.49	€36.49 /kg≈ €41.47 /kg of protein	75
	Mega Plus Isolate Concept Chocolate 2 kgpricey now	PromoFarma	€87.00	€43.50 /kg≈ €49.43 /kg of protein	70
	Mega Plus Isolate Concept Chocolate y Plátano 1000 g · 1/1 requirementspricey now	PromoFarma	€45.85	€45.85 /kg≈ €52.10 /kg of protein	69
09	HSN Raw Series 100% Whey protein isolate 2Kg4.8 (2175) · 93 % active · 5/5 requirements	HSNfree delivery	€80.99	€40.49 /kg€43.54 /kg of protein	75
10	Zumub 100% Whey Aislada 4kg (2x 2kg) · 8 flavours4.5 (2621) · 1/1 requirements	Zumubfree delivery	€148.98	€37.24 /kg≈ €42.32 /kg of protein	74
	Zumub 100% Whey Aislada 2kg · 8 flavours4.5 (2621) · 1/1 requirements	Zumubfree delivery	€75.97	€37.98 /kg≈ €43.16 /kg of protein	74
	Zumub 100% Whey Aislada 1kg · 8 flavours4.5 (2621) · 1/1 requirements	Zumubfree delivery	€38.90	€38.90 /kg≈ €44.20 /kg of protein	73
	Zumub 100% Whey Aislada 500g · 8 flavours4.5 (2621) · 1/1 requirements	Zumub+€2.99 delivery	€19.98	€39.96 /kg≈ €45.41 /kg of protein	72
11	Ultimate Isolated Soya Protein Cacao 750 g	PromoFarma	€27.90	€37.20 /kg≈ €42.27 /kg of protein	74
12	PBN Proteína Whey Isolate, Chocolate, 2.27kg	Amazonfree delivery	€86.99	€38.32 /kg≈ €43.55 /kg of protein	73
13	Mega Plus Isolat Competitition Chocolate 2 Kg · 1/1 requirements	DosFarmafree delivery	€79.99	€39.99 /kg≈ €45.44 /kg of protein	73
14	Whey Protein Pulver (chocolate) · 2,3 kg	Amazonfree delivery	€89.99	€39.13 /kg≈ €44.47 /kg of protein	72
15	Proteína Isolate Concept · 1 kg	Amazonfree delivery	€39.46	€39.46 /kg≈ €44.84 /kg of protein	72
16	Hivital Proteína Aislada Isolada 990 gr · 1/1 requirements	DosFarma+€3.99 delivery	€39.99	€40.39 /kg≈ €45.90 /kg of protein	72
17	iO.GENIX MILK PROTEIN ISOLATE 100%	iO.GENIXfree delivery	€79.01	€39.51 /kg≈ €44.90 /kg of protein	72
18	– Proteína Aislada de Suero Premium (Whey Isolate) · 1 kg	Amazonfree delivery	€39.90	€39.90 /kg≈ €45.34 /kg of protein	72
19	Zumub Zero Whey Isolate 4kg (2x 2kg) · 3 flavours4.5 (246) · 3/4 requirements	Zumubfree delivery	€149.99	€37.50 /kg≈ €42.61 /kg of protein	70
	Zumub Zero Whey Isolate 2kg · 3 flavours4.5 (246) · 3/4 requirements	Zumubfree delivery	€76.98	€38.49 /kg≈ €43.74 /kg of protein	70
	Zumub Zero Whey Isolate 1kg · 3 flavours4.5 (246) · 3/4 requirements	Zumubfree delivery	€39.99	€39.99 /kg≈ €45.44 /kg of protein	69
	Zumub Zero Whey Isolate 500g · 3 flavours4.5 (246) · 3/4 requirements	Zumub+€2.99 delivery	€20.98	€41.96 /kg≈ €47.68 /kg of protein	68
20	Proteina Whey Isolate Proteina Aislada En Polvo Con BCAA L	Amazonfree delivery	€38.95	€42.94 /kg≈ €48.80 /kg of protein	70
21	Pure Whey Isolate 84% proteína+Colágeno	Amazonfree delivery	€39.95	€44.39 /kg≈ €50.44 /kg of protein	70
22	Paleobull Panacea - Aislado de Proteína de Suero de Leche 750 Gr4.6 (10) · 4/4 requirements	Bulevipfree delivery from €40	€35.62	€47.49 /kg≈ €53.97 /kg of protein	69
	Paleobull Panacea - Aislado De Proteína De Suero De Leche 350 Gr5.0 (1) · 4/4 requirements	Bulevipfree delivery from €40	€20.21	€57.74 /kg≈ €65.61 /kg of protein	66
23	SPORT LIVE Whey protein isolate · 2,2 kg · 4 flavours	Amazonfree delivery	€98.90	€44.95 /kg≈ €51.08 /kg of protein	69
24	Scitec Nutrition 100% Aislado de Whey 1816g · 10 flavours4.5 (179) · 4/4 requirements	Zumubfree delivery	€83.90	€46.20 /kg≈ €52.50 /kg of protein	69
	Scitec Nutrition 100% Aislado de Whey 700 g · 4 flavours4.5 (179) · 4/4 requirements	Zumubfree delivery	€41.50	€59.29 /kg≈ €67.38 /kg of protein	65
25	Scitec Nutrition 100% Whey Isolate · 1,816 kg	Amazonfree delivery	€83.90	€46.20 /kg≈ €52.50 /kg of protein	69
26	Quamtrax Direct WHEY PROTEIN ISOLATE4.4 (35)	Nutritiendafree delivery	€92.90	€46.45 /kg≈ €52.78 /kg of protein	68
27	Myprotein Impact Whey Isolate 2.88kg · 2 flavours4.5 (954) · 4/4 requirements	Myproteinfree delivery	€136.99	€47.57 /kg≈ €54.06 /kg of protein	68
	Myprotein Impact Whey Isolate 2.79kg · 2 flavours4.5 (954) · 4/4 requirements	Myproteinfree delivery	€136.99	€49.10 /kg≈ €55.80 /kg of protein	68
	Myprotein Impact Whey Isolate 990g · 2 flavours4.5 (954) · 4/4 requirements	Myprotein+€5.99 delivery	€49.99	€50.49 /kg≈ €57.38 /kg of protein	67
	Myprotein Impact Whey Isolate 960g · 2 flavours4.5 (954) · 4/4 requirements	Myprotein+€5.99 delivery	€49.99	€52.07 /kg≈ €59.17 /kg of protein	67
	Myprotein Impact Whey Isolate 4.5kg - 150raciones Brownie de Chocolate4.5 (954) · 4/4 requirements	Myproteinfree delivery	€239.99	€53.33 /kg≈ €60.60 /kg of protein	66
	Myprotein Impact Whey Isolate 930G · 2 flavours4.5 (954) · 4/4 requirements	Myprotein+€5.99 delivery	€49.99	€53.75 /kg≈ €61.08 /kg of protein	66
	Myprotein Impact Whey Isolate 2.7kg - 90raciones Brownie de Chocolate · 5 flavours4.5 (954) · 4/4 requirements	Myproteinfree delivery	€149.99	€55.55 /kg≈ €63.12 /kg of protein	66
	Myprotein Impact Whey Isolate 4.2kg · 2 flavours4.5 (954) · 4/4 requirements	Myproteinfree delivery	€239.99	€57.14 /kg≈ €64.93 /kg of protein	65
	Myprotein Impact Whey Isolate 900G - 30raciones Chocolate Natural · 5 flavours4.5 (954) · 4/4 requirements	Myprotein+€5.99 delivery	€51.99	€57.77 /kg≈ €65.65 /kg of protein	65
	Myprotein Impact Whey Isolate 4.05kg · 3 flavours4.5 (954) · 4/4 requirements	Myproteinfree delivery	€239.99	€59.26 /kg≈ €67.34 /kg of protein	65
	Myprotein Impact Whey Isolate 2.52kg · 2 flavours4.5 (954) · 4/4 requirements	Myproteinfree delivery	€149.99	€59.52 /kg≈ €67.64 /kg of protein	64
	Myprotein Impact Whey Isolate 465g · 2 flavours4.5 (954) · 4/4 requirements	Myprotein+€5.99 delivery	€27.99	€60.19 /kg≈ €68.40 /kg of protein	64
	Myprotein Impact Whey Isolate 3.9kg - 150raciones Fresa Natural4.5 (954) · 4/4 requirements	Myproteinfree delivery	€239.99	€61.54 /kg≈ €69.93 /kg of protein	64
	Myprotein Impact Whey Isolate 2.43kg · 2 flavours4.5 (954) · 4/4 requirements	Myproteinfree delivery	€149.99	€61.72 /kg≈ €70.14 /kg of protein	64
	Myprotein Impact Whey Isolate 840g · 2 flavours4.5 (954) · 4/4 requirements	Myprotein+€5.99 delivery	€51.99	€61.89 /kg≈ €70.33 /kg of protein	64
	Myprotein Impact Whey Isolate 2.34kg - 90raciones Fresa Natural4.5 (954) · 4/4 requirements	Myproteinfree delivery	€149.99	€64.10 /kg≈ €72.84 /kg of protein	63
	Myprotein Impact Whey Isolate 450G - 15raciones Sin Sabor · 5 flavours4.5 (954) · 4/4 requirements	Myprotein+€5.99 delivery	€29.99	€66.64 /kg≈ €75.73 /kg of protein	63
	Myprotein Impact Whey Isolate 780g · 2 flavours4.5 (954) · 4/4 requirements	Myprotein+€5.99 delivery	€51.99	€66.65 /kg≈ €75.74 /kg of protein	63
	Myprotein Impact Whey Isolate 420G · 2 flavours4.5 (954) · 4/4 requirements	Myprotein+€5.99 delivery	€29.99	€71.41 /kg≈ €81.14 /kg of protein	62
	Myprotein Impact Whey Isolate 405G · 3 flavours4.5 (954) · 4/4 requirements	Myprotein+€5.99 delivery	€29.99	€74.05 /kg≈ €84.15 /kg of protein	61
	Myprotein Impact Whey Isolate 1KG · 8 flavours4.5 (954) · 4/4 requirements	Myproteinfree delivery	€74.99	€74.99 /kg≈ €85.22 /kg of protein	61
	Myprotein Impact Whey Isolate 390G · 2 flavours4.5 (954) · 4/4 requirements	Myprotein+€5.99 delivery	€29.99	€76.90 /kg≈ €87.39 /kg of protein	61
28	Optimum Nutrition Platinum Suero Hydro · Aislado de Proteína de Leche Hidrolizada · 1,6 kg	Amazonfree delivery	€75.99	€47.49 /kg≈ €53.97 /kg of protein	68
29	QUAMTRAX Whey isolate 2kg / Choco blanco y frambuesa · 2 flavours · 1/1 requirements	Quamtraxfree delivery	€99.90	€49.95 /kg≈ €56.76 /kg of protein	68
	QUAMTRAX Whey isolate 700g / Choco blanco y frambuesa · 5 flavours · 1/1 requirements	Quamtraxfree delivery	€42.90	€61.29 /kg≈ €69.65 /kg of protein	64
30	Whey Protein Isolate Neutro 900g Bodylab24	Amazonfree delivery	€43.89	€48.77 /kg≈ €55.42 /kg of protein	68
31	Equilibre Attitude Balance Attitude Ea-Fit Pure Isolate Vanil Pdr 750 ggood price	PromoFarma	€36.90	€49.20 /kg≈ €55.91 /kg of protein	67
32	Proteina en Polvo Whey Aislado Sabor Doble Chocolate 800g	Amazonfree delivery	€39.60	€49.50 /kg≈ €56.25 /kg of protein	67
33	Myprotein Impact Whey Isolate 600G4.5 (954) · 4/4 requirements	Myprotein+€5.99 delivery	€30.24	€50.40 /kg≈ €57.27 /kg of protein	67
34	Applied Nutrition Iso-xp (1000g) - Whey Isolate (Aislado) - - Choco Honeycomb	Amazonfree delivery	€49.90	€49.90 /kg≈ €56.70 /kg of protein	67
35	Myprotein Impact Whey Isolate 2.7kg · 4 flavours4.5 (954) · 4/4 requirements	Myproteinfree delivery	€136.99	€50.74 /kg≈ €57.66 /kg of protein	67
36	Scientiffic Nutrition Isolat 2.0 · Whey Protein · 2 kg	Amazonfree delivery	€99.90	€49.95 /kg≈ €56.76 /kg of protein	67
37	Bulk Whey Protein Isolate, Vainilla, 1 kg	Amazonfree delivery	€50.59	€50.59 /kg≈ €57.49 /kg of protein	67
38	MuscleFit ISOLATE Protein CFM Creación de Músculo Sabor Vainilla & Canela · 4 flavours5.0 (1)	PromoFarma	€102.09	€51.05 /kg≈ €58.01 /kg of protein	67
39	HSN 100% Whey Protein Isolate Sin Sabor 2 kg · 1/1 requirements	DosFarmafree delivery	€104.99	€52.49 /kg≈ €59.65 /kg of protein	67
40	226ERS Isolate Protein Drink Vainilla 1 kg · 1/1 requirements	DosFarma+€3.99 delivery	€52.99	€52.99 /kg≈ €60.22 /kg of protein	67
	226ERS Isolate Protein Drink Chocolate 1 kg · 1/1 requirements	DosFarma+€3.99 delivery	€54.99	€54.99 /kg≈ €62.49 /kg of protein	66
41	iO.GENIX - ISOLATE PROFESSIONAL 2 KG	Amazonfree delivery	€103.95	€51.98 /kg≈ €59.07 /kg of protein	66
42	Vitobest Isolate CFM Zero · 1/1 requirements	VitOBestfree delivery	€54.00	€54.00 /kg≈ €61.36 /kg of protein	66
43	Life Pro ISOLATE ZERO 1600G5.0 (1) · 1/1 requirements	Life Profree delivery	€87.18	€54.49 /kg≈ €61.92 /kg of protein	66
	Life Pro ISOLATE ZERO 1600G	Tienda Culturistafree delivery	€95.90	€59.94 /kg≈ €68.11 /kg of protein	64
	Life Pro ISOLATE ZERO 800G4.7 (14) · 1/1 requirements	Life Profree delivery	€56.27	€70.34 /kg≈ €79.93 /kg of protein	63
	Life Pro ISOLATE ZERO 500G · 1/1 requirementspricey now	Life Profree delivery	€36.27	€72.54 /kg≈ €82.43 /kg of protein	62
	Life Pro ISOLATE ZERO 800G	Tienda Culturistafree delivery	€61.90	€77.38 /kg≈ €87.93 /kg of protein	60
	Life Pro ISOLATE ZERO 500Gpricey now	Tienda Culturistafree delivery	€39.90	€79.80 /kg≈ €90.68 /kg of protein	60
44	Optimum Nutrition Standard 100% Proteína de Suero Aislada en Polvo · 930 g · 2 flavours	Amazonfree delivery	€48.95	€52.63 /kg≈ €59.81 /kg of protein	66
45	Proteína Whey Isolate 100% Pura · 1 kg	Amazonfree delivery	€52.95	€52.95 /kg≈ €60.17 /kg of protein	66
46	Dymatize ISO 100 Hydrolyzed Chocolate Coconut 2264g	Amazonfree delivery	€119.89	€52.95 /kg≈ €60.17 /kg of protein	66
47	Zumub Whey Aislada Profesional 2 kg (2x 1kg) · 3 flavours · 4/4 requirements	Zumubfree delivery	€109.99	€54.99 /kg≈ €62.49 /kg of protein	66
	Zumub Whey Aislada Profesional 1 kg · 3 flavours · 4/4 requirements	Zumubfree delivery	€61.59	€61.59 /kg≈ €69.99 /kg of protein	64
48	Bulk Whey Isolate, Chocolate Blanco, 500g · 2 flavours	Amazonfree delivery from €35	€26.99	€53.98 /kg≈ €61.34 /kg of protein	66
49	MEGA Proteína Isolat Competition · 1 kg	Amazonfree delivery	€53.99	€53.99 /kg≈ €61.35 /kg of protein	66
50	iO.GENIX ISOLATE PROFESSIONAL 2 KG	iO.GENIXfree delivery	€109.70	€54.85 /kg≈ €62.33 /kg of protein	66
	iO.GENIX ISOLATE PROFESSIONAL 1KG	iO.GENIXfree delivery	€65.05	€65.05 /kg≈ €73.92 /kg of protein	63
	iO.GENIX ISOLATE PROFESSIONAL 500G	iO.GENIXfree delivery from €49	€35.29	€70.58 /kg≈ €80.20 /kg of protein	62
51	Myprotein Impact Whey Isolate 900G - 30raciones Salted Caramel (Milkshake) · 4 flavours4.5 (954) · 4/4 requirements	Myprotein+€5.99 delivery	€49.99	€55.54 /kg≈ €63.11 /kg of protein	66
	Myprotein Impact Whey Isolate 450G - 15raciones Salted Caramel (Milkshake) · 4 flavours4.5 (954) · 4/4 requirements	Myprotein+€5.99 delivery	€27.99	€62.20 /kg≈ €70.68 /kg of protein	64
52	VitoBest Isolate Zero Chocolate 1kg · 4/4 requirements	PromoFarma	€58.91	€58.91 /kg≈ €66.94 /kg of protein	66
53	SPORT LIVE Whey protein isolate NEUTRA · 800 g · 2 flavours	Amazonfree delivery	€43.90	€54.88 /kg≈ €62.35 /kg of protein	65
54	Prozis 100% Whey Prime Isolate 1000 g4.7 (1)	Prozisfree delivery	€54.99	€54.99 /kg≈ €62.49 /kg of protein	65
55	Eafit Construction Construcción Muscular Chocolate Aislado Puro 750 g	PromoFarma	€41.84	€55.79 /kg≈ €63.40 /kg of protein	65
56	DMI INNOVATIVE NUTRITION Isolate Pro Zero 1 kg Sabor Dulce de Chocolate	Amazonfree delivery	€55.90	€55.90 /kg≈ €63.52 /kg of protein	65
57	226ERS Isolate Protein · 1 kg	Amazonfree delivery	€56.00	€56.00 /kg≈ €63.64 /kg of protein	65
58	Weider Clear Isolate 500 Gr · 4/4 requirementslowest seen	Bulevipfree delivery from €40	€26.38	€52.76 /kg≈ €59.95 /kg of protein	65
59	Myprotein Impact Whey Isolate 480g · 2 flavours4.5 (954) · 4/4 requirements	Myprotein+€5.99 delivery	€27.99	€58.31 /kg≈ €66.26 /kg of protein	65
60	Proteína Isolate Chocolate 500g Sin Azúcar Sin Edulcorantes	Amazonfree delivery from €35	€29.00	€58.00 /kg≈ €65.91 /kg of protein	65
61	Scientiffic Nutrition Isolat 2.0 · Whey Protein · 908 g	Amazonfree delivery	€52.90	€58.26 /kg≈ €66.20 /kg of protein	64
62	Nutripure Proteína Whey Isolate Nativa - 28g por Dosis - Neutro - 750g	Amazonfree delivery	€43.90	€58.53 /kg≈ €66.51 /kg of protein	64
	Nutripure Proteína Whey Isolate Nativa - 26g por Dosis - Vainilla - 750g	Amazonfree delivery	€46.90	€62.53 /kg≈ €71.06 /kg of protein	63
63	Drasanvi Whey Protein Aislado Doble Chocolate 800 g · 4/4 requirements	PromoFarma	€47.96	€59.95 /kg≈ €68.12 /kg of protein	64
64	Life Pro CLEAR ZERO AISLADO DE SUERO 800G4.5 (27) · 1/1 requirements	Life Profree delivery	€49.00	€61.25 /kg≈ €69.60 /kg of protein	64
65	Proteina Whey Isolate Aislada En Polvo Alta Con BCAA Glutamina	Amazonfree delivery from €35	€29.99	€59.98 /kg≈ €68.16 /kg of protein	64
66	Proteína Isolate Chocolate NDL Pro-Health · 1 kg	Amazonfree delivery	€60.00	€60.00 /kg≈ €68.18 /kg of protein	64
67	Quamtrax Direct 100% Whey Isolate4.5 (13)	Nutritiendafree delivery	€42.90	€61.29 /kg≈ €69.65 /kg of protein	64
68	Mega Isolat Competition Cfm 1 Kg5.0 (1) · 1/1 requirements	Bulevipfree delivery	€64.73	€64.73 /kg≈ €73.56 /kg of protein	64
69	ESN ISOCLEAR Whey Isolate Protein Powder, Cereza fresca, 1000 g	Amazonfree delivery	€62.90	€62.90 /kg≈ €71.48 /kg of protein	63
70	Prozis 100% Whey Hydro Isolate 2000 g4.7 (1)	Prozisfree delivery	€125.99	€62.99 /kg≈ €71.58 /kg of protein	63
	Prozis 100% Whey Hydro Isolate 900g4.7 (1)	Prozisfree delivery	€67.99	€75.54 /kg≈ €85.84 /kg of protein	61
71	Optimum Nutrition Standard 100% Proteína de Suero Aislada en Polvo · 450 g	Amazonfree delivery from €35	€28.40	€63.11 /kg≈ €71.72 /kg of protein	63
72	IronMaxx Clear Whey Isolate Zero · 400 g	Amazonfree delivery from €35	€25.41	€63.52 /kg≈ €72.18 /kg of protein	63
73	Protein · Proteína de aislado de suero clear whey · 500 g	Amazonfree delivery from €35	€31.90	€63.80 /kg≈ €72.50 /kg of protein	63
74	Bigman Zero Whey Protein Isolate 910 gr (2 Lbs)4.5 (6) · 4/4 requirements	Bulevipfree delivery	€59.80	€65.71 /kg≈ €74.67 /kg of protein	63
75	Namedsport Star Whey Isolate Sublime Chocolate 750 gr · 1/1 requirements	DosFarma+€3.99 delivery	€49.99	€66.65 /kg≈ €75.74 /kg of protein	63
76	Myprotein Impact Whey Isolate 480g · 2 flavours4.5 (954) · 4/4 requirements	Myprotein+€5.99 delivery	€31.99	€66.65 /kg≈ €75.74 /kg of protein	63
77	Dymatize ISO 100 Hydrolyzed Gourmet Vanilla 570g	Amazonfree delivery	€37.49	€65.77 /kg≈ €74.74 /kg of protein	63
78	Proteína Whey Isolate Fresa & Vanilla · 450 g	Amazonfree delivery from €35	€29.90	€66.44 /kg≈ €75.50 /kg of protein	62
79	Proteína Whey Isolate 90% Grass Fed · 525 g	Amazonfree delivery from €35	€34.90	€66.48 /kg≈ €75.55 /kg of protein	62
80	Optimum Nutrition Clear Whey Isolate · 20 g de Aislado de Proteína Whey	Amazonfree delivery from €35	€31.99	€66.65 /kg≈ €75.74 /kg of protein	62
81	Prozis 100% Whey Hydro Isolate PRO 2000 g4.8 (1)	Prozisfree delivery	€134.99	€67.50 /kg≈ €76.70 /kg of protein	62
82	Optimum Nutrition 100% Gold Standard Isolate 930 Gr5.0 (2) · 4/4 requirementspricey now	Bulevipfree delivery	€64.79	€69.67 /kg≈ €79.17 /kg of protein	62
	Optimum Nutrition Gold Standard 100% Isolate Chocolate 930g	PromoFarma	€75.59	€81.28 /kg≈ €92.36 /kg of protein	60
83	Life Pro CLEAR ISOLATE ZERO 800G	Tienda Culturistafree delivery	€53.90	€67.38 /kg≈ €76.57 /kg of protein	62
84	Weider Isolate Whey 100 CFM Fresa 908g	PromoFarma	€61.59	€67.83 /kg≈ €77.08 /kg of protein	62
	Weider Isolate Whey 100 CFM 2 Kg4.8 (22) · 25 % active · 4/5 requirements	Bulevipfree delivery	€109.98	€54.99 /kg€219.96 /kg of protein	58
85	NAMED NamedSport Star Whey Isolate Vainilla 750 g	PromoFarma	€51.19	€68.25 /kg≈ €77.56 /kg of protein	62
86	BIG Proteina Isolada · 500 g	Amazonfree delivery from €35	€34.50	€69.00 /kg≈ €78.41 /kg of protein	62
87	Prozis 100% Whey Hydro Isolate - ULTIMATE SERIES 1814 g	Prozisfree delivery	€125.99	€69.45 /kg≈ €78.92 /kg of protein	62
	Prozis 100% Whey Hydro Isolate ULTIMATE SERIES 907g	Prozisfree delivery	€67.99	€74.96 /kg≈ €85.18 /kg of protein	61
88	Prozis 100% Real Whey Isolate 1000 g4.7 (1)	Prozisfree delivery	€69.99	€69.99 /kg≈ €79.53 /kg of protein	62
	Prozis 100% Real Whey Isolate 2000g	Prozisfree delivery	€139.98	€69.99 /kg≈ €79.53 /kg of protein	62
	Prozis 100% Real Whey Isolate 907g	Prozisfree delivery	€69.99	€77.17 /kg≈ €87.69 /kg of protein	61
	Prozis 100% Real Whey Isolate 1814 g	Prozisfree delivery	€139.98	€77.17 /kg≈ €87.69 /kg of protein	61
	Prozis Natural Real Whey Isolate 907g	Prozisfree delivery	€70.99	€78.27 /kg≈ €88.94 /kg of protein	60
	Prozis Natural Real Whey Isolate 1814 g	Prozisfree delivery	€141.98	€78.27 /kg≈ €88.94 /kg of protein	60
89	BioTechUSA Iso Whey Zero · Aislado de suero de leche · 454 g	Amazonfree delivery from €35	€31.90	€70.26 /kg≈ €79.84 /kg of protein	62
90	Best Protein Whey Isolate 2 kg4.6 (12) · 3/4 requirements	Bulevipfree delivery	€117.70	€58.85 /kg≈ €66.88 /kg of protein	61
91	Scientiffic Nutrition Isolat 2.0 · Whey Protein · 52 g	Amazonfree delivery from €35	€3.75	€72.11 /kg≈ €81.95 /kg of protein	61
92	Kobho Labs Kobho Proteína Whey Aislada Vainilla 525 gr · 2 flavours · 1/1 requirements	DosFarma+€3.99 delivery	€39.99	€76.17 /kg≈ €86.56 /kg of protein	61
93	Prozis 100% Whey Hydro Isolate PRO - ULTIMATE SERIES 1814g	Prozisfree delivery	€134.99	€74.42 /kg≈ €84.57 /kg of protein	61
94	Prozis 100% Whey Hydro Isolate Zero ULTIMATE SERIES 750g	Prozisfree delivery	€55.99	€74.65 /kg≈ €84.83 /kg of protein	61
95	Grow Wellness Proteína Aislada Chocolate Salado 500g	Amazonfree delivery	€37.99	€75.98 /kg≈ €86.34 /kg of protein	61
96	Scientiffic Nutrition Isolat 2.0 Whey Protein Isolac 2 Kg · 41 % active · 4/5 requirements	Bulevipfree delivery	€95.90	€47.95 /kg€116.95 /kg of protein	61
97	Proteína de Suero (Whey Protein Isolate) en Polvo · 450 g	Amazonfree delivery from €35	€34.99	€77.76 /kg≈ €88.36 /kg of protein	60
98	Prozis 100% Whey Hydro Isolate Clear 700g	Prozisfree delivery	€54.99	€78.56 /kg≈ €89.27 /kg of protein	60
99	Prozis Clear Whey Isolate · 12 flavours4.6 (1)	Prozisfree delivery	€39.99	€79.98 /kg≈ €90.89 /kg of protein	60
100	Prozis Natural Pure Native Whey Isolate 900 g4.6 (1)	Prozisfree delivery	€71.99	€79.99 /kg≈ €90.90 /kg of protein	60
101	Prozis 100% Whey Prime Isolate + Creatine 907g · 2 flavours	Prozisfree delivery	€72.99	€80.47 /kg≈ €91.44 /kg of protein	60
102	Myprotein Clear Whey Isolate 500g · 5 flavours4.4 (118) · 20 % active · 4/5 requirements	Myprotein+€5.99 delivery	€23.39	€46.78 /kg€233.90 /kg of protein	60
103	HSN 100% Whey Protein Isolate WPI Sin Sabor 500 g	Amazonfree delivery	€41.90	€83.80 /kg≈ €95.23 /kg of protein	60
104	Amix Black Line Cfm Isolate 2 Kg · 3/4 requirements	Bulevipfree delivery	€134.90	€67.45 /kg≈ €76.65 /kg of protein	59
	Amix Black Line Cfm Isolate 1 Kg · 3/4 requirements	Bulevipfree delivery	€79.90	€79.90 /kg≈ €90.80 /kg of protein	57
105	Mega Plus Isolat Competition Chocolate Blanco 1000 gpricey now	PromoFarma	€86.11	€86.11 /kg≈ €97.85 /kg of protein	59
106	Whey Protein Isolate Neutra 750 g Provon® Proteina be levels	Amazonfree delivery	€66.00	€88.00 /kg≈ €100.00 /kg of protein	59
107	Maxler 100% Isolate Protein Pulver · 300 g	Amazonfree delivery from €35	€27.99	€93.30 /kg≈ €106.02 /kg of protein	58
108	Myprotein Impact Whey Isolate Milkshake 960g · 22 % active · 4/5 requirements	Myprotein+€5.99 delivery	€52.99	€55.20 /kg€250.91 /kg of protein	58
109	Weider Isolate Whey 100CFM 908 Gr4.5 (2) · 25 % active · 4/5 requirements	Bulevipfree delivery	€54.95	€60.52 /kg€242.08 /kg of protein	56
110	Myprotein Clear Whey Isolate 1KG · 5 flavours4.4 (118) · 20 % active · 4/5 requirements	Myproteinfree delivery	€59.99	€59.99 /kg€299.95 /kg of protein	55
	Myprotein Clear Whey Isolate 1560g - 60raciones Naranja y Mango4.4 (118) · 20 % active · 4/5 requirements	Myproteinfree delivery	€104.99	€67.30 /kg€336.50 /kg of protein	53
	Myprotein Clear Whey Isolate 480G · 2 flavours4.4 (118) · 20 % active · 4/5 requirements	Myprotein+€5.99 delivery	€33.99	€70.81 /kg€354.05 /kg of protein	53
	Myprotein Clear Whey Isolate 910g · 2 flavours4.4 (118) · 20 % active · 4/5 requirements	Myproteinfree delivery	€64.99	€71.42 /kg€357.10 /kg of protein	53
	Myprotein Clear Whey Isolate 875g · 7 flavours4.4 (118) · 20 % active · 4/5 requirements	Myproteinfree delivery	€64.99	€74.27 /kg€371.35 /kg of protein	52
	Myprotein Clear Whey Isolate 520g - 20raciones Naranja y Mango4.4 (118) · 20 % active · 4/5 requirements	Myprotein+€5.99 delivery	€39.99	€76.90 /kg€384.50 /kg of protein	52
	Myprotein Clear Whey Isolate 390G · 3 flavours4.4 (118) · 20 % active · 4/5 requirements	Myprotein+€5.99 delivery	€32.99	€84.59 /kg€422.95 /kg of protein	51
111	Myprotein Clear Whey Isolate 960g - 40raciones Watermelon (+ Collagen)4.4 (118) · 20 % active · 4/5 requirements	Myproteinfree delivery	€59.99	€62.49 /kg€312.45 /kg of protein	55
112	Myprotein Clear Whey Isolate 1500g · 3 flavours4.4 (118) · 20 % active · 4/5 requirements	Myproteinfree delivery	€94.99	€63.33 /kg€316.65 /kg of protein	54
	Myprotein Clear Whey Isolate 500g · 5 flavours4.4 (118) · 20 % active · 4/5 requirements	Myprotein+€5.99 delivery	€33.99	€67.98 /kg€339.90 /kg of protein	53
113	Myprotein Clear Whey Isolate 1500g - 60raciones Té de Melocotón · 2 flavours4.4 (118) · 20 % active · 4/5 requirements	Myproteinfree delivery	€104.99	€69.99 /kg€349.95 /kg of protein	53
	Myprotein Clear Whey Isolate 500g - 20raciones Té de Melocotón · 16 flavours4.4 (118) · 20 % active · 4/5 requirements	Myprotein+€5.99 delivery	€39.99	€79.98 /kg€399.90 /kg of protein	51
114	Myprotein Clear Whey Isolate 889G - 35raciones Mojito4.4 (118) · 20 % active · 4/5 requirements	Myproteinfree delivery	€64.99	€73.11 /kg€365.50 /kg of protein	52
115	Myprotein Clear Whey Isolate 420G4.4 (118) · 20 % active · 4/5 requirements	Myprotein+€5.99 delivery	€32.99	€78.55 /kg€392.75 /kg of protein	51
116	Myprotein Clear Whey Isolate 520g - 20raciones Chupa Chups® - Cola4.4 (118) · 20 % active · 4/5 requirementsgood price	Myprotein+€5.99 delivery	€41.99	€80.75 /kg€403.75 /kg of protein	51
117	Myprotein Clear Whey Isolate 405G - 15raciones Mixed Berries - Less Sweet4.4 (118) · 20 % active · 4/5 requirements	Myprotein+€5.99 delivery	€32.99	€81.46 /kg€407.30 /kg of protein	51
118	Myprotein Clear Whey Isolate 500g - 20raciones Chupa Chups® - Strawberry4.4 (118) · 20 % active · 4/5 requirementslowest seen	Myprotein+€5.99 delivery	€41.99	€83.98 /kg€419.90 /kg of protein	51

182 products in this table

Out of stock right now (3), left out of the table until they are back: HSN Raw Series 100% Whey protein isolate 500g, Life Pro AISLADO DE SUERO EDICIÓN GOURMET 900G, Life Pro ISOLATE GOURMET EDITION 900G.

What you are looking at. 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. Every product explains its mark line by line on its own page. How it is calculated.

Questions about whey isolate

Answered with the data on this page

Which whey isolate should you buy?: Bulk Whey Protein Isolate, Sin sabores añadidos, 1 kg from Amazon, with 83 points out of 100 at €26.99/kg. The mark is 35 % price 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 no commercial deal moves the ranking.
Which is the cheapest whey isolate?: Bulk Whey Protein Isolate, Sin sabores añadidos, 1 kg from Amazon, at €26.99/kg (1000 g pack for 26,99 €). It sits at verification level 1 out of 4. Cheap is not the same as well scored: price is 35 % of the mark and most of the rest is how verifiable its certification is.
How much does a kilo of whey isolate cost?: Between €26.99/kg and €93.30/kg across the 14 stores compared, with a median of €59.94/kg. That is the price per kg, not per pack: two tubs at the same price can cost twice as much as each other depending on what is inside.
What certification should whey isolate have?: Of the 182 products compared, 0 reach level 4 (the certification is backed by a third party: either we checked it with the body that issues it, or the product carries in its name a trademark that requires a third party behind it, such as Creapure or IFOS) and 2 reach level 3 (a lab report published by the brand itself). The remaining 180 stop at a certification claimed on the product page, or none at all. Only level 4 is checked against whoever issues the certification.
How much whey isolate should you take a day?: The reference dose this site uses for whey isolate is 20 g - 40 g a day, with strong evidence. Source: Jager R et al. ISSN position stand: protein and exercise. J Int Soc Sports Nutr. 2017;14:20. Dosis de 20-40 g de proteina por toma para maximizar la sintesis proteica muscular.. That is the dose of the ingredient in the study cited, not a recommendation for you nor a claim about any product in the table.

More specific questions about whey isolate11 comparisons — the same table, filtered

La mejor proteina aislada de Amazon49 prod.La mejor proteina aislada de Bulevip15 prod.La mejor proteina aislada de DosFarma7 prod.La mejor proteina aislada de Myprotein47 prod.La mejor proteina aislada de PromoFarma12 prod.La mejor proteina aislada de Prozis18 prod.La mejor proteina aislada de Zumub12 prod.La mejor proteina aislada barata92 prod.Amazon or Myprotein for whey isolate96 prod.Amazon or Prozis for whey isolate67 prod.Myprotein or Prozis for whey isolate65 prod.

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The raw data. This ranking is also available as JSON, with the collection date and a link to each product page. It can be cited and reused as long as you say where it comes from and which day the prices are from.