Best Iso Whey Protein 2026

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Last Updated - 03.02.2026

Best Choice

01

Dymatize

Dymatize ISO 100 Hydrolyzed Strawberry 2264g – Whey Protein Hydrolysate + Isolate Powder

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9.9

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

With less than 116 calories per serving (mixed with water), the fat and sugar-free protein powder is perfectly adapted to the needs of athletes who pay attention to optimal calorie supply in addition to protein.
The first-class formula of our whey isolate protein powder provides you with 25 g of the highest quality protein per serving, with BCAAs and L-leucine and is even gluten-free and suitable for vegetarians.
Hydrolysis, the whey protein isolate is split into smaller amino acid chains, making it particularly digestible and the perfect choice both after and before training sessions.
Awarded as isolate of the year between 2013 and 2017, our ISO 100 as a premium protein powder meets the highest standards and is the perfect protein intake before and after training.
According to the informed choice, all substances in the Iso Whey Protein powder meet the highest standards – so athletes are protected over product quality, especially during the competition period.

88,30 €
02

BioTechUSA

BioTechUSA Iso Whey Zero, Whey Protein Isolate, Grass-Fed, Enzyme-Free, Sugar- and Gluten-Free, 1816 g, Chocolate

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9.8

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Native protein in its purest form: by preserving the whey protein in its native, non-denatured form, Iso Whey Zero offers maximum bioavailability and absorption. This means that your body can use the high-quality protein more efficiently to build and repair muscle, while supporting controlled calorie intake that is essential for achieving fitness goals.
Low lactose, sugar-free and clean formula: Iso Whey Zero contains less lactose and no added sugar and is therefore a clean source of protein. It is also gluten-free, palm oil free and preservative-free, making it a great option for people with dietary sensitivities or special nutritional goals.
Highly modern filtration process: Iso Whey Zero undergoes a unique, multi-stage filtration process at low heat that preserves the integrity of the protein while removing unwanted fats, sugars and bacteria. This process delivers a highly purified protein powder that is not only more effective but also easier to digest, promoting faster recovery and muscle development.
Extracted from the milk of grass-fed cows: our whey protein is derived from the milk of grass-fed cows, which ensures a clean, sustainable and high-quality protein. Grass-fed cows produce milk that is naturally richer in essential nutrients, making them an optimal choice for those looking to support muscle growth and overall well-being.
Enzyme-free technology for purity: unlike many other protein powders, we do not use enzyme treatment to reduce lactose content. Instead, our state-of-the-art filtration technology naturally preserves the purity of the protein and ensures a clean, natural product without unnecessary chemicals or additives.

84,90 €
Value for Money

03

BioTechUSA

BioTechUSA Iso Whey Zero, Whey Protein Isolate, Grass-Fed, Enzyme-Free, Sugar- and Gluten-Free, 1816 g, Chocolate

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9.7

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Native protein in its purest form: by preserving the whey protein in its native, non-denatured form, Iso Whey Zero offers maximum bioavailability and absorption. This means that your body can use the high-quality protein more efficiently to build and repair muscle, while supporting controlled calorie intake that is essential for achieving fitness goals.
Low lactose, sugar-free and clean formula: Iso Whey Zero contains less lactose and no added sugar and is therefore a clean source of protein. It is also gluten-free, palm oil free and preservative-free, making it a great option for people with dietary sensitivities or special nutritional goals.
Highly modern filtration process: Iso Whey Zero undergoes a unique, multi-stage filtration process at low heat that preserves the integrity of the protein while removing unwanted fats, sugars and bacteria. This process delivers a highly purified protein powder that is not only more effective but also easier to digest, promoting faster recovery and muscle development.
Extracted from the milk of grass-fed cows: our whey protein is derived from the milk of grass-fed cows, which ensures a clean, sustainable and high-quality protein. Grass-fed cows produce milk that is naturally richer in essential nutrients, making them an optimal choice for those looking to support muscle growth and overall well-being.
Enzyme-free technology for purity: unlike many other protein powders, we do not use enzyme treatment to reduce lactose content. Instead, our state-of-the-art filtration technology naturally preserves the purity of the protein and ensures a clean, natural product without unnecessary chemicals or additives.

80,65 €
04

ESN

ESN Iso Whey Hardcore Protein Powder, Vanilla (Classic), 1000 g

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9.6

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Production: Iso Whey Hardcore is cold gently produced by micro- and ultra-filtration and thus protected from denaturation. This means that valuable fractions such as immunoglobulin and lactoferrin are intact and bioactive. Conclusion: Recommended not only for athletes, but also for healthy life stylists and regular people.
Ideal nutritional values: Very high protein content. Milk fat and lactose are almost filtered out. If you want a lot of high-quality protein and little fat and lactose, you have come to the right place. With 86 grams of protein per 100 grams of protein powder, your body is well provided for
High bioavailability: 44.7% EAA (Essential Amino Acids) and 21% BCAA (Branched-Chain Amino Acids) are naturally bound and easily metabolised as peptides.
German quality product: Made in Germany under the strictest quality specifications. Aspartame free and lacto-vegetarian.
Drink: This is an instant protein powder in many delicious flavours. Convenient and quick to prepare in the shaker, it is an ideal support for sports and in all situations.

49,90 €
05

ESN

ESN Iso Whey Hardcore Protein Powder, Vanilla (Classic), 1000 g

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9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Production: Iso Whey Hardcore is cold gently produced by micro- and ultra-filtration and thus protected from denaturation. This means that valuable fractions such as immunoglobulin and lactoferrin are intact and bioactive. Conclusion: Recommended not only for athletes, but also for healthy life stylists and regular people.
Ideal nutritional values: Very high protein content. Milk fat and lactose are almost filtered out. If you want a lot of high-quality protein and little fat and lactose, you have come to the right place. With 86 grams of protein per 100 grams of protein powder, your body is well provided for
High bioavailability: 44.7% EAA (Essential Amino Acids) and 21% BCAA (Branched-Chain Amino Acids) are naturally bound and easily metabolised as peptides.
German quality product: Made in Germany under the strictest quality specifications. Aspartame free and lacto-vegetarian.
Drink: This is an instant protein powder in many delicious flavours. Convenient and quick to prepare in the shaker, it is an ideal support for sports and in all situations.

47,40 €
06

Optimum Nutrition

Optimum Nutrition Gold Standard Isolate Protein 1095685

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34% Off
9.4

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Ultra-filtered pure natural product.
83% protein content per serving.
5.5 g naturally occurring Branched-chain amino acids (BCAAs).
4.3 g naturally occurring glutamine.
25 g whey protein per portion.

36,09 € 54,99 €(34% Off off)
07

Optimum Nutrition

Optimum Nutrition Gold Standard Isolate Protein 1095685

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34% Off
9.3

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Ultra-filtered pure natural product.
83% protein content per serving.
5.5 g naturally occurring Branched-chain amino acids (BCAAs).
4.3 g naturally occurring glutamine.
25 g whey protein per portion.

36,09 € 54,99 €(34% Off off)
08

ESN

ESN Iso Whey Hardcore Protein Powder, Chocolate, 1000 g

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9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Production: Iso Whey Hardcore is cold gently produced by micro- and ultra-filtration and thus protected from denaturation. This means that valuable fractions such as immunoglobulin and lactoferrin are intact and bioactive. Conclusion: Recommended not only for athletes, but also for healthy life stylists and regular people.
Ideal nutritional values: Very high protein content. Milk fat and lactose are almost filtered out. If you want a lot of high-quality protein and little fat and lactose, you have come to the right place. With 86 grams of protein per 100 grams of protein powder, your body is well provided for
High bioavailability: 44.7% EAA (Essential Amino Acids) and 21% BCAA (Branched-Chain Amino Acids) are naturally bound and easily metabolised as peptides.
German quality product: Made in Germany under the strictest quality specifications. Aspartame free and lacto-vegetarian.
Drink: This is an instant protein powder in many delicious flavours. Convenient and quick to prepare in the shaker, it is an ideal support for sports and in all situations.

49,90 €
09

ESN

ESN Iso Whey Hardcore Protein Powder, Chocolate, 1000 g

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9.1

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Production: Iso Whey Hardcore is cold gently produced by micro- and ultra-filtration and thus protected from denaturation. This means that valuable fractions such as immunoglobulin and lactoferrin are intact and bioactive. Conclusion: Recommended not only for athletes, but also for healthy life stylists and regular people.
Ideal nutritional values: Very high protein content. Milk fat and lactose are almost filtered out. If you want a lot of high-quality protein and little fat and lactose, you have come to the right place. With 86 grams of protein per 100 grams of protein powder, your body is well provided for
High bioavailability: 44.7% EAA (Essential Amino Acids) and 21% BCAA (Branched-Chain Amino Acids) are naturally bound and easily metabolised as peptides.
German quality product: Made in Germany under the strictest quality specifications. Aspartame free and lacto-vegetarian.
Drink: This is an instant protein powder in many delicious flavours. Convenient and quick to prepare in the shaker, it is an ideal support for sports and in all situations.

47,40 €
10

Dymatize

Dymatize ISO 100 Hydrolyzed Strawberry 2264g – Whey Protein Hydrolysate + Isolate Powder

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12% Off
9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

With less than 116 calories per serving (mixed with water), the fat and sugar-free protein powder is perfectly adapted to the needs of athletes who pay attention to optimal calorie supply in addition to protein.
The first-class formula of our whey isolate protein powder provides you with 25 g of the highest quality protein per serving, with BCAAs and L-leucine and is even gluten-free and suitable for vegetarians.
Hydrolysis, the whey protein isolate is split into smaller amino acid chains, making it particularly digestible and the perfect choice both after and before training sessions.
Awarded as isolate of the year between 2013 and 2017, our ISO 100 as a premium protein powder meets the highest standards and is the perfect protein intake before and after training.
According to the informed choice, all substances in the Iso Whey Protein powder meet the highest standards – so athletes are protected over product quality, especially during the competition period.

83,88 € 94,99 €(12% Off off)