Protein Isolate

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Whey protein isolate is the purest form of whey you can get — filtered to remove most of the fat and lactose, leaving behind a lean, fast-absorbing protein isolate powder with a high protein content per serving. Whether you're tracking macros tightly or simply want more protein with fewer extras, isolate delivers exactly that. The range covers everything from classic whey isolate powder to clear whey isolate and plant-based options, so there's a format to fit any preference or dietary need.

From collaboration flavours like SNICKERS® and MARS® to light, juice-style clear whey isolate, the lineup goes well beyond standard shakes. Grass-fed whey isolate, collagen-infused clear whey, vegan isolate options, and recovery-specific blends mean this isn't a one-size-fits-all category. Whatever your training style or taste, there's a protein isolate here built around it.

Who Protein Isolate Is For

Protein isolate is a natural fit for anyone who puts a premium on hitting high protein targets without a lot of additional calories from fat or carbohydrates. Athletes in body composition phases, those who train frequently and need a reliable daily protein source, and anyone who finds standard whey concentrate sits heavily will all find isolate the cleaner option.

It's also worth noting that because whey isolate is filtered to remove most of the lactose, it tends to be a more comfortable choice for people who are sensitive to lactose. And if you're simply someone who wants a lean, versatile protein that mixes cleanly and tastes good, isolate ticks every box.

When to Use Protein Isolate

The most popular time to use whey isolate is immediately post-workout, when many people want a fast-absorbing protein without a heavy meal. Its lean macronutrient profile makes it easy to slot into that window without derailing your nutritional targets for the day. That said, isolate is just as effective at any other point — between meals, first thing in the morning, or as a quick protein hit before training.

Clear whey isolate and the splash-of-flavour formats work particularly well in warmer months or when you want something lighter than a traditional shake. Recovery blends like THE Recovery are designed more specifically around the post-training window, combining protein with carbohydrates and electrolytes. Matching the format to your goal is the smartest way to use the range.

Protein Isolate Benefits

High Protein, Lean Formula

Whey isolate is processed to strip away most of the fat and lactose found in standard whey concentrate. The result is a protein isolate powder with a higher percentage of protein per gram — up to 26g per serving from Impact Whey Isolate Powder — making it one of the most efficient ways to hit your daily protein targets.

Muscle Growth and Maintenance

Protein contributes to the growth and maintenance of muscle mass¹, making a high-quality isolate protein powder a practical daily tool for anyone training consistently. With protein also contributing to the maintenance of normal bones², it's a nutrient that earns its place across the board.

Format Variety

The range runs from traditional shakes to juice-textured clear whey isolate, collagen-enriched options, vegan isolate, and specialist recovery formulas. Whatever your preference — thick and indulgent, light and refreshing, or plant-based — there's a format here designed for it.

Low Lactose

Because whey isolate goes through a more thorough filtration process than concentrate, most of the lactose is removed. That makes it a more digestively comfortable choice for people who find standard whey harder to tolerate, without compromising on protein quality or taste.

Popular Picks

Impact Whey Isolate – SNICKERS® — Impact Whey Isolate – SNICKERS® is built for athletes who refuse to compromise on taste or quality, delivering 23g of certified, purity-tested protein in SNICKERS® Original and SNICKERS® White flavours.

Impact Whey Isolate – MARS® — Impact Whey Isolate – MARS® packs up to 23g of fast-absorbing protein into just 122 calories per serving, making it the smart pick when you want ultra-high protein without the bulk.

Impact Whey Isolate Powder — Impact Whey Isolate Powder is the no-frills, maximum-output option, squeezing up to 26g of fast-absorbing protein into just 109 calories per serving for those who want the numbers to do the talking.

FAQs

What is whey protein isolate?

Whey protein isolate is whey that's been put through an advanced filtration process to remove most of the fat and lactose, resulting in a purer, leaner protein powder with a higher protein content per serving than standard concentrate. It's one of the most complete protein sources available, containing all nine essential amino acids. The filtration process also means it tends to sit more comfortably with people who are sensitive to lactose.

What's the difference between whey isolate and whey concentrate?

The key difference is purity. Whey concentrate typically contains more fat and lactose alongside the protein, while whey isolate has been further filtered to remove most of both — resulting in a higher protein percentage per gram. Isolate is the leaner choice and generally absorbs quickly, making it a popular option for those tracking macros closely or looking for a cleaner protein profile. Concentrate is a perfectly solid option too, but isolate gives you more protein per serving with less of everything else.

What is clear whey isolate?

Clear whey isolate is a whey protein isolate that's been processed differently to create a light, juice-style drink rather than a traditional milky shake. It mixes with water to give a clear or semi-clear liquid with a refreshing, fruity taste — a completely different texture experience to standard protein powders. Clear Whey Protein Powder is a popular choice for anyone who prefers something lighter, especially around training or in warmer weather.

How much protein does protein isolate powder contain?

Protein content varies by product, but the range runs up to 26g of protein per serving — Impact Whey Isolate Powder hits that mark and is one of the highest protein-per-serving options available. The SNICKERS® and MARS® collaboration flavours of Impact Whey Isolate deliver up to 23g per serving. Exact figures will always appear on the product label and nutrition panel, so it's worth checking the specific product you're buying.

Is protein isolate good for building muscle?

Protein contributes to the growth and maintenance of muscle mass¹, and whey isolate is a high-quality, complete protein source that fits neatly into any nutrition plan built around training. The lean profile means you're getting a high proportion of protein relative to overall calories, which works well whether you're focused on building muscle or maintaining it during a leaner phase.

Is there a grass-fed whey isolate option?

Grass-Fed Impact Whey Isolate is available for anyone who specifically wants protein sourced from grass-fed cattle. It delivers the same high protein content you'd expect from an isolate, with the provenance of grass-fed dairy. It's a straightforward choice if the source of your whey matters to you.

Are there vegan or plant-based protein isolate options?

The range includes several plant-based options — Impact Vegan Protein, Impact Pea Protein, Soy Protein Isolate, and Clear Vegan Protein all sit within the category. These are built for anyone avoiding animal-derived products who still wants a high-protein, isolate-style supplement. Protein contributes to the growth and maintenance of muscle mass¹ regardless of the source, so plant-based isolates are a fully viable option.

Who developed the protein isolate products?

Every product in the range has been developed by Myprotein's expert nutritionists, working to create formulas that balance protein quality, macronutrient profile, flavour, and format. That expertise runs across the full lineup — from flagship whey isolate powders to specialist clear proteins, collagen blends, and recovery formulas.

What formats does the protein isolate range come in?

The range covers a lot of ground. There are traditional shake-style powders, light juice-textured clear whey isolates, collagen-enriched clear whey, vegan and pea protein isolates, a soy protein isolate, and THE Recovery — a post-training formula that combines protein with carbohydrates and electrolytes. Sample and variety pack formats are also available, making it easy to try before committing to a larger bag.

Which protein isolate should I choose?

If you want the highest protein content per serving in a classic shake format, Impact Whey Isolate Powder is the go-to — up to 26g per serving and a wide flavour range. For something more indulgent, Impact Whey Isolate in SNICKERS® or MARS® flavours brings 23g of protein per serving alongside a genuinely impressive taste. If you'd rather have a light, refreshing drink over a traditional shake, Clear Whey Protein Powder is the move. Plant-based? Clear Vegan Protein or Impact Pea Protein are solid starting points.

1. Protein contributes to a growth in muscle mass.  

2. Protein contributes to the maintenance of normal bones.