Protein Isolate Powders
Whey Protein Isolate is a highly refined protein with higher protein and lower fat and carbs content than whey protein concentrate. It has 90% protein content per serving and is ideal for contributing to the growth and maintenance of muscle mass. Our Pea Protein Isolate is a protein powder sourced from 100% pea protein isolate. It is an excellent source of plant-based protein, with 23g of protein per serving. You should also check out our Clear Protein Isolate, the Winner of 'The Best Nutrition Product' at the European Specialist Sports Nutrition Awards 2019. It is created from high-quality hydrolysed whey protein isolate, made into a juicy protein shake that is more light and refreshing than a traditional protein shake.
Shop Protein Isolate Powders at Myprotein
Protein isolate powder is one of the purest forms of protein available — processed to remove most of the fat and lactose, leaving behind a concentrated source of protein that contributes to the growth and maintenance of muscle mass.1 Whether you're after a lean post-workout shake or a high-protein option that fits around a calorie-conscious diet, isolate powders deliver more protein per gram than standard concentrate blends.
The range here covers whey isolate, clear whey, pea isolate, and soy isolate options — so whether you train hard, eat plant-based, or simply want a cleaner protein source, there's an isolate powder that fits. Formats range from classic milkshake-style powders to light, juice-textured drinks, giving you flexibility in how you hit your daily protein targets.
Who Protein Isolate Powders Are For
Protein isolate powders are built for anyone prioritising a high protein intake without the extra calories that come with whole-food sources or standard protein concentrates. Athletes focused on lean muscle mass, those tracking macros tightly, or anyone with a sensitivity to lactose will find isolate formats particularly well suited to their needs — protein isolates are typically lower in lactose than whey concentrate, making them easier to digest for many people.
They're also a strong choice for people who train frequently and need a convenient, fast way to hit their daily protein targets. From endurance athletes to strength trainers and active individuals fitting workouts around a busy schedule, protein isolate powders slot easily into most lifestyles — mixed into water, milk, or blended into a smoothie.
When to Use Protein Isolate Powders
Post-workout is the most popular time to reach for a protein isolate powder. After training, many people look for a fast, convenient source of protein — and isolate powders, which are low in fat and typically low in carbohydrates, fit that window well. Protein contributes to the maintenance of muscle mass,2 making it a staple part of many athletes' post-session routines.
Beyond the gym, protein isolate powders work just as well between meals or as part of a higher-protein breakfast. Clear whey isolate formats — which mix into a light, refreshing juice-style drink rather than a thick shake — are especially popular during warmer months or for those who find traditional protein shakes too heavy. The versatility of the range means there's a format and flavour suited to almost any point in your day.
Protein Isolate Powders Benefits
Ultra-High Protein Content
Protein isolates go through additional filtration to remove fat and most lactose, leaving a product with a higher protein percentage per serving than standard concentrate. Impact Whey Isolate Powder, for example, delivers up to 26g of protein per serving — making it one of the most protein-dense options in the range. Protein contributes to a growth in muscle mass1 and to the maintenance of muscle mass.2
Lower in Fat and Lactose
The isolation process strips out most of the fat and lactose found in whey concentrate. That makes isolate powders a cleaner option for those managing their fat intake, as well as those who find standard dairy-based proteins harder to digest. Many people who experience mild discomfort with concentrate formats get on much better with an isolate.
Versatile Formats for Every Preference
Protein isolate powders aren't limited to thick, milkshake-style drinks. Clear whey formats use hydrolysed whey protein isolate to create a light, refreshing, juice-textured shake — a very different experience to traditional protein powders. Plant-based options like pea and soy isolate are also available, meaning the category covers a wide range of dietary preferences and goals.
Informed Choice Certified Options Available
For athletes who compete and need confidence in what they're consuming, Informed Choice certified options are available within the range. Informed Choice is a quality assurance programme that tests sports nutrition products for substances banned in sport — giving competitive athletes an extra layer of assurance when choosing their protein isolate powder.
Popular Picks
Impact Whey Protein Milkshake — If you want all the satisfaction of a proper milkshake with 20g of protein and zero added sugar for under 112 calories, Impact Whey Protein Milkshake is the one to reach for.
Impact Whey Isolate Powder — Impact Whey Isolate Powder is built for those who want ultra-high protein without the extras, packing up to 26g of fast-absorbing protein into just 109 calories per serving.
Clear Whey Protein Powder — Clear Whey Protein Powder delivers 20g of protein from hydrolysed whey protein isolate in a light, refreshing format that sits under 90kcal per serving and carries Informed Choice certification.
FAQs
What is protein isolate powder?
Protein isolate powder is a highly refined form of protein — typically whey, pea, or soy — that's been processed to remove most of the fat and lactose, resulting in a product with a higher protein percentage per serving than standard concentrate powders. Protein contributes to the growth and maintenance of muscle mass,1 making isolate powders a popular choice among athletes and active individuals looking for a lean, efficient protein source.
What's the difference between protein isolate and protein concentrate?
Protein isolate goes through additional filtration compared to concentrate, which removes more of the fat and lactose. This typically results in a higher protein content per serving and a product that's lower in calories. Concentrate retains more of the naturally occurring fats and carbohydrates from the original protein source. For those tracking macros tightly or with sensitivity to lactose, isolate is generally the more refined option.
What's the best protein isolate powder?
Impact Whey Isolate Powder is one of the most popular choices, delivering up to 26g of fast-absorbing protein per serving with an ultra-high protein content. For those who prefer a lighter, juice-style format rather than a traditional milkshake shake, Clear Whey Protein Powder offers 20g of protein per serving from hydrolysed whey protein isolate and carries Informed Choice certification — a strong option for athletes who compete.
Is protein isolate powder suitable for plant-based diets?
Whey-based isolates are derived from dairy, so they're not suitable for vegans. However, the range includes plant-based isolate options — including pea and soy protein isolate — that are completely dairy-free. These deliver protein from plant sources and are formulated to provide a comparable amino acid profile for those following a vegan or vegetarian lifestyle.
How much protein do isolate powders contain per serving?
Protein content varies by product, but isolate powders typically deliver more protein per serving than concentrate blends. Within this range, servings provide anywhere from 20g to 26g of protein — with Impact Whey Isolate Powder reaching up to 26g per serving. Exact figures are listed on each product's nutritional information panel, so it's worth checking the specific product you're considering.
Can I use protein isolate powder if I'm lactose intolerant?
Whey protein isolate is significantly lower in lactose than whey concentrate, because the filtration process removes most of the lactose along with the fat. Many people who find standard whey concentrate difficult to digest tolerate whey isolate more comfortably. For those with more pronounced sensitivities, plant-based isolate options — such as pea or soy protein isolate — are naturally dairy-free and lactose-free alternatives.
When is the best time to take protein isolate powder?
Post-workout is the most common time, but protein isolate powder can be used at any point in the day where you need to increase your protein intake — between meals, as part of breakfast, or as a convenient on-the-go option. Clear whey isolate formats, which mix into a light, refreshing drink rather than a thick shake, are particularly well suited to warmer conditions or for those who prefer something lighter after training.
Are protein isolate powders Informed Choice certified?
Some products within the range carry Informed Choice certification. Clear Whey Protein Powder, for example, is Informed Choice certified — meaning it has been batch-tested for substances prohibited in sport. This makes it a strong choice for competitive athletes who need confidence in the integrity of their supplements. Check individual product pages to confirm certification status for each product.
Who developed the protein isolate powders in this range?
The protein isolate powders in this range were developed by Myprotein's expert nutritionists. Every formula goes through rigorous development to ensure it meets the quality and protein content standards that athletes and active individuals expect — from the filtration process used to achieve high protein purity through to flavour and mixability.
How do I choose between whey isolate and clear whey isolate?
The main difference is texture and format. Traditional whey isolate powders like Impact Whey Isolate Powder mix into a creamy, milkshake-style drink and suit those who prefer a more filling, dessert-like shake. Clear Whey Protein Powder uses hydrolysed whey protein isolate to create a light, juice-textured drink — closer to a flavoured water than a protein shake. Both deliver a high protein content per serving; the choice comes down to personal preference and when you plan to use it.
1. Protein contributes to a growth in muscle mass.
2. Protein contributes to the maintenance of muscle mass.