Are you trying to find whey protein isolates among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!
We investigated and evaluated a number of the top-selling whey protein isolates on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 20 hours of research and did 17 whey protein isolates tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!
An overview of our top picks
Table of contents
The best whey protein isolates you can buy today
- Dymatize ISO100 Gourmet Chocolate Protein Powder (20 Servings)
- Scientifically formulated with fast-digesting hydrolyzed whey protein isolate. Notice: Use this product as a food supplement only. Do not use for weight reduction
- 25 grams of protein, which includes 5.5 grams of branched-chain amino acids (BCAAs), & 2.6 grams of Leucine per serving
- Less than 1 gram of fat & sugar per serving
- Easy on the stomach and gluten free, with less than 1g of Lactose; sweeteners like sucralose, steviol glycosides are present
- 5 Pounds of Whey Protein Isolate
- Only The Best, High Quality Isolate
- 30 Grams of Protein Per Serving
- Serving Size: 1 Scoop (Included)
- Made in a GMP Compliant, FDA Registered Facility
- Packaging May Vary - New look, with the same trusted quality
- GOLD STANDARD 100% WHEY BLEND – 24g blended protein consisting of whey protein isolate, whey protein concentrate, and whey peptides to support lean muscle mass – they don't call it the GOLD STANDARD of quality for nothing
- OVER 5G OF BCAAS – help build lean and strong muscles with naturally occurring BCAAs
- 3-4G CARBS, 1-3G SUGAR, AND 1-1.5G FAT, GLUTEN FREE, No Sucralose in Double Rich Chocolate Flavor
- INSTANTIZED – improves mixability to prevent lumps and clumps
- BANNED SUBSTANCE TESTED – highest quality control measures so you feel comfortable and safe consuming the product
- 8 SIZES TO CHOOSE FROM – 1, 2, 5, and 10-pound options available
- OVER 20 DECADENT FLAVORS TO CHOOSE FROM
- ANY-TIME FORMULA – great before or after exercise, between meals, with a meal, or any time of day where you need extra protein in your nutrition
- Most Awarded, Best-Selling Whey Protein Powder On The Planet
- NOW Sports products are comprehensively tested so you can trust that our products are pure and effective for every level of athletics.
- PROTEIN POWDER WITH BCAAs: Whey Protein Isolate is a high-quality protein that is both bioavailable and easily digested.
- UNFLAVORED, NO ARTIFICIAL SWEETENERS: Mix one level scoop into your daily smoothie for 25 g of protein per serving.
- GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).
- Packaged in the USA by a family owned and operated company since 1968.
- ✔️ Great Source of Protein!: Protein is essential for building strong, lean muscles. Our Whey Protein Isolate, or Whey Protein Isolate unflavored powder, provides all the essential amino acids required for growth and maintenance of lean muscle mass, as well as branched chain amino acids (leucine, isoleucine, valine). It's the whey protein unflavored supplement you've been dreaming of!
- ✔️ Ideal for Muscle Recovery: One of the Whey protein available in the market, our Whey Protein Isolate powder, or Iso Protein powder, is one of the most quickly absorbed proteins available, making it the perfect choice for muscle recovery.* This Whey Protein powder Isolate supplement, which is a flavorless protein powder, helps to rebuild muscle tissue and promote growth, allowing you to achieve your goals faster.*
- ✔️ Perfect for Active Lifestyles: Whether you’re just enjoy regular exercise, this Unflavored Whey Protein powder, or Whey Protein Isolate powder, can help give you an edge. Enjoy all the benefits of branched chain amino acids (leucine, isoleucine, and valine) that can help maximize your potential without putting up with added sugar, artificial flavors and calories!
- ✔️ Pure, Unflavored & Clean Protein: Get all the protein you need without any added flavors or artificial sweeteners. Plus, our Whey Protein Isolate powder, or Whey Isolate Protein powder, is ideal for use in shakes, smoothies, baking and cooking as it mixes easily into liquids without clumping or lumping. And, its a great meal replacement or between meals to help maintain your caloric intake while still getting the nutrients you need from food.
- ⭐ High Quality: Get the perfect protein boost with our Whey Protein Isolate powder or Iso Whey Protein powder, a tasteless protein powder! We take great care to ensure our dietary supplements are top-notch, manufactured using cGMP standards and third-party tested at multiple stages for quality assurance.
- Ultrapure Grass-Fed Whey Protein Isolate Powder: Authentic ISO is a clean, delicious, fast-acting, and easily digestible whey protein powder made with ultrapure grass-fed whey protein isolate - Mother Nature’s ideal source of essential amino acids that drive lean muscle growth. Authentic ISO works quickly to replenish and repair lean muscle tissue, making it ideal for kickstarting the recovery process after a workout or any time you want a healthy protein source.
- 25g of Protein per Serving: Authentic ISO is not your typical cheap-grade whey protein powder. Our ultrapure whey protein isolate comes exclusively from grass-fed cattle that are never treated with synthetic chemicals or hormones to ensure a healthier and cleaner profile of nutrients. Each serving of Authentic ISO packs more than 25 g of delicious muscle-building protein with virtually no sugar or fat.
- Enhance Recovery, Increase Strength, and Perform Your Best: Authentic ISO protein powder gives you a highly bioavailable protein that is light on the stomach and goes down easily. No bloating, gas, or stomach cramps like you might experience from low-quality whey protein powders that are loaded with fillers and added sugars. Our grass-fed whey protein isolate goes to work rapidly so you can recover quicker, increase strength, and perform your best in the trenches and on the playing field!
- Rapid Absorption & Easy to Digest: A clean, delicious, rapidly absorbed, and easy-to-digest protein powder made with ultra-pure grass-fed whey protein isolate - nature's ideal source of essential amino acids that ignite muscle protein synthesis.
- Manufactured in a cGMP-Certified Facility: Unlike many dietary supplements, all Jacked Factory products are manufactured under stringent quality control standards to ensure proper purity and potency. This formula is completely free of harsh chemicals, fillers, and artificial food dyes.
- Naturally Flavored Clean Protein Powder: Made from naturally-fed, hormone-free whey, free of artificial sweeteners, food dyes, gluten, and preservatives. Transparent Labs 100% Grass-Fed Whey Protein Isolate is one of the cleanest proteins on the market.
- 28g of Protein Per Serving: Transparent Labs Whey Protein Isolate is sourced from 100% grass-fed, grass finished American dairy cattle. It contains one of the industry’s highest protein-by-weight ratios, and packs 28g of protein per serving with minimal sugar or fat.
- Enhance Recovery, Increase Strength: Transparent Labs 100% Grass-Fed Whey Protein Isolate gives you a highly bioavailable protein that is light on the stomach and goes down easily. This is the perfect protein for those who want to support recovery and promote muscle growth, while promoting overall health and longevity.
- Contains All Nine Essential Amino Acids: Protein is made up of amino acids, which are the building blocks of muscle proteins. Depending on where your protein comes from, it will contain different amounts of the various building blocks. All of our protein powders contain all nine essential amino acids in a balanced ratio to support muscle protein synthesis, so you can trust that our protein powders will help you reach your muscle building and fitness goals.
- Easily Digestible & Rapidly Absorbed: There’s nothing worse than the digestive discomfort often associated with trying to increase your protein intake. Our protein powder is designed with your digestive health in mind. No more bloating, gas, or digestive woes - just pure protein goodness that your body can readily utilize.
- Loaded With Whey Protein Isolate - Animal Whey protein powder is made up of the highest quality protein sources, and that starts with the first source being whey protein isolate Fast absorbing and very bio-available
- Packed With Digestive Enzymes - Not only is Animal Whey loaded with isolate protein but it also has the added benefit of digestive enzymes to help you get the most out of each scoop and puts the high quality protein to work quickly and efficiently
- Amazing Taste Profile - Animal Whey is formulated for an amazing taste and it mixes easily and smooth in your drink of choice No chunks, great flavor, no stomach bloating
- High Bioavailability Whey Protein - Each scoop of Animal Whey contains 25 grams of highly bio-available whey protein Our whey protein powder helps repair muscle tissue and reduces post-workout soreness so you can get back to the gym sooner
- High Quality Supplements - Animal Whey is manufactured in the United States in our own facilities We control the quality from start to finish, so you know exactly what is on the label, is what's in the bottle
- The cap colors on bottles may vary from the product image shown due to a new cap color transition that is currently in process
- Vitamin C and Zinc Provides Immune Support along with Vitamin E
- 100% WHEY PROTEIN ISOLATE - a high-quality protein source providing 25g per serving to support muscle building and recovery
- ZERO/LOW CARB OPTIONS- helps for those watching their calorie intakes. Note: Produced in a facility with soy, dairy, egg and wheat ingredients, peanuts and tree nuts. Use this product as a food supplement only. Do not use for weight reduction
- A PERFECT FIT - supports your active lifestyle and can be used post-workout, between meals, along with a healthy breakfast, or any time of day
- Added Vitamin and Mineral Blend. Note: Powders have a vitamin/mineral premix which is not soluble; they will be cloudy when dissolved
- KETO-FRIENDLY - this protein powder can help support your ketogenic macros
- Grass-Fed Whey Protein Isolate
- 5LBS of Undenatured Grass-Fed Whey Protein Isolate Per Bottle
- Unflavored (Natural flavor), Pure Whey Protein Isolate
- rBGH Free, Non-GMO & Gluten Free
- Made in a GMP Compliant, FDA Registered Facility
- MADE FROM HAPPY GRASS-FED, HORMONE-FREE COWS - Whey protein derived from conventional dairy farming may contain harmful substances since the cows can be subject to hormonal and antibiotic use, which may be stored in the human body and can affect the overall nutritional composition of the whey. Our whey comes from completely hormone-free cows, who get to freely graze on pasture 365 days a year, producing high-quality, more nutrient-dense whey isolate protein.
- UN-DENATURED, NO ADDED SUGAR, FLAVORS, OR PRESERVATIVES - Our unflavored 100% grass fed whey protein isolate powder is un-denatured (pure, with properly functioning proteins without any structural deformation, intact with all bioavailable nutrients and constituents), it does not have any added sugar, sweeteners, preservatives, colors, or flavorings.
- NO UPSET STOMACH – Simple ingredients means no upset stomach! Our ingredient list is 99% pure isolate protein powder and less than 1% non-GMO sunflower lecithin for easy mixing. You're getting the essential nutrients your body needs to thrive without any artificial fillers or flavors to get in the way.
- 28 GRAMS OF DELICIOUS WHEY PROTEIN - Opportuniteas offers one of the highest protein concentrations ensuring you get the protein your muscles need. If you are striving to build lean muscle, recover faster, or simply live a healthier lifestyle, this is for you. Mix it up with your shake, smoothie, drink, juice, or even add it to your cooking or baking recipes. Enjoy it however you like it and elevate your well-being.
- WE STAND BY OUR PRODUCT - At Opportuniteas we do things the right way. If for any reason you are not satisfied with our isolate whey protein, we will gladly accept it back and provide you with a full refund, no questions asked. Our protein has been tested by a third-party ISO-Certified laboratory, so you can trust that it meets our high standards of quality and safety.
- ⭐⭐⭐⭐⭐ Certified Grass Fed Whey Protein – We do one thing, and do it well: provide Grass·Fed Whey with the assurances to back it up! AGN Roots is the only Truly Grass·Fed Whey Certified with Informed-Sport & Informed-Protein. Our farms are Certified Animal Welfare Approved by A Greener World - Globally recognized as the only "Entire Life on Pasture-based" Animal Welfare Certification.
- ⭐⭐⭐⭐⭐ A Greener World Certified – AGN Roots Grass·Fed Whey Protein Powder unflavoured is sourced exclusively from Animal Welfare Approved Farms Certified by A Greener World, the Gold Standard of regenerative farming & humane food labels. Rest assured, your purchase is NOT supporting abusive CAFOs falsely marketing Whey as "grass-fed"; in fact, AGN Roots is the only Whey Protein Isolate recognized by the ASPCA's Shop with Your Heart Certified brand list!
- ⭐⭐⭐⭐⭐ Cold Processed & Undenatured – AGN Roots Protein Powder Whey utilizes preservation-based processing methods. An industry buzzword, albeit a very real subset of our processing method is known as "cold-processing" and ensures the highest naturally occurring & and undenatured macro-nutrients remain bioavailable. The moisture content varies around 5.4% due to not over-drying (competition is a dusty < 2%). Our protein is pouched fresh and smells of fresh dairy cream.
- ⭐⭐⭐⭐⭐ AGN Roots Difference – AGN Roots Grassfed Whey Protein Powder Isolate contains the highest natural concentration of BCAAs (6.5 grams) per 25 grams of protein compared to other so-called “grassfed” whey competitors. By Supporting passionate farmers who foster a stress-free natural environment for their herds throughout their lives, you can reap the benefits of whey containing 10% more BCAAs than the competition.
- ⭐⭐⭐⭐⭐ Best of the Bulks – Weighing in at 1 lbs. AGN Roots Grass Fed Whey Isolate Protein Powder Unflavored is more cost-effective per serving than the other premium competition offering 5lb tubs. It will arrive in an air-tight, thermally protected pouch, preventing heat and UV damage, ensuring all micro-nutrients are intact, and limiting the carbon footprint of a giant plastic tub.
- GRASS-FED: Natural whey protein powder comes from pasture raised, grass-fed, happy cows and is rBST- and rBGH-free (94 Servings)
- LOW CARB AND LOW CALORIE: Grass-fed whey protein isolate is suitable for those watching their macros. Our protein is STEVIA-SWEETENED, we do not add sugar or artificial sweeteners. Our product offers a pure stevia extract without erythritol, perfect for those who prefer a natural and healthy alternative to traditional sweeteners.
- PURE INGREDIENTS: Natural whey isolate is gluten-free and keto-friendly. It comes from pasture raised happy cows. Our protein is Orthodox Union Kosher Certified for Dairy and sourced from a country that has banned the use of artificial hormones for bovines; contains no fillers or artificial flavors
- ESSENTIAL AMINOS: Hormone-free grass-fed whey has 20g protein, 4.6g BCAAs, plus all the essential amino acids for optimal protein synthesis.
- LABELS MAY VARY: Natural isolate protein powder was recently certified by the American Vegetarian Association to be Vegetarian; We are updating our labels to reflect this information; You may receive a label without the badge; however, the ingredients have been approved by the American Vegetarian Association
- WHEY PROTEIN ISOLATE: GenOne whey isolate protein powder has 25g of protein per serving, perfect for a high protein snack, protein shake, protein drink before or after a workout, between meals, or any time of day you need a protein snack.
- 5.5G BCAAS PER SERVING: A protein powder and BCAA powder in one formula! Each serving has 5.5g of BCAAs to help you hydrate. A great protein powder for women and men. Each 2.25 lb tub goes a long way with 30 servings!
- NO ADDED SUGAR: No added sugars, low carb, and fat content make it a fast-digesting protein. Each serving of GenOne whey protein is only 136 calories, making it a low calorie protein powder.
- SUPPORTS MUSCLE STRENGTH: Added power foods like papain from papaya fruit help breakdown protein and efficiently deliver it to the muscle, helping your muscles recover from weight lifting, working out, or just for daily support and strength.
- VANILLA ICE CREAM: GenOne vanilla protein powder delivers a smooth vanilla ice cream taste that mixes seamlessly with water or milk to make a vanilla protein shake. Easily blends into a smoothie or smoothie bowl.
- 5 lbs of Dymatize Elite Whey Gourmet Vanilla Protein Powder (62+ Servings)
- 5.5g of Branched Chain Amino Acids (BCAAs) to help build muscle and aid in recovery; 2.7g of L-Leucine to support activation of Muscle Protein Synthesis
- Good pre, post-workout, or anytime for high-quality protein supplementation
- Packaging may vary
- Scientifically proven, fast-digesting, quick-absorbing, 100% whey protein
- CLEAN WHEY PROTEIN: Truly Grass Fed Certified, Non GMO Project Verified, Gluten free, Soy free, NSF Certified for Sport and Informed Choice for Sport Certified, with No added hormones, No antibiotics, No added sugars
- POST WORKOUT RECOVERY: Our Garden of Life Sports Whey Protein Isolate helps you refuels & repair muscles after a hard workout with 24g Grass Fed Whey, 4g Glutamine and over 6g BCAA amino acids
- IMMUNE SYSTEM SUPPORT: This protein shake supports your immune system during a taxing training regimen or dieting cycle; rBST, rBGH and antibiotic free, un-denatured, cold-processed, micro-filtered, Non-GMO Project Verified and BSE free
- VANILLA PROTEIN POWDER: Our whey isolate protein powder helps reduce recovery time after a workout, helping you get back to training faster
- PROTEIN FOR A LEAN BODY: This protein powder for men and women can be used within an hour after a workout or throughout the day to combat hunger and improve satiety
- WHEY PROTEIN POWDER – MuscleTech Nitro-Tech Whey Gold features whey protein isolate and peptides, this ultra-pure, rapidly absorbed and quickly digested protein is engineered to support fast recovery, helping you build more lean muscle
- PROTEIN POWDER for LEAN MUSCLE – Whey peptides promote rapid recovery from exercise and support an insulinogenic response for improved nutrient delivery for men & women. Builds lean muscle, increases strength and enhances performance
- FAST RECOVERY – MuscleTech Nitro-Tech Whey Gold has 24g of protein, 4g of glutamine & precursor and 5.5g of BCAA for better muscle protein synthesis and recovery
- ABSORBS FAST and DIGESTS EASY – Nitro-Tech Whey Gold uses a superior cold microfiltration process to give you a higher quality whey protein powder by
- DAILY WORKOUT SUPPLEMENTS – Mix 1 scoop with 6 oz of cold water or skim milk between meals & before and after exercise. Clean ingredients. No fillers. Gluten-free
- High Quality Hydrolyzed & Ultra-Filtered Whey Protein Isolate
- 25 Grams of Protein Per Serving
- 5.5 Grams of Naturally Occurring BCAAs per Serving
- 1 Gram of Carbohydrates Per Serving
- Banned Substance Tested
- Ultimate Muscle Builder: MuscleTech Nitro-Tech is the choice protein for athletes, bodybuilders & fitness enthusiasts. Backed by decades of research & innovation, it supports muscle building, strength, and recovery. Vanilla Cream. 40 scoops per tub.
- Advanced Formula: Nitro-Tech features a unique blend of whey protein isolate and peptides, which are rapidly absorbed by the body to help support muscle growth and recovery. One scoop contains 30g of premium protein, plus 3g Creatine and 6.6g BCAAs.
- 70% Better than Regular Whey: In a 6-week, double-blind study, subjects using the key ingredient in Nitro-Tech gained 70% more lean muscle (8.8 vs. 5.1 lbs.) and increased their bench press more (34 vs 14 lbs.) than those using regular whey.
- Uncompromising Quality and Taste: Crafted using Multi-Phase Filtration Technology for clean, pure protein free of unwanted carbs and fat. MuscleTech has partnered with top flavor houses for years to ensure delicious taste in every serving.
- Pushing the Limits of Science and Human Potential: MuscleTech’s commitment to research, development, and innovation is the reason we continue to be an elite name for redefining performance through cutting-edge products and high-quality ingredients.
How to choose a good whey protein isolates
Does the idea of finding a fantastic whey protein isolates make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!
Your presence here indicates that you are interested in whey protein isolates. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top whey protein isolates products available right now. You might be wondering how we came up with the list. How was this buying guide developed?
First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top whey protein isolates on the market right now!
The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:
Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top whey protein isolates brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.
Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top whey protein isolates based on those.
Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.
Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.
Customer ratings: Would it be accurate to suggest that the whey protein isolates were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.
Customer Reviews: Like ratings, provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.
Seller Rank: This is very intriguing! Not only do you need a good whey protein isolates, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.
Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your whey protein isolates.
Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting whey protein isolates for months and years to come.
Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.
Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.
These are the standards by which we selected our whey protein isolates. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.
Why should you believe us?
There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what whey protein isolates should you purchase in 2022?
This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on whey protein isolates.
