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Updated: 08 Oct 2025

10 Best Whey Isolate Protein Powders

#1
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OPTIMUM NUTRITION Gold Standard 100% Whey Protein Powder, Vanilla Ice Cream, 2.27kg - [2024/2025 plastic neck band packaging may vary]

Brand: OPTIMUM NUTRITION
$147.95 ($6.52 / 100
⭐ 4.2
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    24 Grams of Protein per Serving to promote muscle strength and repair
  • 5.5 Grams of Naturally Occurring BCAAs per Serving to Support Endurance and Recovery
  • Represents the Gold Standard for protein quality
  • Whey Protein Isolate (WPI) main ingredient
  • Please note that packaging may vary; As part of our sustainability effort, we are removing the black plastic neck band and gold hologram from tubs of Gold Standard 100% Whey; This is a transition process so you may receive a tub with or without the neck band
  • Banned Substance Tested in accordance with the Informed Choice certification
  • Suggested use: Mix about one scoop of the powder into 180-240 ml of cold water, milk or other beverage; Stir, shake or blend until dissolved; For best results, mix up your shake 30 to 60 minutes after your workout or use as an anytime snack in your balanced diet
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#2
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Muscle Nation Milk Chocolate Flavour Whey Protein Isolate 990g (30 Serves)

Brand: Muscle Nation
$94.99 ($9.59 / 100
⭐ 4.8
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    100 Percent Whey Protein Isolate, perfect for post-workout recovery
  • Each serve provides 23.4g of protein for muscle growth
  • Contains 6.5g of BCAAs to support muscle recovery
  • Low lactose and gluten-free, suitable for dietary needs
  • Versatile for smoothies, breakfasts or on-the-go snacks
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#3
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Dymatize ISO100 - 100% Hydrolyzed Whey Protein Isolate - Chocolate Peanut Butter, 5lbs/2.3kg

Brand: Dymatize
$169.95 ($7.39 / 100
⭐ 4.1
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    High in essential amino acids and rich in glutamine peptides
  • 1 scoop provides 24 grams of ultra-high-quality whey protein
  • An effective way to build and maintain lean muscle mass
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#4
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OPTIMUM NUTRITION Gold Standard 100% Whey Protein Powder, Double Rich Chocolate, 2.27kg - [2024/2025 plastic neck band packaging may vary]

Brand: OPTIMUM NUTRITION
$147.95 ($6.52 / 100
⭐ 4.8
Read more
    24 Grams of Protein per Serving to promote muscle strength and repair
  • 5.5 Grams of Naturally Occurring BCAAs per Serving to Support Endurance and Recovery
  • Represents the Gold Standard for protein quality
  • Whey Protein Isolate (WPI) main ingredient
  • Please note that packaging may vary; As part of our sustainability effort, we are removing the black plastic neck band and gold hologram from tubs of Gold Standard 100% Whey; This is a transition process so you may receive a tub with or without the neck band
  • Banned Substance Tested in accordance with the Informed Choice certification
  • Suggested use: Mix about one scoop of the powder into 180-240 ml of cold water, milk or other beverage; Stir, shake or blend until dissolved; For best results, mix up your shake 30 to 60 minutes after your workout or use as an anytime snack in your balanced diet
Check Price
#5
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EHP Labs ISOPEPT Hydrolyzed Whey Protein Powder - 100% Whey Protein Isolate & Hydrolysate, 25g of Protein, Non-GMO, Gluten Free, Fast Absorbing, Easy Digesting, 25 Serves, Vanilla Ice Cream

Brand: EHP LABS
$69.95
⭐ 4.1
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    Super High Quality Protein (Non-GMO) - Our formula consists of 25g of the highest quality protein from Whey Protein and Hydrolyzed Whey Protein Isolate; premium forms of protein that are rapidly absorbed and nutrient rich sources of high quality protein peptide fractions to replenish your fatigued muscles with a direct source of fuel for growth and repair. These make IsoPept perfect as your post-workout shake.
  • Alkalizing/Anti-Cramping Blend - We want your protein powder to work as hard as you do! You go to the gym to be well so why not let your protein powder help you? With a B-Vitamin blend to give you the energy and vitality you need. Vitamin C and Zinc to support your immune system and keep you in tip top shape. An electrolyte blend including potassium, calcium and magnesium to assist with relieving cramps, reduce muscle soreness and rehydrate you post workout.
  • Anti-Bloat & Easy To Digest- Some people find protein powders can make them bloated or sluggish... Weve thought of the potential issues and solved them for you already by adding in the essential digestive enzymes to reduce bloating and improve digestive comfort.
  • Cortisol Blockers - Life can be stressful so weve added in Ashwagandha and Theanine to help you relax and destress after an intense workout.
  • Easy to Take - ISOPEPT is best taken within 45 minutes after a workout to help replenish protein stores. Best mixed with 8oz or 240mL of water!
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#6
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Pure Product Australia - Whey Protein Concentrate & Isolate - 100% Premium Grass Fed AU & NZ Whey - 24g Protein per Serve - Non GMO - 1kg (33 Servings) - Vanilla

Brand: Pure Product Australia
$50.95 ($5.10 / 100
⭐ 4.1
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    Whey Protein Isolate (WPI) Main Ingredient.
  • Whey Protein Microfractions from Whey Protein Isolates & Ultra-Filtered Whey Protein Concentrate.
  • Over 4 Grams of Glutamine & Glutamic Acid in Each Serving.
  • More Than 5 Grams of the Naturally Occurring Branched Chain Amino Acids (BCAAs) Leucine, Isoleucine, and Valine in Each Serving.
  • *This item does not include a measuring scoop.
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#7
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Pure Product Australia - Whey Protein Concentrate & Isolate -100% Premium Grass Fed AU & NZ Whey - 24g Protein per Serve - Non GMO - 1kg (33 Servings) - Chocolate

Brand: Pure Product Australia
$46.00 ($4.60 / 100
⭐ 4.1
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    Whey Protein Isolate (WPI) Main Ingredient.
  • Whey Protein Microfractions from Whey Protein Isolates & Ultra-Filtered Whey Protein Concentrate.
  • Over 4 Grams of Glutamine & Glutamic Acid in Each Serving.
  • More Than 5 Grams of the Naturally Occurring Branched Chain Amino Acids (BCAAs) Leucine, Isoleucine, and Valine in Each Serving.
  • *This item does not include a measuring scoop.
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#8
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OPTIMUM NUTRITION Gold Standard 100% Isolate Protein Powder, Chocolate Flavour, 1.36kg - [2024/2025 plastic neck band packaging may vary]

Brand: OPTIMUM NUTRITION
$129.38 ($9.51 / 100
⭐ 4.7
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    Promotes muscle strength and repair
  • Represents the highest possible standard of protein purity
  • 25 g of hydrolysed and ultra-filtered whey protein isolates
  • 1 gram of carbohydrates
  • Please note that packaging may vary; As part of our sustainability effort, we are removing the black plastic neck band and gold hologram from tubs of Gold Standard 100% Whey; This is a transition process so you may receive a tub with or without the neck band
  • 11.4 Grams of Naturally Occurring Essential Amino Acids per Serving
  • 4.3 Grams of Naturally Occurring Glutamine & Glutamic Acid per Serving
  • 5.5 Grams of Naturally Occurring BCAAs per Serving
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#9
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MuscleTech Whey Protein, Nitro-Tech Whey Isolate + Peptides, Lean with Creatine, Sports Nutrition for Men & Women, Vanilla, 1.81kg (40 Servings)

Brand: MuscleTech
$124.97 ($6.90 / 100
⭐ 4.8
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    30 Grams of Whey Protein, Primarily from Whey Protein Peptides and Whey Protein Isolate
  • Most Powerful Protein Powder - Core Ingredients in Nitro Tech Protein Powder Scientifically Shown to Build 70 Percent More Muscle than Regular Whey Protein Alone
  • 5 Grams of Glutamine & Precursor, 6.8 Grams of BCAA Aminos Plus a Clinically Studied 3 Gram Dose of HPLC-Tested Creatine Monohydrate in Each Serving
  • Delicious Tasting Protein Powder Featuring Premium Whey Protein for Easy Mixing and Digestion
  • The Whey Protein in Nitro Tech is Ultra-Filterd for a Whey Protein Isolate that Contains Less Fat, Lactose and Impurities than Other Cheaper Protein Powder Formulas
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#10
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Pure Product Australia - Whey Protein Isolate & Hydrolyzed - 100% Premium Grass Fed - 30g Protein per Serve, Fast Absorbing - Non-GMO - Easy Digesting - 1kg (30 Servings) - Vanilla

Brand: Pure Product Australia
No Price
⭐ 4.4
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    100% Grass -Fed Whey Protein Isolate (WPI) & Hydrolyzed
  • 30 Grams Of proteins per serving.
  • Over 5 Grams of Glutamine & Glutamic Acid in Each Serving.
  • More Than 6 Grams of the Naturally Occurring Branched Chain Amino Acids (BCAAs) Leucine, Isoleucine, and Valine in Each Serving
  • *This item does not include a measuring scoop.
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