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5 Best Isolate Whey Proteins of 2025

Last Updated - 2025/10/01

1
Best Choice

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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.

Dymatize

ISO100 Hydrolyzed Protein Powder by Dymatize, Gourmet Chocolate, 100% Whey Isolate Protein Powder (25g), Gluten Free, 5lb, 71 Servings

Dymatize

CA$212.11

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Main highlights
- YOU MIX YOUR WAY: Mix with water, almond milk, oat milk, or your favorite liquid for a delicious drink. Add it to overnight oats, pancakes, or waffles to give your protein-packed meal to kick start your day.
- WITH YOU, WE PUSH WHAT IS POSSIBLE: Just like you push to improve, Dymatize pushes protein to the next level. One of the best protein powders in the game, it’s filtered to remove excess lactose, carbs, fat, and sugar for maximum gains.
- SIMPLE: 25g of protein, 1g of fat, 1g of sugar, gluten free, and less than 120 calories, ISO100 whey protein provides a simple macro.
- OUR BEST-QUALITY PROTEIN: Dymatize ISO100 is our higest-quality protein, and it is designed to support muscle growth through rapid protein absorption. The protein is broken down into small peptides, facilitating faster digestion and absorption.
- FOR EVERYONE: This protein powder that is Made in the USA is ideal for everyone. Whether you’re at the beginning of your exercise journey, maintaining a healthy lifestyle, gym veteran, or need a quick meal replacement on the go, Dymatize is here.
CA$212.11
2

✖
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.

PERFECT SPORTS

DIESEL 100% New Zealand Whey Isolate, Grass-Fed & Pasture Raised - French Vanilla 5lb

PERFECT SPORTS

CA$149.72

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Main highlights
- Naturally Sweetened with Stevia – ZERO Sugar, ZERO Fat, ZERO Carbs
- Informed Choice 3rd Party WADA Banned Substances Free Tested
- 100% Sourced from New Zealand Grass-Fed & Pasture Raised Dairy
- 100% New Zealand Whey Protein Isolate
CA$149.72
3
Best Value
19% Off

✖
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.

Optimum Nutrition
19% Off

Optimum Nutrition Gold Standard 100% Whey Protein Powder, 2.270g - Vanilla Ice Cream - 73 servings (packaging may vary)

Optimum Nutrition

CA$100.79

CA$124.99
(19% Off)

More Details
Main highlights
- Packaging may vary New look, with the same trusted quality
- Over 5 grams of BCAAS help build lean and strong muscles with BCAAs. 34 grams carbs, 13 grams sugar, and 11.5 grams fat, gluten free, no sucralose in Vanilla Ice Cream flavor. Notice: Do not use as a sole source of nutrition
- Most awarded, bestselling whey protein powder on the planet. Banned substance tested highest quality control measures so you feel comfortable and safe consuming the product
- Gold standard 100% whey blend 24 grams 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
- Anytime formula Great before or after exercise, between meals, with a meal, or any time of day where you need extra protein in your nutrition
CA$100.79
CA$124.99 (19% Off)
4

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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.

Optimum Nutrition

Optimum Nutrition Gold Standard 100% Isolate Protein Powder | Fast Digesting Ultra Filtered Whey Protein Isolate | 25g Protein, 5.5g BCAAs | Gluten Free (44 Servings, Rich Vanilla)

Optimum Nutrition

CA$98.05

CA$105.52
(7% Off)

More Details
Main highlights
- ULTRA FILTERED WHEY: Gold Standard 100% Isolate Whey Protein Powder employs a cutting-edge separation process that removes excess fat, cholesterol, sugars, and other materials
- SMOOTH & DELICIOUS: Gold Standard 100% Isolate Whey Protein Powder features a silky-smooth texture, and easy mixing with only a glass and spoon, you’ll always look forward to getting the protein you want
- PURE WHEY PROTEIN: Gold Standard 100% Isolate Whey Protein Powder is a pure whey isolate protein powder sourced from Hydrolyzed Whey Protein Isolate and Whey Protein Isolate
- 5.5G NATURALLY OCCURRING BCAAS: Gold Standard 100% Isolate Whey Protein Powder is a high protein whey that also features 5.5g of naturally occurring BCAAs per serving
- 25G PROTEIN: Gold Standard 100% Isolate Whey Protein Powder is a high protein isolate sourced whey. Gold Standard 100% Isolate Whey Protein is ultra-filtered for exceptional purity
CA$98.05
CA$105.52 (7% Off)
5

✖
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.

PVL

PVL ISOGOLD – Grass Fed - Premium Isolate 100% Whey Protein Shake (2.27 kg (Pack of 1), Chocolate)

PVL

CA$124.99

More Details
Main highlights
- QUALITY WHEY | Premium Whey with Zero Filler with Superior Whey Isolate & Hydrolysate Technology
- PROTEIN | With 27 grams of great-tasting protein isolate per serving
- PROBIOTICS | Contains clinically proven, 1 billion CFU Super Probiotic - DE111. Shelf stable!
- INFORMED CHOICE TESTED I Strictly lot tested so all athletes can be confident they will not fail a drug test. What’s on the label is in the bottle.
- AMINO ACIDS | contains 6 g of naturally occurring BCAAs
CA$124.99

5 Best Isolate Whey Proteins of 2025

ISO100 Hydrolyzed Protein Powder by Dymatize, Gourmet Chocolate, 100% Whey Isolate Protein Powder (25g), Gluten Free, 5lb, 71 Servings

DIESEL 100% New Zealand Whey Isolate, Grass-Fed & Pasture Raised - French Vanilla 5lb

Optimum Nutrition Gold Standard 100% Whey Protein Powder, 2.270g - Vanilla Ice Cream - 73 servings (packaging may vary)

Optimum Nutrition Gold Standard 100% Isolate Protein Powder | Fast Digesting Ultra Filtered Whey Protein Isolate | 25g Protein, 5.5g BCAAs | Gluten Free (44 Servings, Rich Vanilla)

PVL ISOGOLD – Grass Fed - Premium Isolate 100% Whey Protein Shake (2.27 kg (Pack of 1), Chocolate)

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ProteinCo | Pure All Natural Grass-Fed New Zealand Whey Protein Isolate Powder | 27g per serving | Stevia | Gluten & Lactose Free | Low-Calorie | 4 Lbs (Vanilla)

ISO100 Hydrolyzed Protein Powder by Dymatize, Gourmet Vanilla, 100% Whey Isolate Protein Powder (25g), Gluten Free, 5lb, 76 Servings

ALLMAX Nutrition, Isoflex 100% Ultra-Pure Whey Protein Isolate, Vanilla, 2 lb

Limitless Pharma Pure Whey Isolate | High Protein Whey Isolate Powder | 27g Protein, 6g BCAAs, Sugar Free, Gluten Free, Low Carb, Low Lactose | 30 Servings, 2LB (Vanilla)

Revolution Nutrition, Iso Whey, Protein Powder, 100% Isolate, Premium Formula, Gluten Free, Low Carb, Promoting Lean Muscle Growth in Men & Women, 28g Of Protein Per Scoop, 908g, 27 Servings (Vanilla Cake, 2 Pound)

Schinoussa Super Foods New Zealand Whey Protein Isolate | 25g Protein | 0g Of Sugar | 1g Of Carbs | 110 Calories (Swiss Chocolte, 910 g (Pack of 1)

Progressive Grass-Fed 100% Whey Isolate Powder Unflavoured, with 35g of New Zealand Whey Concentrate per Scoop for Muscle Gain and Recovery, Pasture-Raised, Non-GMO, Antibiotic-Free, and Hormone-Free, 850g

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