10 Best Whey Isolate Protein Powder Without Artificial Sweeteners of 2025

Tested and Reviewed: Top 10 Whey Isolate Protein Powder Without Artificial Sweeteners deals with expert ratings from 8.1 to a perfect 10

October 2025 Edition

Editor's Choice

9.7

Save 18%

Isopure

Isopure Zero Carb 100% Pure Whey Isolate Protein Powder, Lactose Free, Gluten Free, With Vitamins, Unflavored, 25g Protein Per Serving, 1 Lb, 16 Servings

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Editor's bottom line:

“This whey isolate protein powder without artificial sweeteners is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

One 1 lb bag (16 servings) of Isopure 100% pure whey isolate protein powder to help support daily health and overall wellness; no flavor added
25 grams of 100% pure whey protein isolate powder is the ideal choice for men and women looking to maintain a high-protein intake to meet their daily protein needs
Stick to your wellness goals with a zero carb protein powder designed to help you maximize your protein intake without adding unnecessary carbs to your daily meals
Mix this sugar free whey protein powder with 6-8 fl oz of your favorite flavored beverage in a shaker or blender for a daily protein boost
Supporting everyday nutrition is easy for any lifestyle thanks to the blend of 8 ingredients in Isopures keto friendly protein supplement powder

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Picked by 346 people today

9.5

Ascent

Ascent 100% Whey Protein Powder - Post Workout Whey Protein Isolate, Zero Artificial Flavors & Sweeteners, Gluten Free, 5.5g BCAA, 2.6g Leucine, Essential Amino Acids, Unflavored 2 lb

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Main Highlights

Native Whey Protein Powder Isolate Blend - The least-processed unflavored whey protein available today, naturally higher in leucine for muscle synthesis. Mixes silky smooth every time with just cold water.
25g Protein Per Scoop - 5.5g Naturally Occurring BCAAs, and a clean, minimalist ingredient list. Certified Gluten Free and Informed Choice Certified. Lightly sweetened with stevia leaf extract.
Designed for Post Workout Recovery - Supports fitness goals with pure whey that rapidly digests to fuel muscle growth and recovery. A protein smoothie essential.
0g of Added Sugar, Zero Artificial Flavors and Sweeteners - Clean, pure protein that easily fits low carb and keto diets. Perfect for recipes & baking high protein snacks.
2 LB Whey Protein Powder with included scoop - Simple collapsible bag packaging for easier storage in small or irregular cabinets and drawers.

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9.5

Nutricost

Nutricost Grass-Fed Whey Protein Isolate (Vanilla) 5LBS - Non-GMO, Gluten Free, Natural Flavors

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Main Highlights

Grass-Fed Whey Protein Isolate
5LBS of Grass-Fed Whey Protein Isolate Per Bottle
Delicious Undenatured Vanilla Flavored Whey Protein Isolate
rBGH Free, Natural Flavors and Sweeteners, Non-GMO & Gluten Free
Made in a GMP Compliant, FDA Registered Facility

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9.2

Save 20%

It's Just!

It's Just! - 100% Whey Protein Concentrate, Made in USA, RBST/rBGH Hormone Free, Premium WPC-80, No Added Flavors or Artificial Sweeteners (1.25 Pound, Unflavored)

20% OffFree Shipping

Main Highlights

Pure Protein Powerhouse: Our unflavored whey protein concentrate is a premium source of high-quality protein, perfect for anyone looking to boost their daily protein intake. It contains pure undenatured, rBGH/rBST-free whey protein that retains its natural integrity and bioavailability.
Cold Processed: We take pride in our cold processing technique, which ensures that our whey protein is minimally processed and free from high heat or harsh chemicals. This gentle processing method preserves the protein's original nutritional value and amino acid profile.
Made in the USA: Trust in the quality and safety of our product, proudly made in the USA under strict manufacturing standards. Our facility is GMP compliant, ensuring that you're getting a product that meets the highest quality and purity standards.
Versatile and Customizable: Unflavored whey protein concentrate offers endless versatility. You can add it to your favorite smoothies, recipes, or beverages without altering their taste. Customize your protein intake to suit your unique dietary preferences and needs.
Support Your Active Lifestyle: Whether you're an athlete, fitness enthusiast, or simply looking to maintain a balanced diet, our undenatured whey protein concentrate can help you meet your protein goals. Fuel your body with the essential amino acids it needs to support muscle recovery and overall wellness.

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Best Value

9.0

Save 22%

NATURE TARGET

NATURE TARGET Whey Isolate Protein Powder, Unflavored, 25g Protein, Low Carb Protein Powder, Sugar-Free, for Men & Women, 5.5g BCAAs, Rich in Fibers & Minerals, 1.1 Pound (500g)

22% OffFree Shipping

Main Highlights

Whey Protein Isolate: 25g of protein and 5.5g of BCAAs per serving, the protein powder combines fast and slow-absorbing proteins, delivering a premium taste and a more comprehensive source of protein for fueling muscle growth. Studies indicate that blends enhance mass gains to a greater extent than standalone standard whey protein.*
Unflavored Protein Powder: Made with natural grass fed whey protein powder, hormone-free, utilizing cold processing techniques to preserve maximum nutritional benefits, aiding in rapid post-workout recovery, optimizing muscle repair, retention, and growth, repairing muscle tissue and reducing post-exercise soreness
Whey Isolate Protein Powder: Specifically included pea protein powder, a moderately digestible protein with three times the arginine content per gram compared to whey protein. Pea protein helps soothe post-workout muscles and provides benefits to the tired body due to intense physical activity
Digestive Wellness: Our formula features a balanced blend of animal and plant-based proteins, fortified with fibers to diminish the likelihood of bloating or abdominal discomfort. Pea protein powder boasts a digestion rate of 94%, it minimizes the burden on the intestines, mitigating all potential adverse effects associated with pure protein, such as bloating and gas
Protein Powder Unflavored: Sugar free, low-fat, low-calorie, and free from chalky aftertaste and artificial sweeteners, without any artificial flavors or hormones. Supports muscle growth and recovery, protein powder for women, the ideal fitness companion for those striving to enhance strength and physique
Simple, Clean, High Protein Powder: Derived from nature, this isolate protein powder features grass fed protein powder and organic pea protein powder, free from hormones. It undergoes rigorous GMP and third-party testing to ensure quality and purity
Low Calorie & High Satiety: Pea protein, being a moderately digestible protein, offers a longer-lasting feeling of fullness compared to pure whey protein. We've also included MCTs, to fight hunger and improve satiety throughout the day, helping to curb additional intake. Only about 95 calories per serving
Low Calorie & High Satiety: Pea protein, being a moderately digestible protein, offers a longer-lasting feeling of fullness compared to pure whey protein. We've also included MCTs, to fight hunger and improve satiety throughout the day, helping to curb additional intake. Only about 95 calories per serving
Satisfaction - If you find that the flavor does not meet your expectations, please do not hesitate to LET US HELP YOU, your 100% is our top priority
The production date is located on the bottom of the bottle. Due to our dark bottle design, the text may appear faint under bright light. Simply adjust your viewing angle or check under moderate lighting to read it clearly.

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8.8

Opportuniteas

Opportuniteas Grass Fed Chocolate Whey Protein Isolate Powder - 20g Protein Powder Without Artificial Sweeteners, Hormone-Free Happy Cows, Non GMO - 1lb

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Main Highlights

PREMIUM CHOCOLATE PROTEIN - High-quality foods are much different than highly-processed foods. We use four premium real food ingredients so you can get protein powder that tastes like delicious chocolate milk without any artificial sweeteners or flavorings.
GRASS FED WHEY PROTEIN + ORGANIC CACAO - Start your day with delicious chocolate protein. When you taste the sweet, refreshing flavor you won't want any other protein powder. Our protein doesnt contain any artificial ingredients so it tastes great and mixes well with a wide variety of drinks, smoothies, shakes, cooking, or baking recipes.
NO ARTIFICIAL INGREDIENTS - Dont risk your health with artificial ingredients! We use four premium real food ingredients to make our chocolate protein powder. Our whey protein isolate comes from pasture raised and grass fed cows. We add organic extra rich cacao for the chocolatey flavor, sweet organic cane sugar, and finish with a pinch of Himalayan salt.
BOOST YOUR WORKOUT, NOT YOUR APPETITE - Energize instantly with 19 grams of pure protein per serving. You'll take your recovery and strength to a whole new level. Dont worry about feeling sluggish or hungry at the gym again! Chocolate protein powder can help you recover quickly. Dont miss your fitness goals this year.
MADE THE RIGHT WAY - At Opportuniteas we make effective, transparent, and affordable products you can confidently recommend to your family. We are committed to making a positive impact on people and our planet. As a proud member of the 1% for the Planet network we donate 1% of our profits to help solve our planets most pressing issues. If you don't love our product, we offer a no-questions-asked full refund.

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8.6

TGS Nutrition

TGS Nutrition Whey Protein Powder Unflavored, Unsweetened, Keto Friendly - 2lb - Low Carb, Low Calorie, No Soy, Made in USA

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Main Highlights

PURE WHEY, ONLY 2 INGREDIENTS: 25g of protein - NO added sugars, artificial sweeteners, fillers, artificial colors, flavors, additives or preservatives; , gluten free, stevia free, rbgh/rbst hormone free, Non GMO. Made in the USA. Sourced only from the US.Great clean alternative to organic and grass fed whey protein powder
NO BAD AFTERTASTE, NOT GRITTY, GRAINY: Smooth; Adds great consistency to smoothies; Mixes well; No clumps in a shaker cup; Each scoop contains 25 grams of protein, the full spectrum of all 9 essential amino acids; A great choice for post workout muscle recovery, building lean muscle, homemade meal replacement shakes and general fitness
LOW CARB, KETO & VEGETARIAN FRIENDLY: For MEN and WOMEN from fitness enthusiasts to bodybuilders looking to improve their overall fitness, build & maintain lean muscle; Great for keto or other strict low carb diets. Our low calorie whey makes it great for weight loss plans and meal replacement shakes
ADD PROTEIN TO FOOD, COOKING & BAKING: Flavorless, Unsweetened whey is great for adding to oatmeal, cereal, yogurt, soup, pancakes, breads, cookies, protein bars, and much more; Making home protein packed snacks has never been easier
NEVER GET TIRED OF THE SAME FLAVOR: Why no flavor? Have the flavor you want when you want it; Before or after a workout, plain in water or get creative with your own flavors - Liquid flavoring/ sweeteners, powdered flavors/sweeteners, make it quick and easy to create custom flavored drinks; Have a vanilla coffee protein shake on Monday, strawberry banana protein smoothie on Tuesday, and a peanut butter chocolate protein drink on Friday

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8.3

Naked Nutrition

Naked Whey Isolate Protein - Only 2 Ingredients, 30g Grass-Fed Protein, Unflavored, Undenatured, No GMO, No Soy, Gluten-Free, No Preservatives - 28 Servings

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Main Highlights

ONLY TWO INGREDIENTS: Grass Fed Whey Protein Isolate and Sunflower Lecithin (to aid solubility). Naked Whey Isolate contains no artificial sweeteners, flavors, or colors and is GMO-Free, Soy Free and Gluten-Free.
NAKED MEANS NOTHING ARTIFICIAL: Our Unflavored Whey Protein Isolate Powder is sourced from happy, pasture-fed cows from New Zealand. Growth hormone free - no rBGH or rBST, only 100% clean protein.
MAXIMUM NUTRITION: 30g of Protein, 0g of Sugar, 0g of Carbs, 120 Calories, and 8.4g of BCAAs (branched-chain amino acids) per serving. Less than 0.1g of lactose per serving for easy digestion.
CHEMICAL-FREE & ULTRA-FILTRATION: Manufactured by ion exchange and ultra-filtration techniques, generating an un-denatured, soluble whey protein. And, unlike most whey isolate protein powders, our iso protein powder has been made using careful manufacturing processes to retain essential amino acids. Zero contamination from chemical detergents - no acid or bleach.
THE PERFECT ISOLATE PROTEIN: Use our whey protein powder isolate to create the ultimate pre and post workout whey shakes, smoothies, and recipes. Add two scoops to water or your favorite beverage and enjoy premium nutrition to take your workouts, gains, and recovery to new heights.

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8.1

BulkSupplements

BulkSupplements.com Whey Protein Isolate Powder - Unflavored Protein Powder, Whey Isolate Protein Powder - Whey Protein Powder, Gluten Free, 30g per Serving, 1kg (2.2 lbs) (Pack of 1)

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Main Highlights

Maximize your Potential: Enhance your active lifestyle with our Whey Protein Isolate powder, an tasteless protein powder, designed to support your strength and performance goals. Each serving delivers a substantial 30 grams dose, catering to both fitness enthusiasts looking to push their limits.
Versatile Protein Source: Whether you're an athlete, a sprinter, or someone simply looking to stay active, our Whey Isolate Protein powder, an unflavored protein powder, fits seamlessly into your regimen, adaptable to a wide range of dietary needs and preferences, especially not for people with dairy sensitivities.
Optimized in every Serving: Our Whey Protein Isolate powder, one of our Whey Protein powder, is unflavored and contains dairy, but also offering you a high-quality product that easily integrates with other supplements or your preferred shake or beverage.
Transparent and Trustworthy: Experience the confidence that comes with choosing a supplement that not only meets rigorous third-party testing but also upholds the principles of clarity and integrity in its formulation and production.
Commitment to Excellence: Produced in a facility compliant with strict cGMP standards, our Whey Protein Isolate, one of our protein powder unflavored, stands as a testament to our dedication to quality. You can trust in our product's consistency and excellence, batch after batch.

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8.1

Levels Nutrition

Levels Grass Fed Whey Protein Powder, No Artificials, 24G of Protein, Pure Chocolate, 5LB

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Main Highlights

LEVELS WHEY PROTEIN: Each scoop of Levels Pure Chocolate Whey contains 24g Protein, 5.4g BCAAs (branched-chain amino acids), and no added sugars. Trusted by athletes, fitness enthusiasts and daily grinders everywhere, our whey is crafted for everyones lifestyle.
NOTHING FAKE: Levels Whey is naturally delicious. That means no hormones, no GMOs, no added sugars, no soy, no gluten, no bleach, no fillers, and no artificial flavors or sweeteners.
SIMPLE & CLEAN: No fake chocolate flavor here. Levels Pure Chocolate Whey is made with delicious cold-pressed cacao and lightly sweetened with monk fruit extract.
QUALITY FIRST: Quality milk tastes better, way better. Thats why grass-fed hormone-free dairy is the only dairy we use to make our whey protein concentrate. Whey concentrate is the least processed form of whey, which means its loaded with high-quality complete protein and essential amino acids.
MADE IN THE USA: Levels Whey Protein is made in the U.S.A. and is undenatured to protect bioactivity and naturally occurring growth factors. Each batch is cold-process microfiltered and blended with non-gmo sunflower lecithin for that insanely easy mixing you expect.

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Our Best Overall Choice

Best Choice

9.7

Isopure

Isopure Zero Carb 100% Pure Whey Isolate Protein Powder, Lactose Free, Gluten Free, With Vitamins, Unflavored, 25g Protein Per Serving, 1 Lb, 16 Servings

18% OffFree Shipping

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

One 1 lb bag (16 servings) of Isopure 100% pure whey isolate protein powder to help support daily health and overall wellness; no flavor added
25 grams of 100% pure whey protein isolate powder is the ideal choice for men and women looking to maintain a high-protein intake to meet their daily protein needs
Stick to your wellness goals with a zero carb protein powder designed to help you maximize your protein intake without adding unnecessary carbs to your daily meals
Mix this sugar free whey protein powder with 6-8 fl oz of your favorite flavored beverage in a shaker or blender for a daily protein boost
Supporting everyday nutrition is easy for any lifestyle thanks to the blend of 8 ingredients in Isopures keto friendly protein supplement powder

Show Price

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