Rule 1 Whey Isolate

This formula uses isolated whey sources rather than whey concentrate. It supplies a complete amino acid profile, including naturally occurring essential and branched-chain amino acids. Naturally flavored options have their own ingredient declarations; they should be checked separately from the standard flavored range.

Mix about one scoop with 180–240 mL (6–8 fl oz) of cold water, milk or your preferred beverage. Shake or stir until smooth. It can also be mixed into yogurt or a smoothie. Choose the amount and timing that fit your overall dietary protein needs; added foods change the finished nutrition values.

Standard small packs are approximately 28 servings, while larger standard packs vary by flavor. The naturally flavored Dark Chocolate and Unflavored products use separate 1.5 lb and 4 lb pack options. At one serving daily, the labeled serving count gives the approximate number of days. Check the selected flavor label for exact net weight and scoop size. Orange Dreamsicle is offered in the smaller pack.

Amounts per full labeled serving: 1 scoop, measured to the selected flavor’s gram weight.

Calories and protein are shown per powder serving. The complete flavor panel also lists fats, carbohydrates, sugars, sodium and other nutrients.

Ingredients — Lightly Salted Caramel: Protein Blend (Whey Protein Isolate, Hydrolyzed Whey Protein Isolate), Contains 2% or Less of Natural and Artificial Flavors, Salt, Cocoa (Processed with Alkali), Sucralose, Acesulfame Potassium, Soy Lecithin, Sunflower Lecithin. Contains: Milk & Soy.

Ingredients — Chocolate Fudge: Protein Blend (Whey Protein Isolate, Hydrolyzed Whey Protein Isolate), Cocoa (Processed with Alkali), Contains 2% or Less of Natural and Artificial Flavors, Sucralose, Salt, Acesulfame Potassium, Soy Lecithin, Sunflower Lecithin. Contains: Milk & Soy.

Ingredients — Fruity Cereal: Protein Blend (Whey Protein Isolate, Hydrolyzed Whey Protein Isolate), Contains 2% or Less of Natural and Artificial Flavors, Beet Root Powder (Color), Sucralose, Acesulfame Potassium, Soy Lecithin, Sunflower Lecithin. Contains: Milk & Soy.

Ingredients — Vanilla Cream: Protein Blend (Whey Protein Isolate, Hydrolyzed Whey Protein Isolate), Natural and Artificial Flavors, Contains 2% or Less of Sucralose, Acesulfame Potassium, Soy Lecithin, Sunflower Lecithin. Contains: Milk & Soy.

Ingredients — Chocolate Peanut Butter: Protein Blend (Whey Protein Isolate, Hydrolyzed Whey Protein Isolate), Cocoa (Processed with Alkali), Natural and Artificial Flavors, Contains 2% or Less of Salt, Sucralose, Acesulfame Potassium, Soy Lecithin, Sunflower Lecithin. Contains: Milk & Soy.

Ingredients — Cookies & Cream: Protein Blend (Whey Protein Isolate, Hydrolyzed Whey Protein Isolate), Natural and Artificial Flavors, Contains 2% or Less of Cookie Pieces (Tapioca Starch, Rice Flour, Sugar, Cocoa [Processed with Alkali], Palm Oil, Salt, Chocolate Liquor, Natural Flavor, Sodium Bicarbonate), Sucralose, Acesulfame Potassium, Soy Lecithin, Sunflower Lecithin. Contains: Milk & Soy.

Ingredients — Strawberries & Cream: Protein Blend (Whey Protein Isolate, Hydrolyzed Whey Protein Isolate), Natural and Artificial Flavors, Contains 2% or Less of Beet Root Powder (Color), Sucralose, Acesulfame Potassium, Soy Lecithin, Sunflower Lecithin. Contains: Milk & Soy.

Ingredients — Strawberry Banana: Protein Blend (Whey Protein Isolate, Hydrolyzed Whey Protein Isolate), Natural and Artificial Flavors, Contains 2% or Less of Malic Acid, Beet Root Powder (Color), Sucralose, Citric Acid, Acesulfame Potassium, Soy Lecithin, Sunflower Lecithin. Contains: Milk & Soy.

Ingredients — Café Mocha: Protein Blend (Whey Protein Isolate, Hydrolyzed Whey Protein Isolate), Cocoa (Processed with Alkali), Contains 2% or Less of Natural and Artificial Flavors, Sucralose, Acesulfame Potassium, Soy Lecithin, Sunflower Lecithin. Contains: Milk & Soy.

Ingredients — Vanilla Butter Cake: Protein Blend (Whey Protein Isolate, Hydrolyzed Whey Protein Isolate), Natural and Artificial Flavors, Contains 2% or Less of Sucralose, Soy Lecithin, Sunflower Lecithin. Contains: Milk & Soy.

Ingredients — Mint Chocolate Chip: Protein Blend (Whey Protein Isolate, Hydrolyzed Whey Protein Isolate), Cocoa (Processed with Alkali), Contains 2% or Less of Natural and Artificial Flavors, Sucralose, Salt, Acesulfame Potassium, Soy Lecithin, Sunflower Lecithin. Contains: Milk & Soy.

Ingredients — Natural Dark Chocolate: Protein Blend (Whey Protein Isolate, Hydrolyzed Whey Protein Isolate), Cocoa (Processed with Alkali), Natural Flavors, Contains 2% or Less of Stevia Leaf Extract, Salt, Soy Lecithin, Sunflower Lecithin. Contains: Milk & Soy.

Ingredients — Unflavored: Whey Protein Isolate, Hydrolyzed Whey Protein Isolate, Contains Less Than 2% of Soy Lecithin, Sunflower Lecithin. Contains: Milk & Soy.

Ingredients — Pistachio Ice Cream: Protein Blend (Whey Protein Isolate, Hydrolyzed Whey Protein Isolate), Natural and Artificial Flavors, Contains 2% or Less of Sucralose, Acesulfame Potassium, Beta Carotene (Color), Blue Spirulina (Color), Soy Lecithin, Sunflower Lecithin. Contains: Milk & Soy.

Ingredients — Banana Creme: Protein Blend (Whey Protein Isolate, Hydrolyzed Whey Protein Isolate), Contains 2% or Less of Natural and Artificial Flavors, Sucralose, Acesulfame Potassium, Soy Lecithin, Sunflower Lecithin. Contains: Milk & Soy.

Ingredients — Orange Dreamsicle: Protein Blend (Whey Protein Isolate, Hydrolyzed Whey Protein Isolate), Natural and Artificial Flavors, Contains 2% or Less of Sucralose, Beet Root Powder (Color), Acesulfame Potassium, Beta Carotene (Color), Soy Lecithin, Sunflower Lecithin. Contains: Milk & Soy.

Allergen declaration: milk and soy. These milk-derived powders are not suitable for a milk allergy. Use the label for the exact flavor and pack when checking any other dietary requirement.

Daily Values, where printed on the full label, use the manufacturer’s reference values. A blend’s stated weight refers to the whole blend, not to each ingredient in it.

Serving amounts above follow the matching manufacturer label. Choose Nutrition Facts to open the formula panel and View Product to return to the product photo. For dietary requirements, compare the full ingredients and allergen statement on your current pack.

Rule One identifies this product as Informed Choice certified, with regular banned-substance testing by LGC. Check the certification directory and the logo on your selected product when this is relevant to your sport.

Manufacturer product and label information

Open a larger copy of the matching label:

• Lightly Salted Caramel — Approx. 5 lb
• Chocolate Fudge — Approx. 5 lb
• Fruity Cereal — Approx. 5 lb
• Vanilla Cream — Approx. 5 lb
• Chocolate Peanut Butter — Approx. 5 lb
• Cookies & Cream — Approx. 5 lb
• Strawberries & Cream — Approx. 5 lb
• Strawberry Banana — Approx. 5 lb
• Café Mocha — Approx. 5 lb
• Vanilla Butter Cake — Approx. 5 lb
• Mint Chocolate Chip — Approx. 5 lb
• Natural Dark Chocolate — 4 lb • Naturally Flavored
• Unflavored — 4 lb • Naturally Flavored
• Pistachio Ice Cream — Approx. 5 lb
• Banana Creme — Approx. 5 lb
• Orange Dreamsicle — Approx. 2 lb

How is this different from Rule 1 Whey Protein?
Whey Isolate uses isolate and hydrolyzed isolate. Rule 1 Whey Protein also includes whey concentrate.

Which flavor and size options can I choose?
Pistachio Ice Cream and Banana Creme are available in both standard pack sizes. Orange Dreamsicle is available in the Approx. 2 lb pack. Natural Dark Chocolate and Unflavored use the 1.5 lb and 4 lb pack options. Select your flavor under Flavor and a compatible size under Pack Size.

Is every flavor dairy-free or lactose-free?
No. This is a milk-derived protein. Do not assume a flavor is dairy-free, lactose-free or suitable for a milk allergy; read its label.

For adults. Consult a healthcare professional before use if pregnant, nursing, taking medication or managing a medical condition. Do not exceed the directions on your selected pack.

Keep out of reach of children. Store tightly closed in a cool, dry place, following the packaging instructions. Dietary supplements are not intended to diagnose, treat, cure or prevent disease.