Signature 100% Whey Protein Powder Signature

Signature 100% Whey Protein Powder

Blend of 3 Types of Whey for Ultimate Muscle Growth and Recovery*
25g of Muscle-Building Whey Protein*
8.8  out of 10  (712 Reviews)
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Product Overview

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Whey protein is the most important weapon in your muscle-building arsenal. It promotes muscle growth, counteracts muscle breakdown, and supports your workout recovery.*

Bonus: It’s also easy to digest and a source of powerful BCAAs.* Our Signature 100% Whey Protein combines three hard-hitting types of protein in one powerful blend. It’s perfect first thing in the morning, between meals, and especially after your workout. It’s so delicious, it’ll also slay that sweet tooth! Signature 100% Whey Protein tub


25g Whey Protein. 6g Hydrolysate. 13g Isolate. 6g Concentrate.


Great for low-carb diets, low in fat, and easily digested.*


Concentrate has a more balanced amount of proteins, carbs, and fats to fuel your workouts.*


This whey protein has been hydrolyzed, or broken down into strings of amino acids called peptides, for even faster absorption than standard whey!*


These enzymes help with the digestion of your protein.* In fact, they are clinically studied and shown to increase the uptake of amino acids into the blood by 20% compared to whey protein given alone.* Athlete

A signature is a promise. A symbol of your identity. Your mark on the world. In 1999, was founded on a single promise: Trust. It’s who we are and it’s in our blood. Our Signature line is built on the same promise. Every product is no-BS, transparent, filler-free, and formulated with effective doses of research-backed ingredients you can trust. We create the highest quality supplements, so you can focus on leaving a mark of your own.


Signature products are formulated with high quality ingredients at effective doses that we’re proud to share with you. We don’t hide anything in a “proprietary blend”, so you always know exactly what you’re putting into your body.


An effective dose is the amount of an ingredient that has been shown to deliver results. Some supplement brands add a sprinkle of an ingredient just so they can say it’s in the product. Signature supplements always include enough to get the job done.


Trendy, flash-in-the-pan ingredients come and go. But time-tested, gym-proven ingredients are what you need to help you achieve your fitness goals. That’s what you’ll find in Signature products because that’s what works.


Ratings & Reviews

Signature 100% Whey Protein Powder
Overall Rating
712 Ratings
Verified Buyer Rating
613 Ratings
Average Flavor Rating
10 Flavors
Top Rated Flavor
Birthday Cake
By clicking the button above, you agree to entering the Reviews section. Products in the Store are not intended to diagnose, treat, cure, or prevent any disease.
Jan 16, 2021
Verified Buyer
  • 10 Oatmeal Cookie
  • 9 Maple Glazed Donut
Jan 02, 2021
Verified Buyer
  • 9 Oatmeal Cookie

I love this product. It's a good price compared to other protein powders. I really enjoy a good post workout sake.

Dec 19, 2020
Verified Buyer
  • 9 Blueberry Cobbler

Great to make blueberry pancakes or waffles with.

Dec 17, 2020
Verified Buyer
  • 8 Blueberry Cobbler
  • 7 Maple Glazed Donut

Blueberry cobbler tastes exactly like blueberry cobbler, just a hint of bitterness at the end though but not too bad. Maple Glazed Donut did not really tastes like it but the taste isn't that bad. Would probably buy blueberry cobbler again.

Dec 15, 2020
Verified Buyer
  • 7 Oatmeal Cookie

Amazing value, especially considering it has a generous amount of isolate and hydrolysate. I swear the oatmeal cookie flavor tastes almost exactly like French Toast Crunch cereal from back in the day. It's got more of a maple syrup vibe to me, but still really good.

Dec 08, 2020
Verified Buyer
  • 10 Maple Glazed Donut

Does have a nice syrup maple flavor also really good for the black Friday sale

Dec 08, 2020
Verified Buyer
  • 8 Blueberry Cobbler

Blueberry Cobbler is best when used as a mixing agent (oats or a smoothie). I will consume it on its own with water but there are other flavors that are better by themselves (chocolate peanut butter).

Dec 04, 2020
Verified Buyer
  • 9 Blueberry Cobbler

Blueberry Cobbler is amazing when eaten in a protein sludge, which is how I take in most of my whey, Chocolate peanut butter is awesome as well that way like a desert. Add in some sugar free choco chips and it's good to go!

Nov 29, 2020
Verified Buyer
  • 4 Oatmeal Cookie
  • 7 Strawberry

Oatmeal has got to be the worst flavour protein ever. The strawberry is only okay but definitely better than oatmeal. My suggestion is go with the chocolate. When added to milk, these powders produce a thick consistency. I use a hand blender to mix these powders as I find that my shakers do not mix it well enough. I only bought these because they were on sale and I always like to have at least +15lbs of protein lying around. Usually I'd pick up ON GS but it never hurts to have variety in brand and price/quality.

Nov 22, 2020
Verified Buyer

Greatest protein ever! I have tried a lot of protein powders over my life of lifting. This isn't far the best! #1! Mixes great with water, and the chocolate peanut butter taste is honestly the best taste ever. No clumps, smooth texture going down. Highly recommended!

Nov 21, 2020
Verified Buyer
  • 10 Chocolate
  • 6 Vanilla

By far the most affordable protein on the market, and you still get a high quality product! This is the only protein powder I’ve found that thickens up a little bit even in water. The chocolate is delicious, straight up tastes like a melted creamie. The vanilla was way too sweet for me.

Nov 04, 2020
  • 10 Oatmeal Cookie
  • 9 Strawberry

This is the best protein dollar for dollar out there. The oatmeal cookie is one of the best tasting proteins I've personally ever had. The strawberry tastes just like a milk shake even when mixed with water.

Oct 29, 2020
Verified Buyer
  • 10 Oatmeal Cookie
  • 9 Vanilla

The oatmeal cookie is THE best flavor I've had from any brand of protein powder.

Oct 29, 2020
Verified Buyer
  • 2 Peanut Butter Cookie
  • 10 Oatmeal Cookie

The oatmeal cookie is amazing. Probably the best flavor I have ever had that wasn’t loaded up with sugar. I feel like I will never get tired of it. The peanut butter cookie is a different story. I powered through a few of them but ended up throwing it away.

Oct 27, 2020
Verified Buyer
  • 10 Oatmeal Cookie

Love the oatmeal cookie flavor for baking and for mixing up in my shakes in the morning. Has a great cinnamon oatmeal flavor at half the price of other expensive brands. Written by a employee

4 Sizes
907 Grams
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6 Flavors
Blueberry Cobbler
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Flavor Rating: {{sku.flavorRating | flavorRating}}
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Was:  ¥3,074
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Price: ¥2,305  (¥85 / Serving)
Flavor Rating: 8.5


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25g of Muscle-Building Whey Protein*

What's in Signature Signature 100% Whey Protein Powder

Serving Size: 1 Scoop (34g)
Servings Per Container: About27
% Daily Value *
Total Fat 2 g 3%
Saturated Fat 1 g 5%
Trans Fat 0 g       
Cholesterol 55 mg 18%
Sodium 135 mg 6%
Total Carbohydrate 2 g 1%
Dietary Fiber 0 g 0%
Total Sugars 1 g       
Includes 0g Added Sugar 0%
Protein 25 g 50%
Vitamin D 0 mcg 0%
Calcium 138 mg 10%
Iron 0 mg 0%
Potassium 131 mg 2%
* The % Daily Value (DV) tells you how much a nutrient in a servingof food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
Whey Protein Isolate, Whey Protein Concentrate, Whey Protein Hydrolysate, Natural & Artificial Flavors, Xanthan Gum, Sunflower Lecithin, Salt, Sucralose, Lactase, Prohydrolase® (Proteases from Bacillus and Pineapple), Acesulfame Potassium
Contains Milk.

Directions For Signature 100% Whey Protein Powder: Mix one scoop (34 grams) with 6 ounces of water, milk, fruit juice or your favorite beverage. Ideally take one serving immediately following your workout. To modify the consistency of your protein, increase or decrease the liquid level to your liking.

Warnings: Use this product as a food supplement only. Do not use for weight reduction. Store in a cool, dry place. Keep out of reach of children.

* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.