Signature 100% Whey Protein Signature

Signature 100% Whey Protein

25g of Muscle-Building Whey Protein*
Blend of 3 Types of Whey for Ultimate Muscle Growth and Recovery*
8.8  out of 10  (559 Reviews)
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Product Overview Signature 100% Whey Protein

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

Overall Rating
559 Ratings
Verified Buyer Rating
479 Ratings
Average Flavor Rating
6 Flavors
Top Rated Flavor
Oatmeal Cookie
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.
May 15, 2019
Verified Buyer
  • 7 Birthday Cake

Doesn’t break down very well (plenty of chunks leftover) which makes it’s pretty watery to drink. Nothing inherently wrong with that, but compared to a product like Jym or even just Whey, I was expecting more. Also a little too sweet, but that's personal preference.

May 14, 2019
  • 10 Oatmeal Cookie

Oatmeal Cookie is the absolute BEST tasting protein powder I’ve ever tasted!!

May 14, 2019
  • 10 Oatmeal Cookie

It legitimately tastes like an oatmeal cookie 😭😭😭 delicious flavor combined with the good price and good macros = my new favorite.

May 14, 2019
Verified Buyer
  • 10 Vanilla

They sent me a sample of this with my order I received this morning. I can honestly say it's the best tasting vanilla powder I've ever had. Very smooth and easy mixing as well. Will definitely consider purchasing this next time I need whey.

May 10, 2019
  • 10 Chocolate

I received my Signature Whey Protein a few days ago. I usually take 1 scoop evenings with milk the nights before I workout in the mornings and 1 scoop after my workouts. This protein is very tasty and not too sweet. I like that it does not bloat me like some others. I like the price, too. I trust ingredients and have been a buyer of their products since 2004.

May 08, 2019
Verified Buyer
  • 10 Birthday Cake

Didn't know what to expect when ordering this, but was happily surprised with the taste. Makes everything taste like a cake in a good "whey." Very versatile and mixes well with most everything!

May 08, 2019
  • 10 Strawberry

Love this protein! It is a great protein to throw in your mix to switch up flavors because of the great flavor and comparable breakdown. The price is great too for the breakdown, and I normally do not skimp on protein products. The strawberry tastes just like strawberry milkshake with no aftertaste. The only "con" is it isn't as fine milled as some proteins, so it takes a bit to mix or it will be clumpy. Will buy again!

May 04, 2019
Verified Buyer
  • 10 Vanilla

I must say, I've had them all when it comes to protein powders over the past 13 years. This stuff is great. Taste great, pretty good price mixes pretty well. Nutrition specs look great protein value is great per scoop. This will be my new go to for years to come, great job!

May 01, 2019
Verified Buyer
  • 10 Birthday Cake

Have always been a fan of companies Vanilla or Cookies and Cream, but Signature Birthday Cake is now my favorite protein flavor. Really hoping it comes out in a 5lb tub.

Apr 29, 2019
  • 10 Birthday Cake

I checked out this Birthday Cake flavour and I got to say, love it. Now, usually, I'm down for Vanilla, maybe Chocolate if I'm feeling a bit "cray", but after trying Birthday Cake I think I'm a Birthday Cake guy. I mix it with some almond milk, and drink it down like everyday is my birthday. Which you might think would suck because you would get really old really quick, but with this protein, it would be worth it. Get some.

Apr 28, 2019
Verified Buyer
  • 5 Mocha Cappuccino
  • 9 Birthday Cake

I have used both birthday cake and mocha cappuccino. The birthday cake had a great flavor while the mocha cappuccino was not tasty at all... the one big issue I had with these proteins is that they did not mix well. In a shaker bottle, it would take about 45 seconds of shaking to eliminate clumps. Stirring with a spoon, it could take 5 minutes and you still would have significant amount of clumps. In comparison other, cheaper proteins I’ve used in the past could be stirred with a spoon in about 15 seconds.

Apr 27, 2019

I was surprised at how good this tasted! I don’t normally buy birthday cake, but I’m glad I did!

Apr 21, 2019
Verified Buyer
  • 9 Birthday Cake

Super good flavor and texture. Mixes really easy but it is a tad to sweet. But adding more water/ almond milk does the trick to make better.

Apr 19, 2019
Verified Buyer
  • 10 Birthday Cake

I bought this because of it's price point, flavor options, and low carb/calorie and high protein ratio. I honestly wasn't expecting much, but I was shocked. I added a scoop to my oatmeal and was pleasantly surprised. It transformed boring oats into essentially a sweet dessert for breakfast. I can't wait to try the other flavors.

Apr 18, 2019
Verified Buyer
  • 9 Mocha Cappuccino

Tried this a few months ago and been buying it since. Great flavor and good price!

2 Sizes
2 Lbs.
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6 Flavors
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Price: $26.99  ($1.00 / Serving)
Flavor Rating: 8.6

What's in Signature Signature 100% Whey Protein

2 Lbs. Strawberry
Serving Size (33g)
Servings Per Container: About 28
Amount Per Serving
Calories 130       
Calories from Fat 20       
% Daily Value *
Total Fat 2 g 3%
Saturated Fat 1 g 5%
Trans Fat 0 g       
Cholesterol 50 mg 17%
Sodium 150 mg 6%
Total Carbohydrate 2 g 1%
Dietary Fiber 0 g 0%
Sugars 2 g       
Protein 25 g 50%
Vitamin A 0%
Vitamin C 0%
Calcium 10%
Iron 2%
* Percent Daily values are based on a 2,000 calorie diet. Your Daily Value may be higher or lower depending on your calorie needs.
Whey Protein Isolate, Whey Protein Concentrate, Whey Protein Hydrolysate, Natural and Artificial Flavor, Gum Blend (Cellulose Gum, Xanthan Gum, Carrageenan), Sunflower Lecithin, Salt, Sucralose, Acesulfame Potassium, Lactase, Prohydrolase® (Proteases from Bacillus and Pineapple), Dipotassium Phosphate, FD&C Red No. 40.
Allergens: Contains Milk.

Directions For Signature 100% Whey Protein: 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.

* 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.