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  (547 Reviews)

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
547 Ratings
Verified Buyer Rating
473 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.
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!

Apr 15, 2019
  • 10 Vanilla

Normally I over look the vanilla protein powders. Usually they're super sweet and leave a bad after taste for me. However, this is the perfect blend of sweet and mellow...I serve this with two scoops and 10 ounces of cold milk and blend them. Perfect for after a training session or when you're low on your macros.

Apr 09, 2019
Verified Buyer
  • 10 Birthday Cake

This is my new favorite whey! It tastes like Birthday cake ice cream. I hope they start selling in 5 lb containers. And the sprinkles make it fun. Even my 4 year old loves it! We blend it with ice and unsweetened almond milk. Delicious: )

Apr 08, 2019
  • 8 Vanilla

Not big on vanilla, prefer chocolate, but not bad overall.

Apr 06, 2019
Verified Buyer

Doesnt mix well. Taste gross and gave my Fiance and I horrible horrible stomach pain. Will NOT buy again.

Apr 04, 2019
Verified Buyer
  • 9 Mocha Cappuccino

The only reason I give the Mocha Cappuccino a 9 and not a full 10, is only because of the sweetness - I find it a bit too sweet for my liking. Overall, it tastes really, really great (Better than the crap I had bought at my local store) and it mixes quite well. This is my first time trying this brand and I’m looking forward to trying out the other flavours as well.

Apr 03, 2019
  • 9 Vanilla

Excellent product. Great flavor, and has been beneficial to my recovery. Best whey supplement I’ve ever used!

Apr 03, 2019
Verified Buyer
  • 10 Strawberry
  • 10 Chocolate

We were looking for a new protein, a brand that we could trust, and that had a Strawberry flavor that we could handle. We found the Protein, and we were very surprised with the blend of high quality protein that is included. The taste is amazing for both strawberry and chocolate. Mixability is great using a nutribullet, and we couldn't be happier with the overall product. Then we get down to pricing, and the team at has this product priced extremely well. This will now be our protein of choice going forward. Being a big user and fan of Nutrabio, we were shocked at the quality, pricing and taste. Nice job to the team for bring these great products to us.

Mar 31, 2019
Verified Buyer
  • 10 Chocolate
  • 10 Mocha Cappuccino
  • 9 Vanilla

A great protein powder at a great price. Mixes very well except for the vanilla flavor, which seems to me to be sticker (for lack of a better word), than the other flavors I've used, which I think is why it doesn't mix as well... Still it dissolves well enough to not be a deal breaker for me. Other than that it's a pretty decent tasting vanilla compared to other brands I've tried. Chocolate and mocha cappuccino are delicious! I will definitely recommend them. Also, I really wish the oatmeal cookie flavor was a regular, it was amazing!

Mar 26, 2019
Verified Buyer
  • 6 Mocha Cappuccino

The mocha cappuccino is not my choice of flavor. Figured I'd give it a try, wish I would have stuck with chocolate or vanilla. Mixes great with hot or cold. Flavor just isn't right.

Mar 24, 2019
Verified Buyer
  • 9 Mocha Cappuccino

Best protein

Mar 23, 2019
Verified Buyer
  • 9 Vanilla
  • 10 Chocolate

Maybe some more flavors to pick in the future, but not a big deal at all. Ingredients profile looks no different than awarded brands, and for a lower price? C'mon... just go and read labels yourself... best bang for your buck (and it does the same job).

Mar 19, 2019
  • 9 Mocha Cappuccino

Great flavor, mixes well, good protein to calorie ratio. I normally just use water but I imagine this would taste amazing with milk as well. Would definitely purchase again!

2 Sizes
5 Lbs.
Choose a Size
{{group.violatorText}} {{}}
4 Flavors
Choose a Flavor
Flavor Rating: {{sku.flavorRating | flavorRating}}
Was:  {{}}
Price: $49.99  ($0.75 / Serving)
Flavor Rating: 8.8

What's in Signature Signature 100% Whey Protein

5 Lbs. Vanilla
Serving Size (33g)
Servings Per Container69
Amount Per Serving
Calories 130       
Calories from Fat 15       
% Daily Value *
Total Fat 2 g 3%
Saturated Fat 1 g 5%
Trans Fat 0 g       
Cholesterol 50 mg 17%
Sodium 160 mg 7%
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 0%
* 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), Maltodextrin, Salt, Sunflower Lecithin, Dipotassium Phosphate, Sucralose, Lactase, Prohydrolase, Acesulfame Potassium.
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.