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  (535 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
535 Ratings
Verified Buyer Rating
464 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.
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!

Mar 19, 2019
Verified Buyer
  • 9 Birthday Cake

Yummy Flavor, excellent macro profile, transparent label and a decent price also. I would highly recommend this product.

Mar 16, 2019
Verified Buyer
  • 9 Vanilla

I have to say this protein is solid. I've tried different milk to see how the consistency changes, never chunks up on me either. For vanilla, i'm incredibly satisfied. If you want something simple that works, this supplement is it. Especially the amount of discounts they have on them every few weeks.

Mar 03, 2019
Verified Buyer
  • 9 Strawberry

Mixes really well and the flavor is Good!

Mar 02, 2019
Verified Buyer
  • 10 Chocolate
  • 10 Vanilla

Great Protein, great price, mixes very well and tastes good. BRING BACK OATMEAL COOKIE! No idea why they stopped making there best flavor..

Feb 12, 2019
Verified Buyer

Bring back oatmeal cookie!

Feb 05, 2019
Verified Buyer
  • 10 Mocha Cappuccino

Love the flavor.. try mixing with some ice, almond milk, pb fit powder, creatine, flaxseed, collagen protein my post workout guilty pleasure...

Jan 30, 2019

Please bring back the OATMEAL COOKIE!

Jan 30, 2019
  • 6 Mocha Cappuccino
  • 9 Vanilla

All the flavors are good, except Mocha Cappuccino. although ultimately it’s up to personal preference. I tried really hard to like it, but I couldn’t. It smells terrible, somewhat like dog food, and the taste is identical, dog food. The best flavor by far is the Oatmeal Cookie that they appeared to have gotten rid of unfortunately. Vanilla is always a safe bet.

Jan 29, 2019
Verified Buyer
  • 9 Mocha Cappuccino

Mix with a little bit of cold water or milk then add to coffee! Boom! pro tip: make sure to mix into cold liquid first! Don't mix directly into coffee or you'll have a bad time, it won't mix well

Jan 24, 2019
  • 1 Vanilla

Overall, it's protein, doesn't need much of an introduction. But the vanilla taste is just awful. I'm really not a picky eater but the very first portion of the vanilla I just had almost made me gag. Maybe I'll get used to it, but I'm not looking forward to this 5lb tub.

Jan 22, 2019
Verified Buyer
  • 9 Chocolate
  • 8 Mocha Cappuccino
  • 10 Vanilla

Great flavors and affordable. Please bring back the Oatmeal Cookie!

Jan 16, 2019
Verified Buyer
  • 10 Chocolate
  • 10 Mocha Cappuccino

I was actually REALLY surprised. I got chocolate for my protein pancakes and mocha cappuccino for my coffee, I wasnt sure what to expect taste wise, the chocolate cooks exceptionally well when added to my pancakes, for me, the taste is subtle, which is fine for me, it does taste very delicious, the mocha cappuccino took some trial and error for me, but once I found out how I liked it, it was absolutely delicious.(tip: if mixing with coffee, the colder it is, the better it tastes IMO), I am throughly impressed with these protein powders and will be ordering this from now on!!

2 Sizes
2 Lbs.
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5 Flavors
Birthday Cake
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Price: $26.99  ($1.00 / Serving)
Flavor Rating: 9.6

What's in Signature Signature 100% Whey Protein

2 Lbs. Birthday Cake
Serving Size (34g)
Servings Per Container27
Amount Per Serving
Calories 130       
% Daily Value *
Total Fat 2 g 3%
Saturated Fat 1 g 5%
Trans Fat 0 g       
Cholesterol 50 mg 17%
Sodium 180 mg 8%
Total Carbohydrate 3 g 1%
Dietary Fiber 0 g 0%
Sugars 2 g       
Includes 1g Added Sugar 2%
Protein 25 g 50%
Vitamin D 0 mcg 0%
Calcium 124 mg 10%
Iron 0 mg 0%
Potassium 179 mg 4%
* The % Daily Value (DV) tell s you how much a nutrient in a serving of 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, Birthday Cake Flavorettes (Sugar, Corn Syrup, Corn Cereal, Corn Starch, Hydrogenated Palm Oil, Natural and Artificial Flavor, Red #40, Yellow #6, Blue #1, Yellow #5), Natural and Artificial Flavor, Gum Blend (Cellulose Gum, Xanthan Gum, Carrageenan), Salt, Sunflower Lecithin, Dipotassium Phosphate, Sucralose, Lactase, ProHydrolase®, Acesulfame Potassium.
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.