Signature Casein Signature

Signature Casein

25g of Slow-Release Micellar Casein
Muscle Growth and Recovery While You Sleep, or Between Meals*
8.7  out of 10  (42 Reviews)
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Product Overview

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Casein is naturally rich in amino acids like leucine and glutamine. Because of its slow-release nature, casein provides a steady stream of these amino acids to support muscle growth and recovery over several hours.* All of this makes casein the perfect nighttime protein! Enjoy it as a shake or pudding an hour before bedtime or during long stretches between meals. Casein


Building muscle isn’t just about consuming enough protein: It has to be the right protein. Whey protein digests quickly and is ideal for stimulating muscle protein synthesis after your workout. Casein, on the other hand, digests slowly and inhibits muscle protein breakdown.*

When you ingest whey protein, the amount of amino acids in your bloodstream rapidly peaks, then declines. Ingestion of casein causes a slow and steady increase of amino acids in your blood, supporting muscle recovery over a longer period of time.*

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 Casein
Overall Rating
42 Ratings
Verified Buyer Rating
38 Ratings
Average Flavor Rating
2 Flavors
Top Rated Flavor
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 07, 2021
Verified Buyer
  • 10 Vanilla

I absolutely love the BBCOM casein protein! Slow digesting and tastes amazing

May 03, 2021
  • 7 Chocolate

I have had really good luck with all the other bodybuilding branded products, but the casein is extremely grainy even with 12-15 oz of water per scoop.

Dec 15, 2020
Verified Buyer
  • 3 Vanilla

Super super chalky, mixed with 8oz just milk and it was a job to get the whole thing down. Tried it with two scoops of PBFit powder and 10 oz of milk and it made it a bit more manageable. It does the whole “appetite suppressant” job really well however, had a shake for breakfast around 8 am and by noon I still wasn't hungry. Not a fan but I have five pounds of it so I gotta grin and bear it...

Oct 16, 2020
Verified Buyer
  • 6 Vanilla

This casein is grainy! I've mixed it in shakes with milk/water and baked with it. I can't seem to get the grainy texture out of it. I usually use Optimum Nutrition or Isopure and don't have issues, granted I know those are in the different price bracket. Now I'm stuck with 5 pounds of casein that I'll have to toss. Not a fan.

Oct 05, 2020
Verified Buyer
  • 5 Vanilla

Not really a fan of this stuff. The taste itself isn't TERRIBLE, but I've resorted to mixing it with either unsweetened cocoa powder or sugar, carb and calorie-free syrups to make it taste better. What I absolutely hate is the grit. It's very hard to drink this stuff and no matter what I do, it's still very gritty. I mix all my protein shakes with unsweetened almond milk and this is by far the worst-mixing product I've tried in years. I definitely won't buy this stuff again, and may not even finish my 4lb tub before trying a different brand.

Sep 07, 2020
Verified Buyer
  • 6 Vanilla

I'm honestly perplexed why people rate this flavor so highly. Compared to other brands, it's horrible with an odd after taste. It's pretty much a bare bones bulk saving product. If you want flavor go elsewhere. It mixes a bit easier and less thick than other products. Personally, I won't buy it again because I rather spend money on a product with better flavor.

Sep 05, 2020
Verified Buyer
  • 10 Vanilla

This is FAR better than I expected and needs just 16 ounces of water to make a frothy and delicious shake. Best is that it digests well. I am almost 100 (61) and quite happy that I can down a full shake (my second of the day) at midnight and sleep as if it never happened.

Sep 01, 2020
Verified Buyer
  • 8 Chocolate
  • 8 Vanilla

Both flavors taste really good. The only issue I have is that the powder, no matter how much you shake it, is still a bit gritty or grainy. Normally I mix my protein w/unsweetened vanilla almond milk but I've only mixed this with water. I'm hoping the grittiness is less when mixed with the almond milk. But I like the nutritional stats for my purposes so I will still consider ordering this again since it's not 100% terrible and was great right before bed time.

Aug 31, 2020
Verified Buyer
  • 10 Vanilla

When I opened the container, it smelled really good. When I stirred it to mix, I was surprised it mixed really great! It didn’t leave no clunks or undissolved chunks, mixed very well. So that’s a huge pointer. The taste was also really on point with vanilla and overall excellent! I love the taste. And the quality of it, I saw some gains. I use it for night time (obviously) and twice on on my off days. One thing I noticed though that I didn’t like... was that the pricing went up! I was going to order again til I saw it at $49.99... :( Great product

Jul 01, 2020
Verified Buyer
  • 7 Vanilla

Vanilla flavor is alright but it’s SUPER gritty. Drink two scoops before bed and it’s pretty hard to mix, have to get creative.

Mar 31, 2020
Verified Buyer
  • 10 Vanilla

Wonderful source of casein ! Great before bed :)

Mar 21, 2020
Verified Buyer
  • 10 Vanilla

Dissolve well in both water and milk even when using twice the dose/cup. The vanilla flavor taste pretty good.

Mar 05, 2020
Verified Buyer
  • 9 Vanilla

Great Product and was enjoying the results. Unfortunately my work life schedule change drastically and it's difficult to know when and if i'm falling asleep so half the jug is just sitting there going stale on top my fridge. If i can ever get my sleep schedule back in order i will defiantly reorder the vanilla again. 9.5/10. Taste is great just like the vanilla BB whey. I wouldn't say it mixes "poorly" but it defiantly can be a little grainier than the standard protein if you give it the old 5 second shake and pound. Spend a few extra seconds shaking it and it goes down like nothing at all

Feb 11, 2020
Verified Buyer
  • 6 Chocolate

I get some people's issue with the taste. To me, it almost has a mocha coffee flavor. Nothing too bad though. I will say it mixes really well and makes a thick frothy shake. I love the consistency. Much better than other casein proteins I have tried.

Feb 04, 2020
Verified Buyer
  • 10 Vanilla

To be honest, I do not like vanilla stuff at all but this casein product is WOW. Very delicious (I mix it with water). Mix very easy and fast, consistency is not to thick as I expected from casein what is a good thing. Will definitely buy again this specific casein in the future.

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Price: $39.99  ($0.73 / Serving)
Flavor Rating: 8.2


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Muscle Growth and Recovery While You Sleep, or Between Meals*

What's in Signature Signature Casein

Serving Size: 1 scoop (32g)
Servings Per Container: About57
Amount Per Serving
Calories 110       
Calories from Fat 5       
% Daily Value *
Total Fat .5 g 1%
Saturated Fat 0 g 0%
Trans Fat 0 g       
Cholesterol 20 mg 7%
Sodium 170 mg 7%
Total Carbohydrate 2 g 1%
Dietary Fiber 1 g 4%
Sugars 0 g       
Protein 25 g 50%
Vitamin A 0%
Vitamin C 0%
Calcium 50%
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.
Micellar Casein, Inulin, Natural and Artificial Flavor, Salt, Sunflower Lecithin, Acesulfame Potassium, Sucralose, Gum Blend (Cellulose Gum, Xanthan Gum, Carrageenan).
Contains Milk.

Directions For Signature Casein: Add one scoop to 8 ounces of cold water or milk and mix thoroughly. Use more or less liquid to modify the consistency to your liking. Enjoy at bedtime or between meals.

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.