Blue Star Nutraceuticals

Iso-Smooth , 5 Lbs. Vanilla Dream

Protein Shake for Lean Muscle*
Supports Muscle Recovery From Exercise*
9.7  out of 10  (102 Reviews)

Product Overview


Not Cheap. Never will be.
Blue Star Nutraceuticals Post-Factor bottle

Support Recovery*

Tastes Great

Build Muscle*

Athlete working out in the gym
The past, present
and future of protein

Protein – a word synonymous with strength, power, and physique. We look for it on labels. We worry when it’s missing. These days, food manufacturers are adding it to everything they produce and slapping giant stickers on the front of their packages, “Now With Protein!” And yet somehow it seems, as its popularity is soaring, its quality is not. Quite the opposite in fact. Indeed, protein is everywhere – and so much of it is absolutely awful.

So what are we to do in a time when the performance athlete’s most coveted supplement has become nothing more than marketing ploy...

This is Iso-Smooth™. The past, present, and future of protein.

It's all about the isolate.

Protein is almost everywhere. But performance-level whey protein isolate for performance-level athletes is only in Iso-Smooth™.* Whey protein is created when the components of milk are mechanically separated.

This whey protein can be further processed to yield three forms: whey protein isolate, whey protein concentrate, and whey protein hydrolysate. The difference between these three forms is their percentage of pure protein.

After one serving of Iso-Smooth™ you’ll understand why not all protein is created equal.

Inside Blue Star Nutraceuticals Post-Factor bottle
Man drinking from blender
Pure protein, to the power of four.

Iso-Smooth™ forever changed the way we use protein. Its four-stage sustained-release blend of whey protein isolate, milk protein isolate, egg protein isolate, and micellar casein steadily delivers protein to your muscles as you need it, not all at once.* The result? A single-serving protein that provides up to eight full hours of muscle fuel, regardless of how or when you take it.*

Absorption and the PDCAAS.

Protein digestibility-corrected amino acid score (PDCAAS) is a method of evaluating protein quality that measures the amino acid requirements of humans and their digestion abilities.

Proteins are rated from 0 to 1.00, where 0 represents the lowest rating and 1.00 represents the highest rating.

All four proteins in Iso-Smooth™ have a PDCAAS value of 1.00.

Whey protein isolate.

Absorbed for up to 2 hours
PDCAAS Score: 1.00

Egg protein isolate.

Absorbed for up to 4 hour
PDCAAS Score: 1.00

Milk protein isolate.

Absorbed for up to 5 hours
PDCAAS Score: 1.00

Micellar casein.

Absorbed for up to 8 hours
PDCAAS Score: 1.00

Man stretching.
It has no business tasting this good.

“Remarkable.” “Incomparable.” “Luxurious.” These words, more often associated with German sedans than protein flavors, are just a few of the accolades awarded to Iso-Smooth™. Quality over quantity. Fundamentals over fads. These are the guiding principles of the Iso-Smooth™ flavor team. After 25 years of combined experience, it’s safe to say you know a thing or two about flavor-making. The result? Iso-Smooth™ flavors aren’t just good – they’re award-winning.

Regardless of your go-to recipe, Iso-Smooth™ is the only protein you need.* So whether you’re a yogurt, peanut butter, banana, or kale kinda guy, you won’t find a cleaner, better tasting protein out there. Thick, creamy, and ice cold, Iso-Smooth™ is the only way to reward yourself at the end of every workout.*

Chocolate candies
Betty By Design
Real products from real people.

"When looking for a high protein supplement to promote lean muscle growth and recovery, the most important characteristic is purity. Not all protein products are equal in purity. You can assess the purity of a protein supplement by looking for the word ‘Isolate’ in the ingredient list. Only Iso-Smooth™ has 3 different types of protein isolates indicating the highest purity of protein of all protein supplements with zero grams of sugar."*

Blue Star Nutraceuticals Chief Scientific Officer, David Gundermann.
David Gundermann
Chief Scientific Officer, Blue Star Nutraceuticals

Ph.D., Nutrition & Metabolism, University of Texas Medical Branch
M.Sc. Human Performance, University of Florida

Blue Star Nutraceuticals - Better By Design.

Ratings & Reviews

Overall Rating
102 Ratings
Verified Buyer Rating
37 Ratings
Average Flavor Rating
4 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.
Jan 14, 2019

Super clean protein powder packing a whopping 30 grams of protein per serving. Perfect for any type of diet/lifestyle as I try to do mostly a "maintenance" diet throughout the year and this always fits in with my daily macros. It's a powder that mixes up really easily, digests well, and tastes pretty darn good. You get what you pay for this with stuff!

Oct 26, 2018
  • 9 Vanilla Dream

TASTE/TEXTURE/MIXING this was a very nice Vanilla....not too sweet and with a slight butterscotch hint at the end. (at least in my opinion) i tried it in both 8 ounces of cold water and 8 oz.of Fairlife whole milk and as you might expect the differences were pronounced. while the shake mixed in water was pretty good the Fairlife shake was much better. so much creamier and rich, this was a pleasure to drink! mixing was a breeze in either. FORMULATION Iso-Smooth has a Cold Processed Time Released Protein Matrix consisting of 4 different types of proteins. (Whey Protein Isolate, Milk Protein Isolate, Egg Isolate and Micellar Casein) these provide a sustained release that delivers nutrients to the muscles as needed. very low in fat, cholesterol, carbs and sugar Iso-Smooth is a top quality product! OVERALL if youre looking for a great Isolate Protein you really cant do much better than Blue Stars Iso-Smooth.

Oct 07, 2018
  • 9 Vanilla Dream

This was my first time trying Iso-Smooth and the flavor I went with was Vanilla Dream. My experience with Blue Star Nutraceuticals products thus far has been great, the products that I've tried have been top notch. The Iso-Smooth profile is excellent with a higher protein content and cleaner profile then most protein powders. 30g of protein for a 36g scoop with only 135 calories, 1g fat, 1g carbs and 0g of sugar is really great. The protein blend of the 4 isolate proteins whey protein isolate, milk protein isolate, egg isolate and micellar casein make for a quality protein powder but will raise the cost higher than your typical whey protein/blends. I like to see the added enzyme blend to the profile and the low lactose for people who have problems. There are also some nice additions to the profile with the added flaxseed and CLA. The vanilla smell of the powder when you open the tub is really great. I like to mix a scoop with a little less then the recommended amount of water usually going with around 6-7oz. The powder mixes up instantly and I didn't find any clumps or problems in my blender bottle. My experience with this like all isolates is some foaming at the top after shaking but it settles down after a minute or two. The vanilla flavor is mellow and very good. It grows on you the more you drink it. It's not overly sweet and has a pleasant light vanilla taste. I've seen people talking about this being a great base flavor for making a shake with your own additions and I can really see that. Iso-Smooth is an excellent quality protein powder and it costs a little more for high quality. The profile is really great and this is another top notch product from Blue Star Nutraceuticals. I highly recommend Iso-Smooth and Blue Star Nutraceuticals products.

Dec 04, 2017

With 30g of protein, it is at the high end side of protein content. Most protein powders i see usually have 24-26g protein. 30 is much better, and the extra 6-4g protein per scoop really adds up and makes it easier to hit your goal for the day. Plus, at 1g carb, 1gfat, and 0g sugar, it is definitely on the cleaner side of most protein powders. As for the protein source, ISO-Smooth is made up of a mix of whey, milk, egg and micellar protein isolates. Not sure if anyone else is aware, order to evaluate protein quality, protein powders are given a PDCAAS (Protein digestibility-corrected amino acid score), which is a method of evaluating protein quality that measures the amino acid requirements of humans and their digestion abilities.. Proteins are rated from 0 to 1.00, where 0 represents the lowest rating and 1.00 represents the highest rating. All four proteins in Iso-Smooth have a PDCAAS value of 1.00. that we know that we are dealing with a high quality protein, you might be wondering how it tastes.... Well, it tastes just as the name is a dream....a Vanilla Dream. In water, or milk, it tastes equally as good. In milk, it is obviously a little thicker. Funny thing, is that i usually like my protein mixed in water...but i almost preferred it mixed in water when it came to the iso-smooth. No jokes, i would give this protein a perfect 10/10 rating on all accounts..profile, flavor, mixability. Although it might be a little expensive for some..but as the age old saying goes, "you get what you pay for"

Nov 16, 2017

This isn't your average ISO that is for sure, you get FOUR different Isolates in one blend, none of which I have seen in another product.. Most Isolates mix up to be a watered down disappointment without giving you much satisfaction. Iso smooth has some added fats and thickeners to give you a well rounded shake that makes you feel satisfied. The flavor has a hint of Carmel IMO to give it a backbone to the flavoring system to live up to the name CHOCOLATE SIN! only 1 gram of fat no sugar 30 grams per scoop of protein.......30!!!!! The only drawback and this has been said over and over in reviews.....the cost! The old adage .."You get what you pay for" very solid!!! 9/10

Jun 27, 2017
  • 8 Vanilla Dream

Gym God and Blue Star Nutraceuticals were incredibly generous and hooked me up with a 2lb tub of their ISO-SMOOTH in the 'Vanilla Dream' flavor. I have tried many of the Blue Star products and have liked them all so trying their ISO-SMOOTH was a no brainer. Mixability: I have tried it in the following mixutres: 1. Water – It mixes well and I found about 7 ounces to be the sweet spot for me 2. Milk – Here I went with about 10 ounces of milk (Fairlife) otherwise it was pretty thick 3. Milk and Egg Whites – ¾ cup of egg whites (Kroger) and 6 ounces of milk (Fairlife) Now the fluffiness of the powder seems to make it a little frothy, but I don’t mind it at all Taste: Taste of the Vanilla was very good, not the best but still very good. My favorite was mixing it with Fairlife Non-Fat Milk and I even mixed it with 2% Fairlife Chocolate Milk, both came out excellent. Cost “Not Cheap and Never Will Be”, says it all right on the label. It is a little more expensive than other ISO proteins but they have very good products so a lot of people will look pasted this.

Jun 23, 2017
  • 10 Vanilla Dream

Bravo to the Blue Star formulation team for this superb product. If you've seen my posts on the boards, I am always honest when it comes to my opinion on certain supps and will call BS out if deserving. I can say with 100% confidence that this is one of the best isolates I have tried to date, based on the profile/taste/everything else.

Jun 07, 2017

okay.....WHAT! This thing is unbelievable. It reminded me right away as having sweet chocolate chips, ones people would use for baking. Im a huge fan of chocolate and especially dark chocolate is a little weakspot for me. And when I took of sip of this, it got my tastebuds going crazy. Smooth, just like its name, and tastey. Most importantly, no weird after taste. The worst part is when it was done

May 20, 2017

Wow, I mean Wow! This is the best protein I have ever had. The chocolate is amazing in taste, almost unbelievable that it doesn't have a little bit of chalky taste, but it does not. I will continue to buy my products from you

Feb 22, 2017
Verified Buyer
  • 10 Vanilla Dream

By far the BEST protein I have used yet and I have tried many since 2011. Mixes well, tastes great, and just flat out WORKS. No, it's NOT cheap, but is well worth it. I was very skeptical at first. The protein percentage is highest of any other protein out there and this has been independently tested and verified. Also, with regards to the higher costs keep in mind that most protein makers have gone to the 4lb jug and this is a 5lb jug. So some of the extra $$$ are because you're getting more. I have tried both the Vanilla and Chocolate Sin and they both taste great. I prefer the Vanilla only because you can mix more with it such as fruit. But at any given time there always a jug of each in my kitchen. HIGHLY Recommend.

Jan 06, 2017

Reminds of me a light hot chocolate taste, very very light chocolate taste and not overpowering, could use a bit more chocolate taste. Great profile and very high quality proteins, also has added enzymes and more. Virtually lactose free makes this great Overall great protein..easy on the stomach, no GI issues or bloating, taste is good for an Isolate and GREAT macros. Downfalls are a slightly high price tag but well worth the quality! Would recommend this protein.

Oct 15, 2016
Verified Buyer

Best protein I've ever tried. Perfect flavor and mix of nutrients

Mar 19, 2016
Verified Buyer
  • 10 Vanilla Dream

I love this product it's the best I like vallia because it mixes great with water or coconut milk I add fruits to it i love the taste and my body is more firm more tone really works thanks !!!

Mar 11, 2016
Verified Buyer
  • 10 Vanilla Dream
Feb 27, 2016

Remember as a kid waking up before sunrise so you wouldn't miss watching saturday morning cartoons? i remember my mom would always prepare a good breakfast with a glass of chocolate milk. The very first time I tried Iso-Smooth my world was rocked, as I was thrown back to my childhood remembering the taste that every chocolate drink should aspire to be. No more being forced to add some sort of syrup or large amounts of ice to drown or mask chemical flavors. No more pulling out an industrial strength blender just to make sure no powder balls would rise to the top and explode in my eye or cause a powdery ball that'd make me choke. Finally a protein shake that tastes great, mixes well and easily, and doesn't skimp out on purity. If ever you could make a complaint about it, it'd only be that if it goes on sale you'd better hurry before supplies run out.

1 Size
5 Lbs.
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1 Flavor
Vanilla Dream
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Price: $101.10  ($4.04 / Serving)
Flavor Rating: 9.3

What's in Blue Star Nutraceuticals Iso-Smooth

5 Lbs. Vanilla Dream
serving size: 1 Scoop (approx. 36 g)
Servings Per Container: Approx 62
Amount Per Serving
Calories 135       
Calories from Fat 10       
% Daily Value
Total Fat 1 g 1%*
Saturated 0 g 0%
+ Trans 0 g
Cholesterol 2 mg 1%
Total Carbohydrate 1 g 1%*
Dietary Fiber .6 g 1%*
Sugars 0 g
Protein 30 g 60%*
Calcium 170 mg 16%
Iron 1 mg 4%
Phosphorus 100 mg 10%
Magnesium 28 mg 9%
Zinc .3 mg 2%
Copper 80 mcg 4%
Chloride 68 mg 2%
Sodium 70 mg 3%
Potassium 160 mg 7%
* Percent Daily Values are based on a 2,000 calorie diet
† Daily Value Not Established
Cold Processed Time Released Protein Matrix (Whey Protein Isolate, Milk Protein Isolate, Egg Isolate, Micellar Casein), Suspension Matrix (Xanthan Gum, Cellulose Gum, Carrageenan), Natural And Artificial Flavor, Sucralose, Acesulfame Potassium, Flaxseed, CLA, Enzyme Blend (Lactase, Bromelain, Amylase, Protease, Hemicellulase, Cellulase).
Allergen Warning: Contains ingredients from milk and egg. Made in a facility that also processes soy, peanut, tree nuts, fish, crustaceans and shellfish, and wheat products.

Directions For Iso-Smooth: As a dietary supplement, mix 1 scoop of ISO-SMOOTH with 8oz of water, milk, juice or your favorite beverage.

Warnings: KEEP OUT OF REACH OF CHILDREN. Not intended for use by persons under 18 years of age. Contains ingredients from milk and egg. Made in a facility that also processes soy, peanut, tree nuts, fish, crustaceans and shellfish, and wheat products. Consult a physician before taking this product if you are lactose intolerant or have any allergic reactions to dairy products. Use this product as a dietary supplement only. This product is not intended to replace food. Store in a cool dry place (60° F to 80° F). DO NOT USE IF SAFETY SEAL ON THIS PACKAGE HAS BEEN BROKEN.

* 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.
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