Iso-Smooth™ GRASS FED WHEY ISOLATE PROTEIN SHAKE

Iso-Smooth™ Iso-Smooth™ Iso-Smooth™ Iso-Smooth™ Iso-Smooth™
Iso-Smooth™ Iso-Smooth™ Iso-Smooth™ Iso-Smooth™ Iso-Smooth™
Iso-Smooth™ Iso-Smooth™ Iso-Smooth™ Iso-Smooth™ Iso-Smooth™
Iso-Smooth™ Iso-Smooth™ Iso-Smooth™ Iso-Smooth™ Iso-Smooth™

Iso-Smooth™ GRASS FED WHEY ISOLATE PROTEIN SHAKE

With 30 grams of protein per serving, it’s hard to believe a shake virtually free of sugar, fat, and lactose can mix this easy and taste this great.

  • 3RD PARTY LAB TESTED
  • PhD FORMULATED
$69.99 $79.99 Save 12%
28 Day Supply • 2 LB.
In Stock - Order Today!
FREE SHIPPING OVER $75 60 DAY GUARANTEE

Discover Iso-Smooth™

  • 0GADDED SUGAR
  • 100% GRASS-FED WHEY ISOLATE
  • 30gPROTEIN PER SERVING

Loved by our Athletes

Iso-Smooth is hands-down my favorite protein on the market. The taste is unreal, and it’s one of the few that doesn’t leave me feeling bloated, gassy, or sluggish. With 30g of grass-fed whey and barely any sugar, it’s top shelf.

Steve Nesrallah

Iso-Smooth tastes so good it almost feels like I shouldn’t be allowed to have them while dieting. It mixes effortlessly with just water, and I also love adding it to my oats when I want something more filling. The texture stays smooth and the flavors are actually enjoyable, which makes it easy to stay consistent. The macros make it super easy to hit my protein goals.

Christina Hardway

I love incorporating Iso-Smooth in my daily stack. It’s a great way for me to get a quick 30g of protein when I’m on the go during busy days. All of the flavours taste great and mix well.

Maya Nowakowski

Iso-Smooth honestly makes hitting protein goals way easier. It tastes legit, actually craveable, and mixes clean. That’s huge when I’m on the go or in between clients.

Jonni Shreve

Most protein powders are either good for you or great-tasting. Iso-Smooth™ is both.

  • Fast Absorbing Rapid digestion and absorption help maximize muscle protein synthesis —when it matters most.*
  • Virtually Lactose-Free, Low Fat, Low Carb Only the good stuff—no bloat, no stomach issues, no fillers. Made for everyday use and easy digestion.*
  • Grass-Fed Whey Isolate Iso-Smooth is made only with whey isolate protein sourced from grass-fed, grass-finished, and hormone-free American dairy cattle.

What’s Inside

Every Blue Star Nutraceuticals® formula starts with one question: What does it take to get real results? That’s why every ingredient inside—every dose, every compound—is carefully selected, precisely measured, and backed by science. Developed by PhDs. Trusted by athletes. Built to work.

AT A GLANCE

Combat
Muscle Loss*
Slow Recovery*
Protein Deficiency*
Digestive Discomfort*
Poor Taste*
Low Protein Purity*

What Iso-Smooth™ Does For You

Iso-Smooth™ isn’t just another protein powder—it’s a high-performance fuel source designed to optimize recovery, growth, and training results. With ultra-clean ingredients, fast absorption, and exceptional taste, it’s built to support your goals—every scoop, every day.*
  • Build & Repair Muscle Supports muscle growth and post-training recovery with fast-digesting, high-leucine whey protein isolate.*
  • Stay Lean Low in carbs, fat, and calories—Iso-Smooth™ fuels lean muscle gains without adding bulk where you don’t want it.*
  • Digest Clean Virtually lactose-free and highly filtered to remove impurities that cause bloating or discomfort.
  • Enjoy It Every Time Engineered for unbeatable taste and texture—so you actually look forward to drinking your protein.*

Science of Iso-Smooth™

Iso-Smooth™ is a single-source whey protein isolate, selected for purity, absorption, and amino acid profile. Every scoop is built around one purpose: delivering ultra-clean, high-performance protein. It’s formulated with precision, tested for purity, and refined for taste. That’s why we publish a full scientific whitepaper—so you can see exactly what’s inside, and why it works. If we know it, you should too.
  • 3rd Party Lab Tested
  • PhD Formulated
  • Science Backed Ingredients
The Science Behind Iso-Smooth™ VIEW THE WHITEPAPER
59% Higher EAA Percentage
115% Greater Biological Value
THE DETAILS

When You’re This Clean They Call You Iso-Smooth™

Most protein powders cut corners on purity, flavor, or digestion. Not here. Iso-Smooth™ delivers 100% whey isolate with virtually no lactose and no fillers. Just clean, powerful protein—designed to fuel serious progress. It’s not just smooth. It’s Iso-Smooth™.
    • High in Protein
    • Low in Sugar
    • 3rd Party Lab Tested
    • Hormone-Free Whey Isolate
    • Tastes Delicious

How Iso-Smooth Works

Protein is essential—but quality matters. Iso-Smooth™ is designed for rapid absorption, high amino acid delivery, and easy digestion—supporting faster recovery, better growth, and more consistent results.*
  • 01 Rapid Digestion Absorbs quickly to deliver amino acids to muscle when your body needs them most—especially post-workout.*
  • 02 Clean Recovery Helps rebuild torn muscle fibers and reduce breakdown after training.*
  • 03 Daily Muscle Support Delivers essential amino acids and BCAAs to help preserve lean muscle mass between workouts.*
  • 04 No Compromise Virtually lactose-free, low-carb, and delicious—so you don’t have to choose between taste, comfort, and performance.*

Iso-Smooth™ FAQs

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BUILD YOUR STACK

Goes great with Iso-Smooth™

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*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.
VERIFIED

User Reviews

4.90
1298

Customer Reviews

Based on 51 reviews
96%
(49)
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100.0
90.9
J
Joy L. (Dollard-des-Ormeaux, CA)
Protein shake

Best protein shake I ever had 💪🏼

T
Tara (Surrey, CA)
My new favourite protein powder!!

ISO-smooth makes getting the quick protein in. It tastes so good and mixes well with milk/alternative and even just water. I look forward to having my protein shake everyday. Looking forward to trying other flavours.

C
ChrisM (Walkerton, CA)
Great product

Switched to ISO-Smooth chocolate peanut butter. The taste is great. It mixes well with water. Very smooth texture not chunky like my last protein. Should have switched this sooner.

S
Sue a.M. (London, CA)
ISO Smooth and shake One

This is the best protein I’ve tried.
Mixes well with water, milk or milk alternative.
Not chalky or gritty. Great flavour
Highly recommend!! N

T
Trevor S. (Owen Sound, CA)
The best in my humble opinion.

I have tried dozens of different protein supplements over the years and this is by far my favourite. The protein to calorie content is great (especially when you’re trying to cut down). It mixed perfectly in a shaker (no clumps and doesn’t stick to the sides). And the flavours are top notch ( Vanilla Bean and Chocolate are my faves). I’ll be a loyal customer for the foreseeable future.

E
Elisca L. (Kelowna, CA)
Not Chalky

Great flavor, mix with anything and doesn't have that chalky taste or feel to it. Smooth, just like it says. Have had this every morning for about 40 days and keeps you full for hours.

P
Paul O. (Orillia, CA)
My ISO Smooth benefits

In the past it has helped me maintain by weight and strength and aided in my recovery from working out. Right now, I am recovering from health issues and it has provided me with extra protein and given me energy. Thank you.

S
Shelden j. (Vaughan, CA)
Nothing negative to say really 🥰

Great product I recommend to everyone I know

R
Robert k. (Ross, CA)
Iso smooth

Best tasting powder out there, I find I have more energy and faster recovery.

A
Anonymous (Montreal, CA)

It’s great, specially the chocolat peanut butter !

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