Syntha-6 Protein Isolate

Syntha-6 Protein Isolate

Pure BSN Syntha-6 protein isolate for a consistent release of amino acids to power lean muscle building protein synthesis.*
BSN syntha-6 isolate is a 50/50 blend of whey protein isolate and milk protein isolate for a lean protein powder that's lower in unwanted lactose, fat, and carbs than cheaper forms of protein with the advantages of both fast and slow digesting proteins.*
8.9  out of 10  (928 Reviews)
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Product Overview

BSN Bottle

100% Isolate

  • Muscle Growth*
  • Protein Synthesis*
  • Recovery*
  • Ridiculously Delicious

Push your performance past previous barriers.

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100% Protein Isolate Matrix

SYNTHA-6® ISOLATE is an ultra-premium protein powder consisting of a 50/50 blend of Whey Protein Isolate and Milk Protein Isolate. BSN®’s unique ISOLAST protein matrix combines the advantages of both fast and slow digesting protein sources that have had much of the fat, sugar and other undesirable components ‘isolated’ out, making SYNTHA-6® ISOLATE the ideal post-workout recovery shake. SYNTHA-6® ISOLATE provides 25 grams of high-quality protein and the same delicious taste as SYNTHA-6®, thanks to BSN®'s exclusive flavor technology.


Daily adequate protein intake is important for muscle maintenance and development. Protein is needed to help repair muscle broken down during exercise and build new muscle. Using a quality protein powder will help supplement the daily amount of protein required by your body and help you to reap the benefits from every training session. Supplementing with protein before and/or after training can also have a noticeable impact on your recovery and performance.


SYNTHA-6® and SYNTHA-6® ISOLATE represent two different protein formulas that can both fit comfortably in any nutritional plan. SYNTHA-6® employs a multi-functional protein formula with a well-rounded nutritional profile that makes it an excellent choice first thing in the morning, as a high-protein snack option, or an anytime-recovery shake. And while SYNTHA-6® ISOLATE is a perfectly good choice for these applications as well, its strength lies in a unique protein formula comprised entirely of isolate protein sources with less calories, fat and carbohydrates than SYNTHA-6®, making it the ultimate choice for a post workout recovery or bedtime shake.

BSN Supplementation

At BSN®, we have designed our products to complement one another. When used together, they can help enhance the overall benefits of your supplementation and workout regimen.

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Ratings & Reviews

Syntha-6 Protein Isolate
Overall Rating
928 Ratings
Verified Buyer Rating
171 Ratings
Average Flavor Rating
5 Flavors
Top Rated Flavor
Milkshake de morango
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.
Jul 24, 2020
Verified Buyer
  • 9 Vanilla Ice Cream

iv e had purer protein powders such nutrbio ,but for me when it comes down to able to tolerate taste i have to half way be able or want to swallow it -syntha is like eating ice cream ,and the little it of difference of a purer protein isnt worth sacrificing taste ,if i have to oh god i have to drink this again but its the purest form and then want to gag really isnt worth it

Mar 08, 2020
Verified Buyer
  • 10 Vanilla Ice Cream

The best vanilla protein I've bought. Texture was kind of airy and soft, it wasn't just like drinking milk in terms of texture. The flavor is a light tasting vanilla that has just the right sweetness that it's not overpowering. No chemical taste. Worth the extra calories compared to other isolates.

Feb 12, 2019
Verified Buyer
  • 9 Peanut Butter Cookie
  • 8 Chocolate Milkshake
  • 9 Vanilla Ice Cream
  • 7 Strawberry Milkshake
  • 8 Chocolate Peanut Butter
Sep 17, 2018
  • 10 Chocolate Milkshake
  • 9 Vanilla Ice Cream

Been using these for years, and are the best tasting powders I've had so far. A treat I'm always looking forward to at the end of a workout. I often blend the vanilla ice cream flavor into smoothies with a banana and spinach for breakfast. Comes out very light and milkshake-like in a nutribullet or blender.

May 15, 2018
Verified Buyer
  • 8 Chocolate Milkshake

The formulation on this product has changed. The most recent container I received the powder is a different color than my previous container. The flavor is still identical, but it no longer mixes smoothly with water. That was my favorite thing about my initial batch 3 months ago was that it mixed into a silky smooth solution with bottled water. This batch tastes good but is never smooth no matter how much I shake it. Recovery benefits are excellent.

May 11, 2018
Verified Buyer
  • 10 Chocolate Milkshake
  • 10 Vanilla Ice Cream

Botg awesome flavors and gives you the recovery and adequate protein right before and after workouts. Inalso drink the Isolate at night time on my heavy days in order to keep feeding my body. No clumps at all. I highly recomend these products.

Mar 07, 2018
Verified Buyer
  • 8 Chocolate Milkshake
  • 10 Strawberry Milkshake
  • 10 Vanilla Ice Cream

Bedt tadting shakes i have ever bought. And in 10+ years of weight training i have tried several other brands.

Feb 03, 2018
  • 10 Chocolate Milkshake
Oct 02, 2017
  • 4 Chocolate Milkshake
  • 4 Vanilla Ice Cream

Very chalky, very thick mixture, definitely need to re-analyze the recommended mixture ratio. Tried both chocolate and vanilla flavors and both were not to my liking. Not good at all to drink.

Sep 24, 2017
  • 10 Chocolate Milkshake

PROS: (1) Sustained release protein blend makes it ideal as a multi-time slot supplement. (2) Higher carb ratio to provide energy, therefore freeing up protein for muscle repair and growth. (3) Awesome taste. (4) Good mix-ability. (5) Reasonably high in fibre. (6) 11 flavors. CONS: (1) BSN will not release amino acid facts ! When visiting their site, you'll be told: "Unfortunately, we cannot release SYNTHA-6 exact amino acid profile, owing to the fact that the blend is proprietary. By releasing this amino acid breakdown, we would be potentially opening the door to competitors copying the ratios" (2) expensive compared to similar products. (3) Lower protein content than many competitors. (4) High caloric value compared to similar. ***I can only recommend it to people who are not overly concerned with their amino intake.

Aug 10, 2017
Verified Buyer
  • 9 Strawberry Milkshake

Switched to this brand sometime ago. It is great tasting and very effective. Plus, compared to what I was using before it seemed to be easier on my stomach in terms of digestion -- well as easy as protein can be on one's stomach!

Aug 09, 2017
Verified Buyer
  • 5 Chocolate Peanut Butter
Jul 19, 2017

I had the Cookies & Cream powder, by way of my husband which to me tasted very artificial and just, not that great. This is also a protein I don't recommend for anyone with a lactose-sensitivity. At that point you wonder how much nutrition you are actually absorbing. So for me this is a no go.

Jun 03, 2017
  • 10 Chocolate Milkshake
  • 10 Chocolate Peanut Butter
  • 10 Peanut Butter Cookie
  • 10 Strawberry Milkshake
  • 10 Vanilla Ice Cream

Literally have tried every flavor of this and none have had any weird taste, always mixes without issue! By far the best bang for your buck if taste and macro content (lower fat/carbs) is important to you. Every time I try to switch protein powder I end up back with bsn. Quality products for sure!!

May 26, 2017
Verified Buyer
  • 8 Chocolate Milkshake
  • 10 Strawberry Milkshake

I was so happy when BSN came out with the whey isolate for Syntha-6. The strawberry flavor is by far my favorite. It mixes well with water and is not gritty at all. The flavor is great too. Chocolate is my second favorite but strawberry is definitely my go to protein. I have tried a lot of different brands but nothing compares to the flavor of Syntha-6.

2 Sizes
2.01 Lbs.
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3 Flavors
Chocolate Milkshake
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Price: $38.62  ($1.61 / Serving)
Flavor Rating: 8.9


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BSN syntha-6 isolate is a 50/50 blend of whey protein isolate and milk protein isolate for a lean protein powder that's lower in unwanted lactose, fat, and carbs than cheaper forms of protein with the advantages of both fast and slow digesting proteins.*

What's in BSN Syntha-6 Protein Isolate

2.01 Lbs. Chocolate Milkshake
Supplement Facts
Serving Size1Scoop(38g)
Servings Per ContainerAbout 24
Amount Per Serving
Calories 140
Calories From Fat 15
% Daily Value†
Total Fat 1.5g 2%
Saturated Fat 0.5g 3%
Trans Fat 0g
Cholesterol 15mg 5%
Sodium 190mg 8%
Total Carbohydrate 7g 2%
Dietary Fiber 2g 8%
Sugars 2g
Protein 25g 50%
Vitamin A 0%
Vitamin C 0%
Calcium 20%
Iron 4%
† Percent Daily Values are based on a 2,000 calorie diet. Your Daily Values may be higher or lower depending on your calorie needs.
Isolate Protein Matrix (Whey Protein Isolate, Milk Protein Isolate), Natural And Artificial Flavors, Cocoa Processed With Alkali, Fiber Blend (Inulin, Polydextrose), Sunflower Powder (Sunflower Oil, Corn Syrup Solids, Sodium Caseinate, Mono & Diglycerides, Dipotassium Phosphate, Tricalcium Phosphate, Soy Lecithin, Tocopherols), Lecithin, Cellulose Gum, Salt, Potassium Chloride, Sucralose, Acesulfame Potassium.
Allergen Information: Contains Milk And Soy (Lecithin) Ingredients.

Directions For Syntha-6 Protein Isolate: Take 1 scoop with 4-6 oz. (118-177mL) of cold water or any beverage of your choice. To increase your protein intake per serving and to achieve an amazing milkshake taste, use non-fat or low fat milk.

Warnings: Before consuming Syntha-6 Isolate seek advice from a physician if you are unaware of your current health condition, have any pre-existing medical condition, taking any medication, planning any medical procedure, contemplating pregnancy, pregnant or nursing. Reduce or discontinue use if any adverse reactions occur such as but not limited to gastrointestinal discomfort. Syntha-6 Isolate is only intended to be consumed by healthy adults 18 years of age and older. Keep Out Of Reach Of Children and Pets. Store in a dry place away from direct sunlight.

* 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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