22g of an Ultra-Premium Blended Protein Formula for Use Anytime, Day or Night
Formulated with 10 Grams of Essential Amino Acids Per Serving
9.2  out of 10  (3,926 Reviews)
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Product Overview


Go Ahead And

New Look. Same Syntha.

Syntha-6 Containers
22 g Protein
10 g Essential
Amino Acids
Naturally Occurring EAAs
Clock Icon Use Anytime
Day Or Night
BSN Athlete

NEW Cold Stone Creamery® Series

BSN Syntha-6 Cold Stone Creamery Flavors

Tastes like ice cream. Mixes like a milkshake. It's the best of both worlds. We outdid ourselves, once again.

Ultra-Premium Formula

SYNTHA-6® is an ultra-premium protein powder with 22g protein per serving and the best tasting BSN protein on the market. SYNTHA-6 is the go-to protein for any nutrition or exercise regimen because it is designed to suit a variety of active lifestyles and diet plans. And with SYNTHA-6, the high standard of quality protein comes with taste to match, thanks to the BSN exclusive flavor technology.

Ridiculously Delicious

BSN broke through the whey protein flavor barrier once and for all with the introduction of SYNTHA-6. Available in over 10 decadent flavors, SYNTHA-6 mixes like a delicious milkshake and is designed for any individual who wants to supplement daily protein intake to help reach their nutritional and physique goals.

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Ratings & Reviews

Overall Rating
3,926 Ratings
Verified Buyer Rating
1,273 Ratings
Average Flavor Rating
26 Flavors
Top Rated Flavor
Candy Cane - Limited Edition
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 14, 2019
Verified Buyer
  • 10 Chocolate Cake Batter
  • 10 Chocolate Milkshake
  • 9 Banana
  • 8 Strawberry Milkshake

Just fantastic meal replacement shakes. As long as you can fit it in your macros, buy it.

May 14, 2019
Verified Buyer
  • 10 Chocolate Peanut Butter
  • 9 Cinnamon Bun - Exclusive!

What can I say about Syntha-6 that hasn't already been said? Everyone has tried it or at least heard of it. A classic protein known for great taste.

May 04, 2019
Verified Buyer
  • 1 Birthday Cake Remix

I hoped this protein would be fun to drink and a little bit of cheat considering its ingredient label - High calorie, high carb, high cholesterol, high price NOT WORTH IT! The flavor is too bland, watery, almost no flavor and it has Birthday cake sprinkles inside which are unpleasant to drink. I literally want my wasted money back. Tons of other good quality protein manufacturers.

Apr 27, 2019
  • 10 Chocolate Cake Batter

Great tasting product so far the best I've tried.

Apr 25, 2019
Verified Buyer
  • 10 Salted Caramel
  • 10 Germanchokolatekake

Germanchokolatekake: one of the top 10 reasons to be re-incarnated. The other 9 reasons aren't important. Love the hint of coconut in it. Can't stop yumming in my head about it. Candy Cane: Who's the evil person at BSN who decided to make this limited edition? I want this year round! Did you know that Candy Cane Syntha-6 and 0% Skyr Icelandic Yogurt go together like copy & paste? Try it. Your taste buds will thank you. Salted Caramel: Why does this have a low rating? Who's taste buds are broken? OMG this is so delicious, I just licked the insides of my empty shaker cup so I could get another taste. When I drink this, I'm like a unicorn prancing through a field of platinum grass with Werther's Original Chewy Caramels shooting out its ***. Blend it with a banana... I dare you.

Apr 24, 2019
  • 9 Chocolate Milkshake

So I have tried a lot of different protein powders over the years. The only one I found that tasted better was the original Cytosport Monster Mass but they reformulated it and it now has more of that classic " tastes like a protein powder". To be fair, protein powders have come a long way from the chalky days and there are others that are okay. I look at it this way: everything else being equal, is this something I am going to look forward to drinking? At the end of the day what counts is consistently fueling your body and if you don't look forward to drinking your protein, just makes it a little harder to stay on track in the long run.

Apr 23, 2019
Verified Buyer
  • 10 Birthday Cake Remix
  • 10 Mint Mint Chocolate Chocolate Chip

The shipping is 10 times faster from rather than iHerb. And the prices are way better here too! Anyways great products here with the syntha 6 mmmmmmmmm so good omg! Will be buying more once my tubs are done! :) Mixes well and tastes good and have 6 different proteins for different digestion rates... I use it as a breakfast shake and take it before bed to keep my stomach happy! Feed the muscles while sleeping 😌

Apr 20, 2019
Verified Buyer
  • 1 Berry Berry Berry Good

I would not describe this flavor as Berry Berry Berry Good as it is overwhelmingly too sweet and doesn't taste anything like Berry.

Apr 18, 2019
Verified Buyer
  • 10 Peanut Butter Cookie

I tried this protein powder cause it had all the other different proteins in it. Peanut butter cookie tastes just like a real one. I love it will have to reorder this! Good taste and mixes well.

Apr 11, 2019

Too sweet, And it's bad ..

Apr 04, 2019
Verified Buyer
  • 9 Chocolate Milkshake

Tastes great! Only thing that is a bit concerning is the amount of cholesterol in a scoop. Some better options out there without having to sacrifice heart health.

Mar 27, 2019
  • 10 Cinnamon Bun - Exclusive!

The Cinnamon Bun is delicious with almond milk. It smells and tastes like a blend of cinnamon and caramel!

Mar 25, 2019
Verified Buyer
  • 10 Strawberry Milkshake

The best thing I’ve ever tasted! Cannot even believe there’s 22g in one scoop! Just seems like it’s a reg shake. I’ve never been this fan of a protein shake.

Mar 23, 2019
Verified Buyer
  • 10 Chocolate Milkshake
  • 10 Vanilla Ice Cream
  • 10 Peanut Butter Cookie

To the comment below saying I should do my research. First off, I’m well aware that this is a blend and a not pure whey powder. I’m also aware of the amino spiking done to raise the protein amount. Still doesn’t justify yielding around 47% protein. People are buying 5 pound containers thinking they’re getting 4-5lbs of protein when in actuality they’re getting a little over 2lbs. Again, as far as taste, this protein is great!! Very good flavor. Just pointing out there are MUCH HIGHER QUALITY products out there. But to each their own. It’s your money, spend it how you wish...

Mar 20, 2019
Verified Buyer
  • 9 Chocolate Milkshake
5 Sizes
2.91 Lbs.
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11 Flavors
Chocolate Peanut Butter
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Price: $34.02  ($1.22 / Serving)
Flavor Rating: 9.4

What's in BSN Syntha-6

2.91 Lbs. Chocolate Peanut Butter
Serving Size About 1 Scoop (47g)
Servings Per Container28
Amount Per Serving
Calories 200       
% Daily Value *
Total Fat 6 g 8%
Saturated Fat 2 g 10%
Cholesterol 55 mg 18%
Sodium 220 mg 10%
Total Carbohydrate 15 g 5%
Dietary Fiber 1 g 4%
Total Sugars 2 g       
Includes 1g Added Sugars 2%
Protein 22 g 44%
Calcium 150 mg 10%
Iron 1.1 mg 6%
Potassium 300 mg 6%
Phosphorus 150 mg 10%
Magnesium 24 mg 6%
Not a significant source of trans fat and vitamin D.
* The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2000 calories a day is used for general nutrition advice.
Protein Matrix comprised of (Whey Protein Concentrate, Whey Protein Isolate, Calcium Caseinate, Micellar Casein, Milk Protein Isolate, Egg Albumin, Glutamine Peptides), Sunflower Creamer (Sunflower Oil, Corn Syrup Solids, Sodium Caseinate, Mono- And Diglycerides, Dipotassium Phosphate, Tricalcium Phosphate, Soy Lecithin, Tocopherols), Polydextrose, Natural and Artificial Flavor, Cocoa (Processed with Alkali), Cookie Bites (Wheat Flour, Sugar, Canola Oil, Cocoa Powder (Processed with Alkali), Salt, Sodium Bicarbonate), Cellulose Gum, MCT Powder (Medium Chain Triglycerides, Nonfat Dry Milk, Disodium Phosphate, Silicon Dioxide), Lecithin, Salt, Acesulfame Potassium, Sucralose, Papain, Bromelain.
CONTAINS: Egg, Milk, Peanut, Soy, and Wheat.

Directions For Syntha-6:

Take 1 scoop with 4-5 fl. oz. of cold water or any beverage of choice. To increase your protein intake per serving and achieve an even more amazing milkshake experience, use non-fat or low-fat milk.

SUGGESTED USE: For healthy adults, consume enough protein to meet your daily protein requirement with a combination of high protein foods and protein supplements throughout the day as part of a balanced diet and exercise program. 

* 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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