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 (4,106 Reviews)
4 Sizes
2.91 Lbs.
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9 Flavors
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Price: $29.58 ($1.06 / Serving)
Flavor Rating: 9.3
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Product Overview


support muscle growth and recovery

Syntha-6 bottles on display





essential amino acids (EAAs) per serving Naturally Occurring EAAs

Male model doing squats with weights


SYNTHA-6® is an ultra-premium protein powder with 22g protein per serving and is BSN's best-tasting protein on the market. SYNTHA-6 not only includes essential amino acids and essential fatty acids, but is also an excellent source of fiber, which makes it a nutritious and multi-functional protein supplement. 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 BSN's exclusive flavor technology.

3 Syntha-6 bottles next to each other


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.



Robust macronutrient profile for athletes seeking substantial protein and carbs for recovery plus an amazing taste.*

2 Syntha-6 bottle next to each other


Leaner macronutrient profile for athletes seeking to maintain a leaner physique without sacrificing taste.

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Female fitness model holding weights


Bottle image Bottle image Bottle image Bottle image
Ultra-Premium, Lean Protein Matrix Ultra-Premium Protein Matrix 100% Isolate Protein Matrix Fat Burning Protein Matrix*
Leaner macronutrient profile with the same great taste of SYNTHA-6 for athletes looking for an edge in performance while maintaining a leaner physique. More robust macronutrient profile for athletes seeking substantial protein, carbs and fat for recovery.* For athletes seeking our purest formula with fast and slow digesting protein sources. 2-in-1 formula for athlete seeking recovery plus fat-burning support*.
• 24g Protein
• 6g Carbohydrates
• 3.5g Fat
• 150 Calories
• 22g Protein
• 15g Carbohydrates
• 6g Fat
• 200 Calories
• 25g Protein
• 7g Carbohydrates
• 1.5g Fat
• 140 Calories
• 20g Protein
• 6g Carbohydrates
• 2g Fat
• 120 Calories
• Amazing milkshake-like taste and texture
• 11g Naturally Occurring Essential Amino Acids
• Amazing milkshake-like taste and texture
• 10g Naturally Occurring Essential Amino Acids
• A good source of Fiber
• 50/50 blend of Whey Protein Isolate and Milk Protein Isolate • L-Carnitine
• Green Coffee Extract
• Lepticore
• Stimulant-Free
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Ratings & Reviews

Overall Rating
4,106 Ratings
Verified Buyer Rating
1,210 Ratings
Average Flavor Rating
12 Flavors
Top Rated Flavor
Cookie de manteiga de amendoim
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.
  • 9 Peanut Butter Cookie

great protein 9/10 on mixing 9/10 on taste it taste like peanut butter cookie great for oatmeal and pancakes 7/10 on nutrition it has a few more carbs i think then normal no huge deal

Verified Buyer
  • 10 Banana
  • 5 Strawberry Milkshake

Syntha 6 has the best tasting protein powders in the game. When I was almost out of my banana flavor, I tried mixing one scoop with a scoop of the strawberry. I wish I started doing it sooner because it actually tastes really good.

  • 10 Vanilla Ice Cream
  • 10 Strawberry Milkshake

Who said Syntha-6 not for cutting, even the fat and calories so high, I made a success cutting with this product. I'm 42 and lost 7% fat in 6 weeks with this product. Great product and awesome taste

  • 9 Cinnamon Bun - Exclusive!

I love the Cinnamon Bun, especially with almond milk. It tastes like cinnamon toast crunch to me, I LOVE IT SO MUCH!!! Need to restock soon!

  • 7 Chocolate Milkshake

Have tried other proteins from other companies and although the nutrition facts are amazing, the Chocolate Milkshake flavor is a tad off. Probably won't buy again, but to each their own!

Verified Buyer
  • 9 Chocolate Peanut Butter
  • 9 Strawberry Milkshake

This protein is good in terms of taste and macros , but I had mixibility problem as I use shaker and saw a lot of times it leaves crumbs at the bottom. Moving on from this 1

  • 9 Vanilla Ice Cream
  • 10 Strawberry Milkshake

Before buying this product I made a good reseach on protein shakes. I ended up debating between JYM, Golden Standard and this product. So I desided to try BSN to see if I like the taste.... BOOM! this stuff is GOOOD, it TASTE AMAZING. People are not BS here, this stuff taste good. They have a solid customer here for years to come.

  • 9 Vanilla Ice Cream

This protein is amazing. I keep coming back to Syntha 6 because it just works.

Verified Buyer
  • 10 Banana
  • 8 Strawberry Milkshake
  • 10 Peanut Butter Cookie
Verified Buyer
  • 9 Chocolate Milkshake
  • 10 Vanilla Ice Cream

The only protein I use! Typically one of the best bang for your buck!

  • 9 Chocolate Milkshake

Love both!! But the peanut butter is better. No after taste!

  • 9 Vanilla Ice Cream

The nutrition facts and all are objective, so form your own opinion there, but subjectively, the taste and blendability in my opinion are top tier. One of (if not THE) best protein powders I’ve ever purchased.

  • 10 Strawberry Milkshake
  • 6 Chocolate Peanut Butter
  • 9 Banana

Loved this as a protein shake! I found that the chocolate peanut butter flavour was a little chunkier and didn't mix as well but the banana was much smoother. It was also one of my favourite protein flavours I've had! Results were fantastic with the blend of proteins.

Verified Buyer
  • 10 Vanilla Ice Cream

Alright, so I was a bit skeptical about this product at first, I mean the package just look outdated and cheap, and what's up with this complex protein blend, why couldnt they just put 100% whey right? Oh man, I've never been that wrong in my entire life. Let me get this straight, so there's no confusion about it; THIS IS THE BEST SUPPLEMENT I HAVE EVER BOUGHT. Thats it! There is no "but", it's the best, peridod. I mean, I dont know if it's the actual blend combining fast digesting and slow digesting protein, or if I just needed that extra carbs and fat this product contains, but I have seen so much improvements in my workouts since I switched from ON gold standard to BSN syntha-6, it's insane! I would definitly recommend this product to every skinny ectomorph out there trying to gain mass. It won't make you pill some fat like a weight gainer, and it give you more for your money then a regular whey supplement. No complaints what-so-ever, this is the ****!

What's in BSN Syntha-6

2.91 Lbs. Banana
Serving Size 1 Rounded Scoop (47.2g)
Servings Per Container28
Amount Per Serving
Calories 200       
Calories From Fat 50       
% Daily Value †
Total Fat 6 g 9%
Saturated Fat 2 g 10%
Trans Fat 0 g       
Cholesterol 55 mg 18%
Sodium 180 mg 8%
Potassium 180 mg 5%
Total Carbohydrates 14 g 5%
Dietary Fiber 5 g 20%
Sugar 2 g       
Protein 22 g 44%
Vitamin A 0%
Vitamin C 0%
Calcium 15%
Iron 2%
Phosphorus 15%
Magnesium 6%
† Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
Protein Matrix comprised of (Whey Protein Concentrate, Whey Protein Isolate, Calcium Caseinate, Micellar Casein, Milk Protein Isolate, Egg Albumin, and Glutamine Peptides), Polydextrose, Sunflower Powder (Sunflower Oil, Corn Syrup Solids, Sodium Caseinate, Mono- And Di-Glycerides, Dipotassium Phosphate, Tricalcium Phosphate, Soy Lecithin, and Tocopherols), Natural & Artificial Flavors, MCT Powder (Medium Chain Triglycerides, Non-Fat Dry Milk, Disodium Phosphate, and Silicon Dioxide), Soy Lecithin, Cellulose Gum, Salt, FD&C Yellow #5, Sucralose, Acesulfame Potassium, Papain, and Bromelain.
ALLERGEN INFORMATION: Contains Milk, Egg, Wheat, and Soy (Lecithin) ingredients.

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. 

Warnings: Before consuming Syntha-6 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, pregnant, nursing or contemplating pregnancy. Reduce or discontinue use if any adverse reactions occur such as but not limited to gastrointestinal discomfort. Syntha-6 is only intended to be consumed by healthy adults 18 years of age and older. Keep out of reach of children and pets.

* 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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