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 (4,094 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

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
4,094 Ratings
Verified Buyer Rating
1,206 Ratings
Average Flavor Rating
12 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.
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 ****!

  • 9 Chocolate Milkshake
  • 8 Banana
  • 9 Strawberry Milkshake

I always seem to come back to syntha 6. It's good protein that tastes great and mixes extremely well. The high calories are a down side.

  • 10 Chocolate Milkshake
  • 9 Cookies & Cream
  • 8 Strawberry Milkshake

Mixability is the best, flavor is amazing. Doesn't get you bloated, has some sugar. I take this protein for building rather than cutting, and i really like them. Anyways, it is just protein, and if you are on a budget, due to the price, i would go for something else. If you can afford them, go for it, it won't make much of a difference but they are just perfect.

  • 9 Chocolate Milkshake

Best protein product I have ever used by far. Have had better gains (and better cuts) on this product than any I have ever used before. The quality of the protein is second to none.

Verified Buyer
  • 5 Cinnamon Bun - Exclusive!

I didn't like the Cinnamon Bun, would not buy again.

Verified Buyer
  • 9 Chocolate Milkshake
  • 10 Banana
  • 9 Vanilla Ice Cream
  • 10 Strawberry Milkshake

I have tried just about every protein on the market and Syntha 6 is by far my favorite! It's not the lowest calorie or the lowest fat but the macros are still great. One of the few protein shakes that mixes equally well with water OR milk. I love that there is added fiber and that the sources of proteins are blended. I've never had a protein that I like better. Muscle Pharm's Combat Powder comes close in SOME flavors but EVERY single flavor of Syntha 6 I've ever tried is 100% legit. Also this powder is a great flavor addition for plain oatmeal and making pancake batter. Gotta try it!

Verified Buyer
  • 10 Peanut Butter Cookie

My favorite flavor of protein by far!!! It may not have the greatest macros (but they still aren't bad) but it's worth finding a way to make it work in your diet.

Verified Buyer

I wouldn’t waste my time writing a review on a product. But!!!! After tasting the strawberry milkshake flavor it was only right that I did . This flavor/Product is probably the best tasting I ever had in my life!!! Definitely recommend this! Just get it you won’t regret it trust me!

  • 7 Chocolate Milkshake

The flavour is fine but I dont understand, how can people say its a great whey protein when out of a scoop of 47g, only 22g is protein??!!! Thats lesser than 50%! Is everyone on some heavy drugs here?

Verified Buyer
  • 9 Chocolate Peanut Butter
Verified Buyer
  • 10 Chocolate Milkshake

Best protein powder out there hands down, amazing taste.

Verified Buyer

Very good protein that can be taken anytime, not just after a workout, but what gives it a 10 is the taste. Best tasting protein powder I have ever tasted! Even my picky teenage son loves the flavor.

Verified Buyer
  • 10 Chocolate Peanut Butter
  • 8 Cookies & Cream
  • 10 Banana

Excellent protein, lower in sugars, fats, and calories than most, with a terrific taste. Great for those on stricter diets looking for a treat but not a cheat, while also great for your regular protein shakes. The Syntha-6 Edge is great too for those on an even stricter diet, while not quite as tasty.

  • 10 Strawberry Cream Swirl - Limited Edition

love strawberry flavour of this , can't seem to find this anywhere atm as syntha 6 edge has taken over. Mixes well, moderately thick (NOT WATERY) sweet tasting and doesn't seem to get boring like most tastes. High protein and low sugars for a whey, perfect for post workout to replenish your muscles after a BEAST WORKOUT!

Verified Buyer
  • 10 Chocolate Milkshake

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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