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 (4,111 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
Buy 1 Get 1 50% Off
For a limited time, buy 1 Syntha-6, 2.91 Lbs. & get 1 50% Off!

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
4,111 Ratings
Verified Buyer Rating
1,215 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.
Verified Buyer
  • 10 Chocolate Milkshake
  • 10 Strawberry Milkshake

Seriously love this product. I am doing reviews now because, I’ve realized that, that is what I look for when purchasing an item; so I should probably be leaving them. Strawberry milkshake is my absolute favorite and it taste exactly like strawberry milkshake as if you’re eating Häagen-Dazs, if you mix it with a Lactaid milk soy milk, almond milk that’s what I use, the chocolate is really good as well really good. The thing about this protein, like most, is that it tends to leave me bloated, and gas (*******). but the flavor is not chalky. delicious enjoy

Verified Buyer
  • 10 Chocolate Cake Batter

Not buying this product ever again! folks, this product with its 22 grams of protein and all has a very low ratio of protein per scoop. Not pleased with this purchase... I guess that's what you get when you try to buy the cheaper brand.. flavor wise is great however, as soon as you open the tub the first thing you'll notice is the shine from the sugar and when you taste it you can tell there isn't enough protein in it. It basically taste like Nesquick. Typically you can mix your protein powder with approx. 8-10 oz of water, milk, etc. but for the Syntha-6 you mix 5 oz MAX. of your fave liquid and you get the most of the flavor. any more than that and you're losing more than the flavor... will not recommend it to anybody.

Verified Buyer
  • 10 Strawberry Milkshake

This is the best tasting protein I've ever had!

Verified Buyer
  • 9 Chocolate Milkshake

Tasty, but that's a lot more calories than I'm used to with other powders I've used. I'm trying to maintain body with a 5 day a week 5-6km run, plus 3 days lifting so the extra calories mean nothing to me. I've only used it for 4 weeks, but I really like this product.

  • 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!

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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