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 (4,119 Reviews)
4 Sizes
5 Lbs.
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Price: $44.99 ($0.94 / Serving)
Flavor Rating: 9.3
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For a limited time, buy 1 Syntha-6, 5 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
4,119 Ratings
Verified Buyer Rating
1,222 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.

This product is 47% protein. Just divide the grams of protein to the servings size and you will see just how potent your protein powder is. You need to find one that is at least 80% or better. Spend your money wisely on protein that is “packed” with what you are buying. Don’t just buy something because it mixes well or tastes great. My two cents.

Verified Buyer
  • 10 Strawberry Milkshake

Ive written a review for this product before mostly on its functionality and overall quality as a product, HOWEVER, after trying multiple flavors the strawberry milkshake was so delicious I needed to give it a review of its own. I could drink this shake all **** day I'm not kidding its that good. The product itself is great for getting in protein throughout the day but this flavor man..BSN...youve done something special here.

Verified Buyer
  • 10 Vanilla Ice Cream
  • 10 Cinnamon Bun - Exclusive!

About the only real difference in different brands of protein powders is the flavor. With that being said the vanilla and cinnamon bun flavors are amazing. It was the first time I have finished a protein shake and thought to my self that I wish I made more. My wife also loves it and she absolutely hates protein shakes. So that should tell you something.

Verified Buyer
  • 9 Chocolate Milkshake
  • 10 Vanilla Ice Cream

Syntha 6 is the best. Absolutely delicious flavors, no problems mixing. I would recommend this protein to literally anyone who would listen. I've tried quite a few others and I'm not switching from this one. Can't wait to try the other flavors. BSN has a customer for life here!

Verified Buyer
  • 10 Vanilla Ice Cream

Amazing taste!! Mixes very well! Was a little skeptical of switching proteins but going to BSN was one of the best decisions I’ve made. Very impressed with this, would highly recommend to anyone

Verified Buyer

This is, hands-down, the most delicious protein you'll take. It's honestly a real treat. Other proteins have been hit with the class-action lawsuit for protein spiking. Not BSN and not Syntha-6. Yes, there are lower calorie protein powders. But those extra few calories (it's still only 200) is well worth the added ease of mixing and the fact that it's a dessert-level treat to consume. I do sometimes take isolates, but they don't mix as well, and surely don't even come close to taste as well. This is the perfect mix of great price, superior taste, and premium effect. I was very bummed when they discontinued the cake batter flavor, but this one, while different, is still ridiculously delicious. Things this healthy shouldn't taste this good? BSN disagrees :-)

Verified Buyer
  • 9 Chocolate Milkshake
  • 7 Vanilla Ice Cream
  • 9 Cinnamon Bun - Exclusive!
  • 10 Peanut Butter Cookie

love the flavor. mixes very well and is reasonably priced.

Verified Buyer
  • 10 Strawberry Milkshake

In comparison to the generic brands like Optimum Nutrition, the flavor of this product is UNPRECEDENTED! I'm not a fan of strawberry milkshakes, but the reviews of this flavor were good so I decided to give it a try, and I do not regret it one bit. The flavor is just amazing, even mixed with water. Though the protein had a hard time mixing in, and that the shake would come out a bit chunky, I found it completely okay considering that the little chunks of whey tasted like bits of strawberry cake. I recommend to not only try out Syntha-6's whey, but to give the strawberry milkshake flavor a try!

Verified Buyer
  • 9 Cinnamon Bun - Exclusive!
  • 10 Strawberry Milkshake

Fantastic product. Both the flavours I bought taste amazing. I haven't had any clumps at all and I barely have to stir it or shake it. My new favourite protein supplement.

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
  • 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

What's in BSN Syntha-6

5 Lbs. Banana
Supplement Facts
Serving Size:1Rounded Scoop(47.2g)
Servings Per Container:About 48
Amount Per Serving
Calories 200
Calories From Fat 50
% Daily Value†
Total Fat 6g 9%
Saturated Fat 2g 10%
Trans Fat 0g
Cholesterol 55mg 18%
Sodium 180mg 8%
Potassium 180mg 5%
Total Carbohydrates 14g 5%
Dietary Fiber 5g 20%
Sugar 2g
Protein 22g 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 [Milk], 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- & Diglycerides, 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), Lecithin, Cellulose Gum, FD&C Yellow #5, Salt, Sucralose, Acesulfame Potassium, Papain, And Bromelain.
Allergen Information:
Contains Milk, Egg, Wheat And Soy (Lecithin) Ingredients.
Allergen Warning:
Manufactured On Equipment Which Processes Products Containing Milk, Egg, Soybeans, Wheat, Shellfish, Fish Oil, Tree Nuts, And Peanut Flavor.

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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