O Syntha-6 It is a protein supplement from the BSN brand, and, contrary to the reviews we have been doing, it is not just a whey supplement, but rather a product with a mixture of several proteins.
We will use the nutritional values of the vanilla ice cream flavor to make this review, as these vary slightly between flavors.
In addition to the vanilla ice cream flavor, Syntha-6 is available in several flavors such as strawberry, banana, cookie/cream and chocolate shake.
As we have already mentioned, this product is not just a whey protein supplement, but rather a blend of several proteins, as we can see in the list of ingredients below.
Ingredients
The ingredients are organized by percentage of use, that is, the first ones are those that exist in the greatest quantity in the supplement.
Knowing this, we look at the list of ingredients and the proteins that have the greatest presence in order are:
- Whey concentrate, the most common form found in protein supplements.
- Whey isolate, a superior form of whey, high quality and fast absorption.
- Calcium caseinate, a form of casein.
- Micellar casein, an extremely slow-absorbing protein source extracted from milk, a form of casein superior to calcium caseinate.
- Isolated milk protein, this is a mixture composed of whey and casein, just like we find in milk but without the fats and sugars.
Finally, we have albumin, which is egg protein, which is of good quality and can be classified as intermediate absorption, and also glutamine peptides, which, as it is the last ingredient, the doses will be minimal.
We already know which proteins are used, but the list of ingredients is not even halfway through… so let’s summarize the rest.
Polydextrose is a sweetener, rich in fiber and low in calories.
Soy lecithin is high in fat.
Then we have ingredients like sunflower oil and corn syrup, which help with the flavor but detract from everything else.
Temos ainda uma pequena quantidade de MCT’s, que são gorduras que podem ter um papel interessante na perda de gordura.
And finally, flavorings and sweeteners(more).
Ingredients presented, let's move on to the nutritional value of BSN Syntha 6.

Nutritional value
We already know that the Syntha-6 It is a mixture of several proteins, and we already know the list of ingredients in more detail, that is, it is time to find out the nutritional values of this supplement.
The values shown are for the vanilla ice cream version, European version.
| 48g | 100g | |
| Proteins | 22g | 45.83g |
| Carbohydrates | 10g | 20.83g |
| Fats | 6g | 12.50g |
The first table refers to one dose of this supplement, that is, 48 grams, which is the number presented by the brand.
The second table shows the values for every 100 grams of product.
BSN Syntha-6 is a protein supplement with a protein content of 45%.
Is this bad?
No, this is not bad, this is terrible, this protein supplement is not even half protein.
Then looking at the table, Syntha-6 is made up of 20% of carbohydrates and 12% of fats.
We criticized the Iron Whey by MusclePharm for having 18% of carbohydrates, and now we have a new sugar champion…Syntha-6.
Furthermore, 12 grams of fat is too high.
Let's put these values face to face with two proteins, Whey Professional from Scitec and the Impact Whey from Myprotein.
| Syntha-6 | Impact Whey | Scitec Whey | |
| Proteins | 45.83g | 82g | 73.3g |
| Carbohydrates | 20.83g | 6g | 7g |
| Fats | 12.50g | 6.8g | 5.67g |
Is it fair to compare a supplement made up of a blend of several proteins to whey-only supplements?
Maybe not, but it's also not fair to sell a theoretically premium protein supplement with a paltry 45% protein content.
Price
We already know the ingredients, the (bad) nutritional value too, now all that's left is the price.
Values are always subject to change, but we used approximate values and within the average of what is found in online stores.
| 1300g | 2270g | |
| Doses | 27 | 48 |
| Cost per dose | €1.14 | €0.97 |
| Total cost | €31.00 | €47.00 |
This supplement is available in two main formats as we can see from the table, the smallest at 1.3kg and the largest at 2.2kg.
In the smaller version, each shake costs €1.14, while in the larger version the price drops to €0.97.
This means that we will pay between €1.14 and €0.97 per…22g of protein.
What to say about this value?
While it’s not 100% fair to compare whey-only proteins to blends, let’s do it to put the price of Syntha-6 into perspective.
| Syntha-6 2.2kg | Professional Whey 2.3kg | Impact Whey 2.5kg | |
| Doses | 48 | 78 | 100 |
| Cost per dose | €0.97 | €0.67 | €0.31 |
| Total cost | €47.00 | €53.00 | €30.89 |
Professional Whey has a protein content of 73%.
Impact Whey has a protein content of 82%.
Syntha-6 has a protein content of 45%.
Therefore, the weakest supplement is also the one with the fewest doses, the most expensive per dose, and the second most expensive in total cost.
Where to buy?
Find this supplement available here and you can still use the code GVIRTUAL to get a discount.
Also available at Body&Fit.

Conclusion
O Syntha-6 It is a supplement composed of several proteins, which can be interesting to use in meals other than post-workout.
However, a protein supplement that has a protein content of only 45% is terrible, no matter how interesting the protein sources are.
A very low amount of protein, very high carbohydrate values, too much fat and a high price considering what it offers us.
Who can we recommend this protein to?
To no one.




