Syntha-6
BSN Syntha-6 is a whey blend protein powder with 22 g of protein per About 1 scoop (47 g). It scores 41/100 on the TBPP Quality Score. We found no third-party testing certification.
Nutrition per serving
Chocolate Milkshake flavor, from the label.
| Serving size | About 1 scoop (47 g) |
|---|---|
| Protein | 22 g |
| Calories | 190 |
| Carbohydrates | 14 g |
| Sugar | 3 g |
| Fat | 5 g |
| Sodium | 240 mg |
| Protein by weight | 47% |
| Leucine | Not verified |
| BCAAs | Not verified |
How it scored
41 of 100 points. How we score
| Criterion | Points | Why |
|---|---|---|
| Protein density | 6 / 30 | 47% of each scoop is protein |
| Third-party testing | 0 / 25 | No verified independent testing program |
| Label transparency | 20 / 20 | Fully disclosed formula, no amino spiking |
| Sugar | 6 / 10 | 3 g sugar per serving |
| Ingredient simplicity | 4 / 10 | Artificial flavors or sweeteners |
| Verified label data | 5 / 5 | 7 of 7 label values verified |
Formula and label
| Type | Whey Blend |
|---|---|
| Protein sources | Whey Protein Concentrate, Calcium Caseinate, Hydrolyzed Whey Protein Concentrate, Whey Protein Isolate, Micellar Casein, Milk Protein Isolate |
| Third-party testing | None found |
| Sweeteners | Acesulfame Potassium, Sucralose |
| Proprietary blend | No |
| Added free amino acids | No |
| Dietary | None listed |
| Allergens | Milk, Soy |
| Made by | BSN (Glanbia) · USA |
| Sold at | Amazon, GNC |
Price
$62.99–$75.99 for 5 lb. About $1.31 per serving, or $1.49 per 25 g of protein.
Sizes: 1.45 lb, 2.91 lb, 5 lb, 10.05 lb
Flavors (8)
- Chocolate Milkshake
- Vanilla Ice Cream
- Strawberry Milkshake
- Cookies and Cream
- Chocolate Cake Batter
- Fruity Cereal
- Blueberry Pancake
- Cinnamon Toaster Pastry
Sources
- https://www.amazon.com/dp/B002DYJ1EC
- https://m.media-amazon.com/images/I/91whj6eaaIL._AC_SL1500_.jpg
- https://m.media-amazon.com/images/I/81qQ008Jd8L._AC_SL1500_.jpg
- https://www.gnc.com/whey-protein/Syntha6.html
- https://www.gnc.com/dw/image/v2/BBLB_PRD/on/demandware.static/-/Sites-master-catalog-gnc/default/hi-res/387321_2.jpg?sw=1500&sh=1500&sm=fit
bsn.com has a broken TLS certificate and no working regional BSN site was found, so no brand-site source could be used. Nutrition is from the current Chocolate Milkshake 5 lb (48 servings) Nutrition Facts label image on the Amazon listing (sold by Amazon): 47 g (about 1 scoop), 190 kcal, 5 g fat (2 g saturated, 2.5 g monounsaturated), 85 mg cholesterol, 240 mg sodium, 14 g carbs, 6 g fiber, 3 g total sugars (1 g added), 22 g protein. Ingredients: protein matrix (whey protein concentrate, calcium caseinate, hydrolyzed whey protein concentrate, whey protein isolate, micellar casein, milk protein isolate), polydextrose, creamer (sunflower oil, corn syrup solids, sodium caseinate, mono- and diglycerides, dipotassium phosphate, tricalcium phosphate, soy lecithin, tocopherols), cocoa powder (processed with alkali), natural and artificial flavor, MCT powder, maltodextrin, salt, lecithin, cellulose gum, acesulfame potassium, sucralose. Contains: Milk and Soy. Label says 'Artificially Flavored'. The 10 g EAA front-label callout refers to naturally occurring EAAs; no BCAA or leucine figure is given. GNC's page still shows an older Vanilla Ice Cream label (200 kcal, 5 g fiber, egg albumen in the matrix, allergens Milk, Egg, Wheat, Soy); the newer Amazon label was used. Parent company and USA origin are from back-label images (BSN labels list Glanbia Performance Nutrition as manufacturer and say 'Manufactured in the USA'). Prices: $75.99 for 5 lb Chocolate Milkshake on Amazon; $62.99 for 3 lb (28 servings) on GNC, 2026-10-14. Flavors and sizes are from the Amazon variation list. No third-party certification confirmed.
Good to know
Last checked 2026-10-14. Labels change, so check the package before buying if you have allergies. If you are pregnant, nursing or buying for a child, ask your doctor before adding a supplement.