The core difference: one protein source vs. several
Dymatize ISO100 is a whey protein isolate. BSN SYNTHA-6 is a blend of whey protein, micellar casein, and milk protein isolate. That difference shapes everything else: ISO100 lists 25g of protein, 5.5g of BCAAs, less than 120 calories, 1g fat, 1g sugar, and 2g carbs per serving, while SYNTHA-6 does not list comparable macros in the supplied information.
If you want a leaner macro profile per serving, ISO100 gives you the numbers to plan around. If you want a multi-source protein blend with micellar casein, SYNTHA-6 fits that description. The supplied records do not include absorption-speed data or a protein amount per serving for SYNTHA-6, so treat any claim about which absorbs faster as unconfirmed here.
What the labels actually tell you
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Dymatize ISO100 Whey Protein Powder Isolate, Birthday Cake, 25g of Protein, 5 Pound, 5.5g BCAAs, Less Than 120 Cal., Gluten Free, 1g Fat, 1g Sugar, 2g Carb (75 Servings): 25g of protein, 5.5g of BCAAs, less than 120 calories, 1g fat, 1g sugar, and 2g carbs per serving; gluten free. Lets you compare calories and carbs per serving directly, which matters most for cutting or hitting a macro target.
Dymatize ISO100 Whey Protein Powder Isolate, Birthday Cake, 25g of Protein, 5 Pound, 5.5g BCAAs, Less Than 120 Cal., Gluten Free, 1g Fat, 1g Sugar, 2g Carb (75 Servings)
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BSN SYNTHA-6 Whey Protein Powder with Micellar Casein, Chocolate Milk Protein Isolate Powder, Chocolate Milkshake, 97 Servings (Package May Vary): Contains whey protein, micellar casein, and milk protein isolate for a multi-source protein profile. Explains the blend structure; the supplied record does not list protein, calorie, or carb amounts per serving, so you cannot compare macros directly.
BSN SYNTHA-6 Whey Protein Powder with Micellar Casein, Chocolate Milk Protein Isolate Powder, Chocolate Milkshake, 97 Servings (Package May Vary)
ISO100 vs. SYNTHA-6: side-by-side on what is confirmed
- Protein type: ISO100: whey protein isolate. SYNTHA-6: blend of whey protein, micellar casein, and milk protein isolate.
- Protein per serving: ISO100: 25g. SYNTHA-6: not stated in the supplied record.
- Calories, fat, sugar, carbs per serving: ISO100: less than 120 calories, 1g fat, 1g sugar, 2g carbs. SYNTHA-6: not stated in the supplied record.
- Servings per container: ISO100: 75 servings in a 5-pound container. SYNTHA-6: 97 servings in a 10.05-pound container (package may vary).
- Flavor in the supplied variant: ISO100: Birthday Cake. SYNTHA-6: Chocolate Milkshake.
- Gluten status: ISO100: labeled gluten free. SYNTHA-6: not confirmed by the supplied information.
Which one fits cutting, and which fits a blend preference
For cutting, the decision usually comes down to calories and carbs per serving. ISO100 gives you those numbers: less than 120 calories and 2g carbs per serving. SYNTHA-6 does not list comparable macros in the supplied record, so you cannot judge its fit for a cut from this information alone. That is a limitation of the evidence, not a claim that the product is unsuitable.
If you specifically want a protein blend with micellar casein, SYNTHA-6 is the match: it combines whey protein, micellar casein, and milk protein isolate. If you want a single-source whey isolate with a lean macro profile, ISO100 is the clearer choice. The supplied records do not confirm how fast either product is absorbed, so use the macro and protein-type differences as your guide rather than absorption claims.
Servings and value in the tub
- BSN SYNTHA-6 Whey Protein Powder with Micellar Casein, Chocolate Milk Protein Isolate Powder, Chocolate Milkshake, 97 Servings (Package May Vary): 97 servings per package in a 10.05-pound container (package may vary). A larger serving count means fewer repurchases if you use it daily, but you need the missing macro data to compare cost per gram of protein.
- Dymatize ISO100 Whey Protein Powder Isolate, Birthday Cake, 25g of Protein, 5 Pound, 5.5g BCAAs, Less Than 120 Cal., Gluten Free, 1g Fat, 1g Sugar, 2g Carb (75 Servings): 75 servings per 5-pound container. With 25g protein per serving, you can estimate total protein per tub; SYNTHA-6's protein per serving is not listed, so the same estimate is not possible from the supplied record.
Flavor and format: Birthday Cake vs. Chocolate Milkshake
The supplied variants are ISO100 Birthday Cake (5 pounds) and SYNTHA-6 Chocolate Milkshake (10.05 pounds). If flavor is a deciding factor, those are the two confirmed options here; the records do not list other flavors or sizes. SYNTHA-6's larger tub may suit someone who wants a blend and a higher serving count, while ISO100's smaller tub and labeled macros may suit someone tracking intake closely.
Decision rules before you buy
- Choose ISO100 if you need confirmed macros per serving: 25g protein, less than 120 calories, 1g fat, 1g sugar, 2g carbs, and gluten free are all stated for the Birthday Cake variant.
- Choose SYNTHA-6 if you want a blend with micellar casein: It combines whey protein, micellar casein, and milk protein isolate, and offers 97 servings per 10.05-pound container.
- Pause if you need SYNTHA-6 macros for a cut: Protein, calorie, fat, sugar, and carb amounts per serving are not in the supplied record, so you cannot compare it to ISO100 on those terms.
- Do not rely on absorption-speed claims: Neither record supplies absorption data; the isolate-vs-blend distinction is about protein source and listed macros here, not verified speed.