Head-to-head comparison updated for 2026. See which protein product comes out on top.
| Attribute | ||
|---|---|---|
| Brand | Dymatize | NOW Sports |
| Protein / serving | 25gBest | 25g |
| Calories / serving | 110Best | 110 |
| Fat / serving | 0.5gBest | 0.5g |
| Carbs / serving | 2g | 1gBest |
| Sugar / serving | 1g | 0gBest |
| Price / serving | $1.03 | $0.83Best |
| Price / gram protein | $0.0411 | $0.0333Best |
| Overall score | 79/100 | 88/100Best |
| Value score | 65/100 | 85/100Best |
| Purity score | 93/100 | 98/100Best |
| Protein source | Whey Isolate | Whey Isolate |
| Sweetener | sucralose | none |
| Certifications | Informed Sport | Informed Sport, GMP Certified, Non-GMO |
| Dietary tags | Gluten-Free | Gluten-Free, Soy-Free |
| Third-party tested | Yes | Yes |
| Buy on Amazon | Buy on Amazon |
Dymatize ISO100 is one of the highest-quality whey protein isolates on the market. What sets it apart is the hydrolysis process, which pre-breaks down the protein into smaller peptides for faster absorption. Each serving delivers 25g of protein with only 110 calories, 0.5g of fat, and 2g of carbs, making it one of the leanest protein options available.
NOW Sports Whey Protein Isolate combines two things that rarely go together: Informed Sport certification and budget-friendly pricing. At $64.99 for 78 servings, it delivers 25g of protein per scoop at just $0.033 per gram of protein — an exceptional value for a sport-certified product. NOW Foods has been a trusted supplement manufacturer since 1968, bringing over five decades of quality assurance to every batch.
NOW Sports Whey Protein Isolate takes the lead with an overall score of 88 vs 79. For value, NOW Sports Whey Protein Isolate wins with a 85/100 value score.
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Last updated: March 2026
