Head-to-head comparison updated for 2026. See which protein product comes out on top.
| Attribute | ||
|---|---|---|
| Brand | BulkSupplements | Kaged |
| Protein / serving | 27gBest | 25g |
| Calories / serving | 110Best | 130 |
| Fat / serving | 0gBest | 1g |
| Carbs / serving | 1gBest | 3g |
| Sugar / serving | 0gBest | 1g |
| Price / serving | $0.82Best | $1.35 |
| Price / gram protein | $0.0303Best | $0.0541 |
| Overall score | 84/100Best | 72/100 |
| Value score | 90/100Best | 48/100 |
| Purity score | 93/100 | 98/100Best |
| Protein source | Whey Isolate | Whey Isolate |
| Sweetener | none | sucralose |
| Certifications | GMP Certified | Informed Sport |
| Dietary tags | Gluten-Free, Soy-Free | Gluten-Free |
| Third-party tested | Yes | Yes |
| Buy on Amazon | Buy on Amazon |
BulkSupplements Whey Protein Isolate 90% is the value champion of the whey isolate category. At just $26.96 for 33 servings, it delivers 27g of protein per 30g scoop — a remarkable 90% protein-by-weight ratio that rivals the most expensive isolates on the market. The single-ingredient formula contains nothing but whey protein isolate: no sweeteners, flavors, colors, or fillers.
Kaged Whey Protein Isolate stands out for its commitment to quality processing. The micropure filtration and cold-processing methods help preserve the integrity of the whey protein, retaining more of the beneficial immunoglobulins and lactoferrin that can be damaged by high-heat processing. Each serving delivers 25g of protein with 5.5g of BCAAs.
BulkSupplements Whey Protein Isolate 90% edges ahead with an overall score of 84 vs 72. For value, BulkSupplements Whey Protein Isolate 90% wins with a 90/100 value score.
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Last updated: March 2026
