Head-to-head comparison updated for 2026. See which protein product comes out on top.
| Attribute | ||
|---|---|---|
| Brand | BulkSupplements | Orgain |
| Protein / serving | 27gBest | 21g |
| Calories / serving | 110Best | 150 |
| Fat / serving | 0gBest | 4g |
| Carbs / serving | 1gBest | 15g |
| Sugar / serving | 0gBest | 0g |
| Price / serving | $0.82Best | $1.11 |
| Price / gram protein | $0.0303Best | $0.0529 |
| Overall score | 84/100Best | 73/100 |
| Value score | 90/100Best | 68/100 |
| Purity score | 93/100Best | 90/100 |
| Protein source | Whey Isolate | Plant Blend |
| Sweetener | none | erythritol |
| Certifications | GMP Certified | USDA Organic, Non-GMO, GMP Certified |
| Dietary tags | Gluten-Free, Soy-Free | Vegan, Gluten-Free, Dairy-Free, Soy-Free |
| Third-party tested | Yes | No |
| 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.
Orgain Organic Plant-Based Protein was created by Dr. Andrew Abraham, a physician and cancer survivor who wanted clean, accessible nutrition for everyone. The USDA Organic formula combines pea protein, brown rice protein, and chia seed to deliver 21g of complete plant protein per serving. At $29.99 for 27 servings, it is one of the most affordable organic plant proteins on the market.
BulkSupplements Whey Protein Isolate 90% edges ahead with an overall score of 84 vs 73. For value, BulkSupplements Whey Protein Isolate 90% wins with a 90/100 value score.
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Last updated: March 2026
