Best casein protein powders
Slow-digesting micellar casein releases amino acids over 3–7 hours — typical use case is pre-bed to extend overnight MPS.
New to casein? Read what casein actually is, why it digests slowly, and when it's worth taking before comparing the SKUs below.
Weighing casein against whey? See our whey vs casein comparison — identical density, different digestion speed.
| Product | Protein | Leucine | Density | Quality |
|---|---|---|---|---|
| Dymatize Elite Casein casein | 25g 130 kcal | 2.5g | 76.9% Platinum | Complete |
| Naked Nutrition Naked Casein casein | 26g 110 kcal | 2.47g | 94.5% Platinum | Complete |
| Optimum Nutrition Gold Standard 100% Casein casein | 24g 120 kcal | 2.3g | 80% Platinum | Complete |
| Ascent Native Fuel Micellar Casein casein | 25g 110 kcal | 2.2g | 90.9% Platinum | Complete |
| NOW Sports Micellar Casein casein | 19g 90 kcal | 1.81g | 84.4% Platinum | Complete |