Phosphatidylserine
| Specification | 20% | 50% | 80% | |
| Appearance | Bright yellowish powder | Light yellow powder | Light yellowish powder | |
| Phospholipids | PS | 20~22% | ≥50% | ≥80% |
| PC | 12~20% | ≤12% | ||
| PE | 8~16% | ≤10% | ||
| PI | 4~12% | ≤5% | ||
| Peroxide value | ≤5 | ≤10 | ≤5 | |
| Moisture | ≤1.5% | ≤1.5% | ≤1.5% | |
