250,000 SPU
Per Capsule
Delayed-release capsule plus coated particles.
Enter your lot number to view the Certificate of Analysis for your lot.
Every production lot is independently tested and verified.
Each bottle has a production lot number. Enter it to see that lot’s laboratory results through Veriphase™, our lot-specific verification system.
Confirms the material is serrapeptase and measures its functional enzyme activity in Serrapeptase Units (SPU).
Evaluates the sample against specified microbial criteria.
View the original COA from the independent, ISO 17025-accredited laboratory.
See the actual test results for your exact production lot—not a generic batch.
This is the most recently released production lot.
14 Tests Per Lot
Every production lot is independently tested against defined identity, potency, contaminant, and disintegration specifications.
- Identity — confirms serrapeptase (USP proteolytic assay)
- Potency / Enzyme Activity — ≥250,000 SPU/capsule (USP proteolytic assay)
- Arsenic ≤10 mcg/mdd*
- Cadmium ≤4.1 mcg/mdd*
- Mercury ≤3 mcg/mdd*
- Lead ≤2.75 mcg/mdd*
- ICP-MS, USP <730>
- E. coli
- Salmonella
- S. aureus
- Enterobacteriaceae
- Aerobic Plate Count
- Total Yeast & Molds
- Gastric — no disintegration, 0–60 min (USP <2040>)
- Intestinal — complete disintegration, 0–60 min (USP <2040>)
Two Layers.
One Protected
Delivery System.
A delayed-release capsule surrounds individually coated particles, creating two stages of protection before release.
What to Compare When Choosing Serrapeptase
| What to Compare | iSerra™ | What to Look For |
|---|---|---|
| Declared & Measured Activity | 250,000 SPU (130 mg) declared; each lot assayed for actual measured activity. | Is that SPU figure per capsule—or per multi-capsule dose? Does the documentation report measured activity, not just declared weight? |
| Delivery Architecture | Bilamex™ Dual-Phase Delivery — delayed-release capsule + coated particles. | Does the label explain how the enzyme is protected through digestion? |
| Lot-Specific Documentation | COA lookup by production lot. | Can you inspect testing tied to the lot on your bottle? |
| Independent Testing & Access | Independent third-party laboratory testing; original COA available through Veriphase™. | Is testing independent, and can you view the underlying document—not just a summary? |
| Identity Confirmation | Identity confirmed through the USP proteolytic assay used to measure enzyme activity. | Does the documentation confirm identity, not just activity? |