The active's supplier lot
With its certificate of origin.
Every lot is characterised in ISO/IEC 17025-accredited laboratories against certified reference materials, with methods and acceptance criteria disclosed so results can be independently reproduced, and a retained sample held.
| Parameter | Method | What it establishes |
|---|---|---|
| Particle size (Z-average) | DLS after redispersion | The active is carried in vesicles within the liposomal size range |
| Polydispersity index | DLS | Uniformity of the vesicle population |
| Zeta potential | ELS | Colloidal stability |
| Encapsulation efficiency | Separation + active assay | The proportion of active actually inside the vesicle |
| Active content | HPLC / ICP-MS | The label claim is met |
| Identity | Certified reference material | The active is what it is declared to be |
| Heavy metals | ICP-MS | Lead, arsenic, cadmium, mercury |
| Microbiology | USP / ISO methods | TPC, yeast & mould, E. coli, Salmonella, S. aureus |
Numerical specifications per active are issued with the technical data sheet and the lot-specific certificate of analysis. We do not publish figures we have not measured.
Full traceability accompanies the certificate of analysis for the lot.
With its certificate of origin.
The sunflower field lot the phosphatidylcholine came from.
The production record for the encapsulation run.
Held and referenced, so the lot can be re-tested later.
Claim only what you can hand over on demand.