TRACEABILITY & RETENTION
Lot traceability and retention samples for OEM/ODM production
At 2T Cosmetic Lab, traceability and retention are mandatory parts of the production system, ensuring control, verification, and lot-level comparison across the product lifecycle.
Each production lot is assigned a unique ID with linked batch records and retention samples. Data is structured to allow backward traceability to raw materials and forward traceability through production history.
Operating method
- Each lot has a unique lot code linked to technical records and production logs.
- Retention samples are collected and stored by lot with a defined retention period.
- Batch records include raw materials, process parameters, QC checks, and approval status.
- Data is stored systematically for inspection, comparison, or traceability on request.
Purpose of retention and traceability
The system enables:
- Verification of consistency between production lots.
- Investigation of deviations or technical requests.
- Support for internal review, quality assessment, and external verification.
Retention is treated as part of long-term risk control, not a formality.
Role in OEM/ODM
In OEM/ODM operations, traceability and retention provide:
- Lot-level transparency for partners.
- Support for technical review and verification.
- Consistency across lots when scaling production.
2T Cosmetic Lab treats this system as a core operating standard for long-term partners with strict production control requirements.