In botanical extraction, the biggest quality risk is variability: harvest season, peel origin and process drift can all move the numbers. A disciplined QC system is what turns a plant extract into an industrial raw material you can build a formulation on.

Our four checkpoints

1. Raw material screening — every incoming citrus peel lot is sampled and fingerprinted before it enters production.
2. In-process monitoring — extraction temperature, pH and solvent ratios are logged continuously, not retrospectively.
3. HPLC release assay — each batch is tested against its declared specification; the COA reflects the actual drum you receive.
4. Retained samples — we keep retention samples from every lot so historical batches can always be re-verified.

The result: when you reorder hesperidin 90% six months later, it performs like the first delivery. That consistency is the quiet advantage behind our long-term customer relationships.