Residual Solvent Limits in Botanical Extracts: ICH Q3C Classes and What to Demand on the COA

ICH Q3C Class 1, 2 and 3 residual solvents explained, with limits and the COA wording a botanical extract buyer should insist on.

Water Activity vs Moisture Content: Why Two Extracts at the Same Moisture Behave Differently

Moisture content and water activity are not the same number. Why water activity governs shelf life, caking and microbial growth.

What a buyer’s auditor checks on a botanical extract plant visit: the seven areas, documents to prepare and the findings that recur.

Which botanical extracts need EU novel food authorisation before market entry, and how exporters evidence traditional-use history.

How B2B buyers verify a botanical extract is the species on the label: authentication methods, adulteration red flags and COA checks.

Black turmeric extract powder, Curcuma caesia, a distinct species from common turmeric. Bulk B2B specification and applications.

Ajwa date (kurma) extract powder, Phoenix dactylifera, in bulk from Malaysia: specification, applications and halal B2B supply.

Chinese yam (shan yao) extract powder, Dioscorea polystachya, in bulk from Malaysia: specification, applications and B2B supply.

Sourcing a botanical extract for skincare? What changes vs a food-grade ingredient — solubility, colour carry-over, preservation, pH and INCI naming.

GACC Decree 248 was replaced by Decree 280 on 1 June 2026. What botanical extract and food ingredient exporters must now do to ship into China.