What happens if leaf harvest fails or raw material supply is disrupted?
Multi-region farms (Sichuan/Shaanxi/Hubei), 3-month leaf buffer. Annual supply agreement recommended for >3 MT/year.
How much does a sample of the 10% Epimedium extract cost and is it free?
Free sample ≤100 g (buyer pays shipping). Recommend requesting 10% + 30% side-by-side. COA from same batch.
How does seasonal harvest affect 10% grade pricing and availability?
Leaf harvested spring–autumn. 10% grade stable availability; order Q1 for best price, build buffer before peak season.
What is the shelf life of the 10% grade and what are the storage requirements?
24-month shelf life. Store < 25°C, < 50% RH, away from light. Brown-yellow powder. Stability reports on request.
What is your return and refund policy for the 10% grade?
Returns on spec failure / contamination / wrong product (seller pays). Most issues via partial refund or future credit to avoid double freight.
Can you expedite a 10% grade order if we need it urgently?
Rush 7–10 days (+15%), Super Rush 3–5 days (+25–30%). Best off-peak. Bonded warehouse safety stock recommended.
How do you ensure consistency between the 10% sample and your bulk order?
Batch-level QC + pre-shipment COA. Icariin within ±2% of sample. HPLC-controlled standardization.
What supplier quality certifications and audit capabilities do you have for the 10% grade?
ISO 22000, FSSC 22000, HACCP, GMP, FDA reg, Kosher/Halal, Organic. Supports SGS/BV/Intertek + Sedex/Ecovadis.
What regulatory documentation do you provide for the 10% grade in our market?
TDS, COA, Origin, Health, Non-GMO, Organic, Kosher/Halal standard. Market-specific (FDA reg, EU novel food check, etc.) available.