Q: Do you provide samples?
A: Yes, we provide free samples (typically 50-100g) for evaluation purposes. Sample requests are processed within 2-3 business days. Express shipping costs are typically borne by the requester, refundable upon order placement.
Q: How do I request samples?
A: Contact our sales team with your specific requirements: product name, desired specifications, quantity needed, and intended application. We'll confirm availability and arrange shipment promptly.
Q: Can you test our raw materials?
A: Yes, our independent laboratory can test customer-provided raw materials or finished products. We offer comprehensive analysis including active compound quantification, contaminant screening, and identity verification.
Q: What information is included in your COA?
A: Our Certificate of Analysis includes: product name and batch number, appearance and physical properties, active compound content (HPLC/GC), heavy metals, pesticide residues, microbiological counts, solvent residues, and loss on drying.
Q: Do you provide third-party testing?
A: Yes, we can arrange third-party testing through accredited laboratories (SGS, Eurofins, etc.) for additional verification. This is commonly requested for regulatory submissions or customer audits.
Hangzhou Greensky Biological Tech.Co.,Ltd has been a professional natural plant extract manufacturer since 2004. With ISO22000, BRCGS, Ecocert Organic, and SGS-GMP certifications, we serve global markets including Europe, USA, South Korea, and Russia. Visit www.greenskybio.com for more information.
