A. We can provide you COA with specification standard (tested by HPLC, UV, GC or TLC etc.)

B. Free samples could be sent to check the product quality before ordering.

C. If you have special requirement on the product, we may customize it according to your requirement until to your approval.

A. We could provide 10-20g free samples, but the shipping cost should be on the customers' account. You can either pay the shipping cost or arrange a courier to collect the samples.

B. MOQ is 1kg.

A. Delivery lead time: within 3 working days after get the payment.

B. Samples: please expect 5-10 days by FedEx, EMS, UPS, TNT. Bulk orders: please allow 5-8 days by Air, 20-35 days by Sea.

A: Proforma invoice will be sent first after confirmation of order, enclosed our bank information.

B: Payment by T/T, Western Union or Paypal or Escrow (Alibaba).

A: We offer an unconditional, full money back guarantee. If you are not 100% satisfied with our products, return all goods back (in good conditions) to us within 30 days and we will fully refund your money. No questions asked.