1. How is the quality

The qualities of most products are above 99% purity, some are 99.5% purity.

2, How is the package

Foil bag or as customer's required.

3, How is the storage

Keep in dry and cool place.

4, Do I need to pay extra for shipping cost

No, our price includes the shipping cost already; you need not pay for any tax and others.

5, Can I order sample to test 

Yes, you are welcome to order sample before placing bulk order. We will send the sample directly to your door by courier.

6, minimum quantity

Usually our minimum quantity is 5g. But you are welcome to order samples to check the quality and our service.