biotin CAS NO.58-85-5

1) we are the sales represntative of the factory who produce this .

2) we are dealing in this field for more than ten years . we have experience to handle this

3) we have a laboratory which can test the materials in our own lab before export ,so we can gurantee to you the quality

4) payment terms : we can accept t.t ,dp ,lc 60 days . more flexible .

5)we enjoy a good reputation in china ,so you can trust us .