Nanjing Health Herb Bio-Tech Co., Ltd.is an ISO-9001 certified & professional manufacturer of Dietary Supplements, including D-Glucosamine Series, Stevia, Natural Caffeine, Green Tea Extract (EGCG), Beta-Carotene, Astaxanthin, Levodopa etc. We could supply all kinds of Optical Brightener, used in textile, plastics and detergent.
D-Glucosamine Series: We are one of the largest manufacturer in China
Stevia: High Rebaudioside A 99% in regular and commercial size supply
Natural Caffeine: We are the legal manufacturer in China solely as it is government licensed product.
Green Tea Extract: High pure EGCG 99% in regular and commercial size supply.
Optical Brightener: OBA OB, OBA OB-1, OBA CXT, OBA EBF, OBA NFW,OBA 4BK,OBA BBU, OBA ER-I, OBA ER-II, OBA VBL, etc.