Dear Sir or Madam,

Please allow me to introduce our company as a professional supplier in the field of botanical extract and chemical material. We, Yongwah Biotech Ltd., established in the year of 2000, is a modern and high-tech enterprise, specilizing mainly in the botanical extract and in scientific research, development , producing and marketing.

Our product are as follows for your reference.

*Epimedium extract product series 

*Giant knotweed product series 
1 Resveratrol 10%～～98% HPLC 
2 Polydatin 10%～～99% HPLC 

*Green Tea extract product series

*Silymarin product series 

*Soya extract product series 

*Wild jujube seed extract product series 

*Monomer extract product series 
1.  Apigenin 98%HPLC

2.  Chrysin  98%HPLC

3.  Colchicine  98%HPLC

4.  Cordata alkaloids  60%

5.  Diosgenine  98%HPLC

6.  Emodin  50%--95%HPLC 

7.  Esculin 97%HPLC

8.  Formononetin 90%HPLC

9.  Genistein 98%HPLC

10. Homoharringtonine 98%HPLC

11. Huperzine A  99%HPLC

12. Luteolin 98%HPLC

13. Puerarin  98%HPLC 

14. Rubescensin 98%HPLC

15. Resveratrol 98%HPLC

16. Salicin  98%HPLC

17. Silybin 90%HPLC

18. Synephrine  98%HPLC

19. Solanesol 98%HPLC

20. Tetrandrine 98%HPLC

21. 5-HTP 98%HPLC

*Chinese herbal extract product series 
No./Product Name/Specification/Test Method 

1. Angelica Root P.E. Ligustilide ≥1% HPLC 

2. Astragalus P.E. Polysaccharides≥40% UV 

3. Billberry P.E. Anthocyanidins≥25% UV 

4. Black Cohoh P.E. Triterpene Glysoside≥2.5% HPLC

5. Citrus Aurantium P.E. Synephrin≥2%，6%, 8%, 30% HPLC

6. Epimedium  P.E. Icariin ≥5%--50% HPLC 

7. Ginkgo Biloba P.E. 24/6 HPLC 

8. Grape seed P.E. Proanthocyanidin≥40%--95% UV 

9. Jujuba P.E. Jujuboside ≥1% HPLC 

10. Picrorhiza kurrooa P.E.  Picroside≥5% & Apocynin≥5% HPLC

11. Pueraia P.E. ≥20%--80% HPLC 

12. Red Clover P.E. Isoflavones≥8%,Isoflavones≥20% HPLC 

13. Rheum P.E. Rhein≥0.5% HPLC 

14. Rhodiola Rosea P.E. Salidroside≥1%,2% HPLC ; Rosavin≥1%, 2%,3%,5% HPLC 

15. Schisandra Fruit P.E. schisandrins≥2% ,5%, 9% UV/HPLC 

16. Siberian Ginseng P.E. Eleutheroside B+E≥0.8% HPLC 

17. ST.John\'s Wort P.E. Hypericin≥0.3 UV

18. Tribulus Terestris P.E. Tribulosides≥40% UV 

19. White willow bark P.E. Salicin ≥15% ,25%,30%HPLC

20. Wild Yam P.E. Diosgenin≥6%,10%,16%,20% HPLC 

If you require any product wihch does not appear in the list, please do not hesitate to send your enquiries for the same.

In today\'s fast paced and ever changing marketplace, the need for a dependable, versatile manufacturer is immense. 

We,Yongwah Biotech Ltd., is your reliable partner in the field of Herbs and Botanical Extract, Pharmaceutical raw material and Chemical material.

We are looking forward a longer and fruitful cooperation with you.

Your early response would be highly appreciated.


Thanks and Regards,

Valiant Wang
Sales Manager