Tianhong has a strong quality assurance team headed by a director who holds a Ph.D. In chemistry, and equipped with many advanced assay instruments. To ensure that the herbs we use are vital and potent, and to prevent any use of adulterants, every herb is first checked in the traditional organoleptic manner (assessment of taste, smell, appearance, and relative of analytic tests. These include qualitative analysis using ultraviolet and infrared spectrophotometry and high performance liquid chromatography (HPLC), as well as atomic absorption (AA) screening for heavy metals, and full microbiological testing to insure all herbs are free of pathogenic bacteria. The full control on the production process and final product test are also conducted by the Quality Assurance System.

Tianhong' s expertise in gas/liquid chromatography/mass spectrometry and sensory evaluation leads our technical team to new product breakthroughs in natural botanical extracts, pharmacutical intermediates and high-purity active ingredients.