Profile: Ningbo Liwah Pharmaceutical Co., Ltd. is specialized in plant extract. Our products are mainly categorized into three groups such as raw material medicine, plant extract products, and traditional Chinese medicine particles. Our products include pharmaceutical ingredients, CTM extract granule, and plant extracts. We offer huperzine-a; it is the active ingredient extracted from Huprzia serrata (lycopodium serratum). Our capsaicin is a naturally occurring substance derived from plants of the solanaceae family (red peppers); it contains capsaicin, dihydrocapsaicin, and other capsaicinoids. Our lutein is a natural pigment of the carotenoid family. It is widely found in nature, mainly in vegetables and fruits. In the human body, it is found in tissues such as liver, pancreas, ovaries, testicles, and in the macula, lens & retina of the eye. Just like other carotenoid, lutein acts as an antioxidant, protecting cells against the damaging effects of free radicals and/or used as a filter in light sensitive tissues such as the eye macula, lens and retina. Unlike ?-carotene, lutein is not a vitamin a precursor. It is increasingly recognized as a key factor in maintaining the health of the macula, an area in the back of the eye's retina that creates the sharpest vision. Free radical damage from sunlight and other environmental factors generally results in the onset of age-related macular degeneration. The lutein is not present in the human body and has to be obtained from food (preferably spinach, kale, collard, broccoli, and peas). Nowadays, lutein has become an increasingly popular active ingredient used in the nutritional supplements industry.