Product main functions:Nutrition in Plants & with rich Selenium which provide trace element to improve people's immunity & better health (1-1). Power Se #1: Improve plant photosynthetic efficiency (1-2). Power Se #2: Improve plant root development & heat resistant (1-3). Power Se #3: Improve the cracking resistance & firmness of fruits (1-4). Power Se #5: for Leafy vegetables (2-1)Orange Power #1,#2,#3  for Citrus in different growing stage 1. Complied with most other fertilizers to spray to orchard or any kind of plant fields. 2. Easy to use : dilute by 800~1200 times water & could be mixed with other fertilizers. 3. Long lasting effect: the Selenium & other trace elements could be existed in soil very long. Amber's liquid rich Selenium fertilizer could produce crop with rich Selenium , after consumers digest these crops could absorb Selenium. And the following are the 6 functions of selenium: (Note: Source: health website https://www.commonhealth.com.tw/ 1. Promote metabolic health: After selenium is converted into selenoprotein, it can resist free radicals and enhance metabolic circulation, promoting human health. 2. Protect cardiovascular disease: Selenium can prevent arteriosclerosis, slow down inflammatory reactions, and prevent the risk of cardiovascular disease. 3. Maintain thyroid function: The thyroid gland in the human body contains the most selenium. Appropriate supplementation can prevent symptoms such as thyroiditis. 4. Maintain skin health: Selenium’s excellent antioxidant capacity can reduce the occurrence of acne and acne in the skin. 5. Prevent osteoporosis: Selenium can promote better bone formation and slow down bone loss. 6. Enhance the immune system: Selenium protein helps to resist oxidation, further protect the body and enhance immunity.