EM Collar - Brown / orange-black-yellow

"EM∗ is a people-friendly and environmentally safe product of EMRO (EM Research Organization) that achieves synergistic effects by combining beneficial microorganisms which exist in nature, such as lactic acid bacteria, yeast and phototrophic bacteria. It was developed by Professor Teruo Higa in 1982. EM∗ activates local and native microorganisms that live in soil and water and maximizes their natural power. EM∗ brand represents a line of microbial products that are used in numerous fields including agriculture, animal husbandry, environmental purification and health care in more than 100 countries around the world.
EM∗ is a trademark and a brand name owned by EMRO, and is used on a variety of products."

Source: https://www.emrojapan.com/what/