Glyphosate 41% SL works by inhibiting the production of an essential amino acid in plants, which eventually leads to their death. The active ingredient in Glyphosate is a broad-spectrum systemic herbicide that works by inhibiting the enzyme 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS). EPSPS is an enzyme that is essential for the production of amino acids, which are essential for plant growth and development. When EPSPS is inhibited, plants are unable to produce essential amino acids, and they eventually die. Glyphosate is absorbed by plants through their leaves and roots. It is then transported throughout the plant, including to the meristems, where new cells are produced. Once glyphosate reaches the meristems, it inhibits the production of new cells, and the plant eventually dies.