In enzymology, a Hydroxyacylglutathione hydrolase is an enzyme that catalyzes the chemical reaction -S-lactoylglutathione + water ⇌ {\displaystyle \rightleftharpoons } glutathione + a 2-hydroxy carboxylateHence, this enzyme has two substrates, -S-lactoylglutathione and water, and two products, glutathione and a 2-hydroxy carboxylate. Wikipedia