1.1.1.237 (R)-3-(3,4-dihydroxyphenyl)lactate + NAD(P)+ = 3-(3,4-dihydroxyphenyl)pyruvate + NAD(P)H + H+ 1.1.1.237 (R)-3-(4-hydroxyphenyl)lactate + NAD(P)+ = 3-(4-hydroxyphenyl)pyruvate + NAD(P)H + H+