The present invention relates to an antimicrobial composition comprising polyvalent metal salt of pyrithione; 0.001% to 3% by weight thymol, and 0.001% to 3% by weight terpineol; wherein, the ratio of % weight of polyvalent metal salt of pyrithione to sum of % weight of thymol and terpineol ranges from 0.005:1 to 200:1.