The present invention relates to an antimicrobial composition at the pH of the skin. Particularly, it relates to an antimicrobial composition comprising water soluble vinyl polymer, a carboxylic acid having pKa greater than 4.5； and an anionic surfactant, wherein the composition has pH in the range 4.5 to 6.5. The compositions provides synergistic antimicrobial effect in relatively shorter contact time. The invention further relates to a method of disinfecting a surface using the composition.
