A liquid or gel antimicrobial solution includes a) at least 80% of total weight of a carrier liquid comprising water, alcohol or a mixture of water and alcohol； b) at least 0.001% by weight of the solution of I2 further comprising KI and at least 0.001% by weight of CuSO4, and c) a metallo-peptide, the liquid or gel being substantially free of sulfamic acid. The solution or dry powder format (activated on wetting) may be carried in containers, pouches, packets, fabrics, sponges or other application systems. A dry powder composition is also available.
