... medical and biology additives 3>eco-friendly. Nano Silver Antimicrobial AgentSpecificationBrownish yellow or yellow according to different concentration ... on cuts, wounds, abrasions, rashes, sunburn, insect bites, razor nicks, bandages or use like peroxide on zits and acne ... etc.), rhinitis, tympanitis, etc, the concertration of nano silver disinfectant is100-250mg/L.4. Culture relic, plant or animal ...