Colloidal silver (nano silver particles suspended in water) has long been studied for its antibacterial properties. When produced correctly, it creates an effective antimicrobial spray solution.

The author visited Đinh Xuân Bá to learn the home production process and found the results remarkably effective. The technique uses electrical current to release microscopic silver particles into distilled water.

Colloidal silver should be used with awareness — it is a tool, not a cure-all. Research its applications and limitations before incorporating it into your routine.

— Thiện Minh