Since 1994, NPSW has provided health food stores, practitioners and loyal customers the highest quality colloidal silver on the market.
Natural Path / Silver Wings 250 ppm and 500 ppm colloidal silver can be diluted to 10 ppm, thus making it colorless.
Many of our customers prefer to take a full strength dose as needed. Our colloidal silver is guaranteed to be a pharmaceutical grade. Highest Quality !!