This premium grade two stage process Amber Colloidal Silver is more than 80% Colloidal. One of the very few True Colloidal Silver Solutions available. It complies with EU Cosmetic Regulation (EC) No 1223/2009 Independently tested and compliant. Established in 2011 our quality products are backed by over a decade of experience. Colloidal Silver was first used as an antibiotic in 1891, historically silver has been used medicinally as far back as Ancient civilisations.