However, stabilizers can interfere with effectiveness. Also, a chemical process can be used but the end product is usually too acid and not as effective. This process replaces the need for any chemicals or stabilizers and the product can be called a true colloid. Then, the particles can remain in suspension almost indefinitely. Other products that are not true colloids will be another color, unless coloring is added.
Color is a critical indicator of colloidal silver quality.
However, be aware of products with higher concentrations as they can attack friendly bacteria just like some antibiotics. This could upset your natural balance and lead to other complications. With colloidal silver, higher concentrations are not necessarily better. As a matter of fact, the opposite is usually true. Not all Colloidal Silver is of equal quality.