Can I use Sovereign Silver Bio-Active Silver Hydrosol after the 3-year expiration date? All Sovereign Silver products carry a 3-year expiration date, supported by evidence from stability studies. ... It is always best to consume the product by (or before) the expiration date.

Does silver colloidal expire?

What is the Shelf life of your product? Our Colloidal Silver has a minimum shelf life of two years, however once opened, we do recommend you use it withing 6 months. Glass bottles tend to preserve the delicate charges better over the long term & we know a client who had their Colloidal Silver for over 10 years!

How long does liquid silver last?

As per the manufacturer, Natural Immunogenics says, "The shelf life is 3 years."