Shelf Life of Colloidal Silver

What is the shelf life of colloidal silver?

How long will colloidal silver last if stored properly? What is the best way to store it? The shelf life of colloidal silver has been proven to last over 10 years when stored correctly! This is dependent on meeting the proper storage conditions. Mountain Well-Being Colloidal Silver comes with a guaranteed shelf life of three years.

What are the proper conditions to maximize shelf life of colloidal silver?

It’s simple, to correctly store colloidal silver to last as long as you need, there are three key factors to keep in mind.

  1. Store colloidal silver at room temperature. Extreme temperatures can shorten the shelf life.
  2. Keep colloidal silver out of direct light and store it in amber or cobalt colored glass containers. Plastic containers will definitely shorten the shelf life.
  3. Keep colloidal silver away from strong electromagnetic frequencies, such as appliances or computers. Each silver ion and particle have an electric charge that keeps them colloidal (or suspended) in the liquid. They can lose their charge more quickly when exposed to strong electromagnetic fields.

A kitchen cupboard or a bathroom medicine cabinet is an ideal spot to keep your bottle of colloidal silver. But honestly, I keep a bottle in my bathroom, kitchen, truck, next to my bed, and in my Camelbak for when I’m on the trail. As long as the conditions above are met, it really doesn’t matter where you keep it.

Where and how do you store your colloidal silver?

16 Responses to Shelf Life of Colloidal Silver

  1. Tascha July 26, 2017 at 5:56 pm #

    So… if I kept mine in the refrigerator the shelf life might be diminished? It was recommended to me to extend the shelf life…

    • Jonathan Glauser July 27, 2017 at 12:00 pm #

      Hello Tascha,
      For the longest possible shelf life (10 years+), it’s best to store colloids at room temperature. If you’ve put yours in the refrigerator for a short time, there should be no problem.
      Be well,

  2. Frank September 13, 2017 at 4:23 pm #

    How about opened bottles? I use colloidal silver for sinus/cold issues. If the seal is broken and you don’t use all off the bottle. What is the shelf life then if it’s stored properly?

    • Jonathan Glauser September 13, 2017 at 8:58 pm #

      Hello Frank,
      As long as you pour out of the bottle and replace the cap immediately, the shelf life should be the same. Make sure you don’t touch your lips to the bottle, and no foreign contaminants get into the bottle. Are you using colloidal silver both internally and in the sinuses? That’s what I’d recommend for sinus issues. Our newest product, Sulfur Silver Sinus Spray, works great if you haven’t tried it yet. You can find it here:
      Be well,

      • Frank September 14, 2017 at 6:40 pm #

        I just use it internal but I will look into the spray. Thanks for your quick response. Take care

    • Michelle Yap November 9, 2017 at 3:05 am #

      Did you still consume it tho Tascha? it’s actually making me curious and I’ve read so many articles about storage but I haven’t encountered anything about it still being okay to drink

      • Jonathan Glauser November 14, 2017 at 2:41 pm #

        Colloidal silver, when made properly, is safe to drink.

  3. Peter Finlay October 4, 2017 at 10:55 am #

    How effective is colloidal silver as a mouth wash for mouth ulcers? How long should it take for the ulcer to go?

    • Jonathan Glauser October 9, 2017 at 3:58 pm #

      Hello Peter,
      We are not allowed to make any medical claims, but if it were me, I’d swish with colloidal silver at least several times per day. The longer you can swish with it in your mouth, the better.
      Be well,

  4. Daniel October 27, 2017 at 9:48 am #

    I stored a quart of colloidal silver just as you recommend, in amber glass, dark, room temp. As I am working my way down the bottle I noticed that the color appears to be yellower than at first. That is what started my query about shelf life. Do you have an information about that? Is that an indication of spoilage? What are the indications of spoilage?

    • Jonathan Glauser November 7, 2017 at 1:19 pm #

      Hi Daniel,
      We make our colloidal silver as strong as possible while still keeping the particle size as small as possible. Although our colloidal silver label says 15ppm, it’s actually produced closer to 20ppm. Sometimes when a bottle if halfway used up, some evaporation occurs which can cause the CS to get a little more concentrated. This can make the liquid turn slightly yellow instead of being completely clear. This is not too unusual and is not a sign that your CS has spoiled. A slight yellow color is acceptable, it just means that some more of the ions have been reduced into particles, giving the slight yellow/golden color. Another thing that can cause this is any contaminants getting into the bottle, so make sure to always pour out of the bottle (never put your lips to the bottle) and replace the cap immediately. If dust, backwash, or any other contaminant get in, then the color can change. If it’s a pale yellow, then be assured it is still safe to use. Spoilage is rare and would be seen as black sediment on the bottom of the bottle.
      Be well,

  5. Michelle Yap November 9, 2017 at 2:58 am #

    Is it safe to consume colloidal silver if it was placed in the refrigerator for a few hours, what if the particles are still intact? Is it safe to consume?

    • Jonathan Glauser November 14, 2017 at 12:16 pm #

      Hello Michelle,
      Yes, your colloidal silver is definitely safe to consume. Putting CS in the refrigerator won’t ruin it, but it will have a longer shelf life if you keep it at room temperature.
      Be well,

  6. Julia Pythe November 30, 2017 at 10:46 pm #

    If my silver changes odor and taste, almost indescribable, is it still safe to consume?

    • Jonathan Glauser December 4, 2017 at 3:17 pm #

      Hi Julie,
      Thanks for your question. Mountain Well-Being Colloidal Silver contains both silver particles and silver ions. Some people can detect a slightly metallic aftertaste (sometimes described as bitter) when they swallow colloidal silver, which is due to the silver ions. It is perfectly normal and actually desired. Sometimes the taste is more obvious than other times, depending on what was on the tastebuds prior to taking colloidal silver. It may taste strong one time and then have almost no taste the next.

      As for odor, colloidal silver is generally odorless. What exactly do you smell? It’s very important to keep all contaminants out of the bottle. Never put your lips directly on the bottle. If any backwash or other contaminant get into the bottle, it can react with the colloidal silver and change color, taste and possibly odor. I’ll wait to hear back from you.

      Thank you,


  1. Constant scratching - Page 2 - Forums - Yorkshire Terrier Community - June 16, 2015

    […] It is also recommended that you keep the product away from sources of electromagnetic energy (microwaves, electrical outlets) and direct sunlight. Look at this link: Colloidal Silver Shelf Life & Storage – Mountain Well-Being […]

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