Ultimate Colloidal Silver™ 5 ppm
A simple liquid colloidal silver supplement providing 13 mcg of silver per 2.5 mL serving at a concentration of 5 ppm
Description
Is This Right for You?
This product may be a good fit if you:
- Want a gentle 5 ppm colloidal silver option for those who prefer a lower-concentration formula
- Prefer an exceptionally simple liquid made with just purified water and suspended silver
- Want micronized silver in a convenient, ready-to-use liquid with no complicated ingredient list
- Like products that keep things simple: silver, water, and not much for the label writer to do
Are you looking for a higher-concentration option? See Colloidal Silver 10 ppm
Key Benefits
- Provides a measured amount of silver in each serving
- Uses microfine silver in suspension in a simple purified-water formulation
- Offers a lower-concentration alternative to our Colloidal Silver 10 ppm (parts per million) formula
- Includes detailed research and safety information to help you make an informed decision about colloidal silver
Features
- 5 ppm colloidal silver concentration
- 13 mcg of silver per 2.5 mL serving
- 48 servings per container
- Approximately 4 fl oz (120 mL) per bottle
- Convenient dropper bottle
Our Curated Standard
We favor whole-food and plant-based nutrition whenever practical, while recognizing that some nutrients are best delivered through thoughtfully formulated supplements. Every product we carry is evaluated for its ingredients, formulation, and how well it aligns with our standards before we recommend it.
Why These Ingredients Matter
| Ingredient | Why |
|---|---|
| Silver (as colloidal silver) | Silver is known for its antimicrobial properties and has been used in certain medical applications.1 These findings do not establish the effectiveness of oral colloidal silver for treating or preventing disease.2 |
Know where your supplements have been. Your order ships directly from Youngevity, not from a third-party reseller. You may find the same product for a few dollars less elsewhere, but with reseller inventory, it can be difficult to know how long a product has been stored or under what conditions.
There’s more to consider than the lowest price. Back to purchase ↑
Why We Carry It
We already carry a 10 ppm colloidal silver formula, but Ultimate Colloidal Silver™ gives customers a distinctly different option: a lower-concentration formula providing 13 mcg of silver per 2.5 mL serving, with pure microfine silver in suspension and purified water. We chose to carry both so customers looking for colloidal silver can compare the formulations and concentrations rather than having only one option.
Silver, colloidal silver, and silver nanoparticles have a substantial body of published antimicrobial research behind them. Laboratory and experimental research has examined activity involving bacteria, antibiotic-resistant organisms, biofilms, fungi, and viruses.1,4,5,6 Researchers have also investigated silver-based formulations in combination with conventional antimicrobial treatments.5
Human clinical research remains much more limited. Researchers have identified significant barriers to moving silver nanoparticle research into clinical trials and clinical use, including regulatory requirements, lack of standardized manufacturing and characterization, differences among silver formulations, questions surrounding toxicity and dosing, and the considerable cost of clinical development.7 Those limitations don’t establish that taking this particular colloidal silver supplement orally treats or prevents disease, but they are important context when considering why a substantial laboratory literature has not produced an equally substantial body of human clinical trials.
That’s why this is a product we think deserves an especially even-handed presentation. Rather than asking you to accept either sweeping claims for colloidal silver or sweeping dismissals of it, we’ve chosen to present the formulation, published research, regulatory context, known safety concerns, and limitations of the evidence so you can evaluate the information for yourself.
Why I Recommend It
I’ve kept colloidal silver in our cabinet for years, usually right alongside Taheebo, so this isn’t a category I added simply because Youngevity offers another version. My long-term personal experience has been with colloidal silver generally, rather than specifically with this Ultimate 5 ppm formula. What interests me about Ultimate Colloidal Silver™ is that it gives customers another clearly labeled option. Some people specifically look for a lower-concentration colloidal silver product, and I would rather offer enough information to compare the two than assume one concentration is right for everyone. Because apparently, I felt like one colloidal silver wasn’t enough for me to explain.
My own experience with colloidal silver is part of why I remain interested in it, but personal experience isn’t clinical evidence. There is a substantial body of published research examining the antimicrobial properties of silver, colloidal silver, and silver nanoparticles, while much of that research remains laboratory or experimental rather than human clinical research. Different silver formulations also cannot simply be treated as interchangeable.
My job here isn’t to tell you what conclusion you should draw from my experience or the research. It’s to give you enough good information to draw your own.
What’s In It
Colloidal Silver; Other Ingredients: Purified Water, Pure Micro Fine Silver in Suspension
How to Use It
Adults: Take ½ teaspoon (2.5 mL) daily, preferably in the morning. Children: Take ¼ teaspoon daily. Store at room temperature away from direct sunlight. If you are pregnant, nursing, or taking medications, consult your healthcare professional before using this product.
Frequently Asked Questions
Product Questions
What’s the difference between Ultimate Colloidal Silver™ and Colloidal Silver 10 ppm? Ultimate Colloidal Silver™ is a 5 ppm formula providing 13 mcg of silver per 2.5 mL serving and uses pure microfine silver in suspension with purified water. Our Life Force Colloidal Silver is a 10 ppm formula providing 40 mcg per 4 mL serving and contains colloidal silver and deionized water. They also have different directions for use, so the two products should not be treated as interchangeable formulations.
If silver has antimicrobial properties, doesn’t that mean drinking colloidal silver has the same effect? Not necessarily. Silver has demonstrated antimicrobial activity and has specialized medical applications,1 but those findings cannot automatically be applied to an orally consumed colloidal silver supplement. The route of administration, form of silver, concentration, exposure, and conditions being studied all matter.1,5
Is colloidal silver an antibiotic? No. This product is a dietary supplement containing silver in colloidal form. It should not be equated with an antibiotic or used as a substitute for appropriate medical treatment.2
What is argyria? Argyria is a permanent blue-gray discoloration of the skin associated with silver accumulating in body tissues, typically following prolonged or excessive silver exposure.3 It is one of the recognized safety concerns associated with colloidal silver use.
Can colloidal silver interact with medications? Colloidal silver may interfere with the absorption of certain medications.3 If you take medications, consult your healthcare professional before using this product.
Why do the answers on this page sound a little more matter-of-fact than some of your other product FAQs? Thanks for noticing. Colloidal silver comes with a long history, genuine scientific interest, and its share of controversy and exaggerated claims. For that reason, I think it’s especially important to be precise about what the research does—and doesn’t—tell us. This product is a liquid dietary supplement containing colloidal silver, with purified water and pure microfine silver in suspension. I want to give you good information from reputable sources and let you decide whether it makes sense for you.
Do I get extra credit for knowing what ppm means before I got to this page? Absolutely. Well, not officially. But you have earned my nerd seal of approval (silver-colored, of course).
Ordering Questions
What does "autoship" mean? It's an automatic, scheduled monthly (or every other month) delivery, so you never run out. Bonus: if your autoship order (after your first order) is over $100, shipping is free.
Can I change or cancel autoship? Yes. You will receive an email from Youngevity as a reminder before your next shipment, with a number to call if you wish to skip or cancel your autoship.
When will my order be processed? Orders are reviewed and processed after they are submitted. Because the amount shown in your cart is a quote, any necessary adjustments to shipping or sales tax are made before your order is finalized. Your payment information is handled through our PCI-compliant secure cart provider.
The following references are provided for general educational information about the research and subjects discussed on this page and should not be interpreted as endorsements of this product:
1Use of Silver in the Prevention and Treatment of Infections: Silver Review, Politano AD, Campbell KT, Rosenberger LH, Sawyer RG. Surgical Infections. 2013;14(1):8-20. doi: 10.1089/sur.2011.097
2Drug Products Containing Colloidal Silver Ingredients or Silver Salts Offered Over-the-Counter (OTC) for the Treatment and/or Prevention of Disease, 21 CFR § 310.548, U.S. Food and Drug Administration
3Colloidal Silver: What You Need To Know, National Center for Complementary and Integrative Health, National Institutes of Health
4Antibacterial Activity of Colloidal Silver against Gram-Negative and Gram-Positive Bacteria, Vila Domínguez A, Ayerbe Algaba R, Miró Canturri A, Rodríguez Villodres Á, Smani Y. Antibiotics. 2020;9(1):36. doi: 10.3390/antibiotics9010036
5The Silver Lining: Towards the Responsible and Limited Usage of Silver, Naik K, Kowshik M. Journal of Applied Microbiology. 2017;123(5):1068-1087. doi: 10.1111/jam.13525
6Silver Nanoparticle-Mediated Antiviral Efficacy against Enveloped Viruses: A Comprehensive Review, Mosidze E, Franci G, Dell’Annunziata F, et al. Global Challenges. 2025;9(5):2400380. doi: 10.1002/gch2.202400380
7An Uphill Path to Commercialization of Silver Nanoparticle Antimicrobials: From Bench to Market, Nadar S, Safwat A, Qin N, Czyż DM. Nanomedicine. 2025;20(18):2305-2308. doi: 10.1080/17435889.2025.2518914
* Health Information: These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease. The information on this page is for educational purposes and is not intended as medical advice. Always consult your healthcare provider regarding your individual health needs.
Research Bibliography
For readers who would like to explore the research further, the bibliography below includes original research, human studies, toxicology research, scholarly reviews, and other scientific literature examining silver, colloidal silver, and silver nanoparticles, including antimicrobial activity, antibiotic-resistant organisms, biofilms, fungi, viruses, potential medical applications, human research, safety, and limitations in translating laboratory findings into clinical use. The publications involve different forms of silver, concentrations, methods of administration, experimental models, and research questions, and some of the review articles discuss primary studies that are also included separately in this bibliography. The Ultimate Colloidal Silver™ product sold on this page was not evaluated in this body of research. Inclusion of a publication in this bibliography does not mean that its findings apply to this product or constitute an endorsement of its use. The FDA has found a lack of adequate data to establish colloidal silver as safe and effective for treating or preventing disease.2
Conflict disclosure: A conflict-of-interest statement was not identified in the publication information reviewed
Conflict disclosure: The authors declared no conflicts of interest
Conflict disclosure: A conflict-of-interest statement was not identified in the publication information reviewed
Conflict disclosure: The authors declared no competing financial interest
Conflict disclosure: The authors declared that the research was conducted without commercial or financial relationships that could be construed as a potential conflict of interest
Conflict disclosure: The authors declared no competing interests
Conflict disclosure: The authors declared no competing financial interest
Conflict disclosure: The authors declared no potential conflicts of interest related to the research, authorship, or publication
Conflict disclosure: Nan Qin, Carmen C. Nunez Rodriguez, and Lauren A. Alt were employees of Natural Immunogenics Corporation. The remaining authors declared no commercial or financial relationships that could be construed as a potential conflict of interest
Additional disclosure: Natural Immunogenics Corporation funded the study, supplied the silver nanoparticle products evaluated, and participated in product characterization using atomic absorption spectroscopy and transmission electron microscopy
Conflict disclosure: Calin V. Pop and Nodari Rizun reported being shareholders of Noble Elements/NOBEL LLC, and Rizun was the company’s executive director. The other authors declared no conflict of interest
Additional disclosure: Noble Elements/NOBEL LLC developed the experimental silver nanoparticles evaluated in the study
Conflict disclosure: A conflict-of-interest statement was not identified in the publication information reviewed
Conflict disclosure: The authors declared no conflicts of interest or financial interests in any product or service mentioned in the article
Additional disclosure: The 10 ppm and 32 ppm study products were commercially manufactured silver nanoparticle solutions; the 10 ppm study product was manufactured by American Silver, LLC
Conflict disclosure: The authors declared no conflicts of interest
Conflict disclosure: The authors declared no conflict of interest
Conflict disclosure: The authors declared no conflict of interest
Conflict disclosure: The authors declared that the research was conducted without commercial or financial relationships that could be construed as a potential conflict of interest
Additional disclosure: The authors acknowledged support associated with King Saud University Researchers Supporting Project RSP-2020/134 and thanked their institutions for research facilities
Conflict disclosure: Eudald Casals reported employment by Premium Research SL. The remaining authors declared no commercial or financial relationships that could be construed as potential conflicts of interest
Conflict disclosure: The authors declared no conflict of interest
Conflict disclosure: The authors declared no conflicts of interest
Additional disclosure: Ajman University provided assistance with the article-processing charge
Conflict disclosure: The authors reported no relevant affiliations or financial involvement with organizations having a financial interest in the subject matter, including employment, consulting, stock ownership, grants, patents, or royalties
Conflict disclosure: Nan Qin reported employment by Natural Immunogenics Corporation, a manufacturer of supplemental silver products. Daniel M. Czyż reported receiving funding from Natural Immunogenics Corporation to study the antimicrobial properties of silver nanoparticles. The authors reported no other relevant financial relationships
Additional disclosure: The Natural Immunogenics relationships concern author employment and prior research funding; the authors state that this particular editorial was not funded
And an interesting read: Lansdown Alan B.G. A Pharmacological and Toxicological Profile of Silver as an Antimicrobial Agent in Medical Devices. Advances in Pharmacological Sciences. 2010;2010:910686.
