Don’t grow bacteria in your water bottle
Coin of Harmony – a water purifier harnessing the natural power of real silver and copper to kill bacteria on contact.1
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Be Honest
Do you actually wash your water bottle every day? Do your kids?
Proven Purification
Through history, silver and copper have been used to keep water pure. The American wagon train pioneers used silver coins to keep water bacteria free.2
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Today, NASA astronauts rely on a silver-based water purification system in the International Space Station.3
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Say Goodbye to Bacteria
Now with the Coin of Harmony, you and our family can experience the same water purification technology in your everyday life.
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Easy to Use
Just drop the Coin of Harmony into your water bottle, shake and enjoy fresh, purified water with every refill. Reusable for years.
Learn More- Do not Swallow
- With repeat use, Coin of Harmony may turn darker, this illustrates that the coin has real silver and copper. This does not affect the ability to kill bacteria
- Coin does not remove chemicals or contaminants.
Perfect gift for Moms and everyone you care about.
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Buy 4 Get 1 Free
For a limited time – When you buy 4 Coin of Harmony coins you’ll receive a 5th coin absolutely Free.
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Portable Protection
Take your Coin of Harmony everywhere to enjoy purified water. Perfect for school, work, hiking, sports, and people on the go.
- Clement, Julia L., Jarrett, Penelope S., Antibacterial Silver, Metal-Based
Drugs, 1, 707103, 16 pages, 1994. https://doi.org/10.1155/MBD.1994.467
University of Arkansas. "How silver ions kill bacteria." ScienceDaily. ScienceDaily, 9 April 2020. (www.sciencedaily.com/releases/2020/04/200409140021.htm)
Richard L. Davies, Samuel F. Etris, The development and functions of silver in water purification and disease control, Catalysis Today, Volume 36, Issue 1, 1997, Pages 107-114, ISSN 0920-5861, (https://www.sciencedirect.com/science/article/pii/S0920586196002039)
L. Smith, Chapter Twelve - Historical Perspectives on Water Purification, Editor(s): Satinder Ahuja, Chemistry and Water, Elsevier, 2017, Pages 421-468, ISBN 9780128093306,(https://www.sciencedirect.com/science/article/pii/B978012809330600012X)
Borkow, Gadi, and Jeffrey Gabbay. “Copper, an Ancient Remedy Returning to Fight Microbial, Fungal and Viral Infections.” Current Chemical Biology, vol. 3, no. 3, 1 Sept. 2009, pp. 272–278, (https://doi.org/10.2174/2212796810903030272).
Mathews S, Kumar R, Solioz M. Copper Reduction and Contact Killing of Bacteria by Iron Surfaces. Appl Environ Microbiol. 2015 Sep;81(18):6399-403. doi: 10.1128/AEM.01725-15. Epub 2015 Jul 6. PMID: 26150470; PMCID: PMC4542256. - Alexander, James. (2009). History of the Medical Use of Silver. Surgical infections. 10. 289-92. 10.1089/sur.2008.9941.
“Silver: Metal of Many Faces | Dartmouth Toxic Metals.” Sites.dartmouth.edu, (sites.dartmouth.edu/toxmetal/more-metals/silver-metal-of-many-faces/).
Blaskovich, Mark. “Silver Makes Beautiful Bling but It’s Also Good for Keeping the Bacterial Bugs Away.” The Conversation, 11 June 2019, theconversation.com/silver-makes-beautiful-bling-but-its-also-good-for-keeping-the-bacterial-bugs-away-115367. Accessed 8 Jan. 2025.
- Li, Wenyan , et al. Investigation of Silver Biocide as a Disinfection Technology for Spacecraft – an Early Literature Review. 8 July 1018.
Wagner, Jeff. “Reusable Water Bottles Have More Bacteria on Them than Dog Bowls and Toilet Seats, Study Finds.” Cbsnews.com, CBS Minnesota, 10 Sept. 2024, (www.cbsnews.com/minnesota/news/reusable-water-bottle-cleaning/).