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Pakistan

Colgate laboratory tests show toothpaste and mouthwash inactivate 99.9% of the virus that causes COVID-19

Clinical research program underway to validate potential of oral health products to slow spread of the virus.
Published November 24, 2020

Laboratory studies show that toothpastes containing zinc or stannous and mouthwash formulas with cetylpyridinium chloride (CPC) neutralize the virus that causes COVID-19 by 99.9%. The studies are part of a Colgate research program that includes clinical studies among infected people to assess the efficacy of oral care products in reducing the amount of the virus in the mouth, potentially slowing the transmission of the COVID-19 virus.

In the laboratory studies – the first to include toothpaste – Colgate Total and Meridol toothpaste neutralized 99.9% of the virus after two minutes of contact. Colgate Plax, Colgate Total and Colgate Zero mouthwashes were similarly effective after 30 seconds. The studies, completed in October, were conducted in partnership with Rutgers University’s Public Health Research Institute and Regional Biosafety Laboratories.

The results suggest that some toothpastes and mouthwashes may help reduce the spread of SARS-CoV-2, the virus that causes COVID-19, by temporarily reducing the amount of virus in the mouth. The virus spreads through respiratory droplets or small particles produced when an infected person coughs, sneezes, sings, talks or breathes, according to the U.S. Centers for Disease Control and Prevention.

“While brushing and rinsing are not a treatment or a way to fully protect an individual from infection, they may help to reduce transmission and slow the spread of the virus, supplementing the benefit we get from wearing masks, social distancing and frequent hand washing,” said Dr. Maria Ryan, Colgate’s Chief Clinical Officer. “We’re at the early stages of our clinical investigations, but our preliminary laboratory and clinical results are very promising.”

Said Dr. David Alland, Chief of Infectious Diseases and Director of the Center for COVID-19 Response and Pandemic Preparedness, who led the Rutgers study along with colleagues Drs. Pradeep Kumar and Riccardo Russo: “While we do not yet know the contribution of SARS CoV2 virus originating from the mouth to COVID-19 transmission, saliva certainly can contain amounts of virus that are comparable to that found in the nose and throat. This suggests that reducing virus in the mouth could help prevent transmission during the time that oral care products are active.”

Concurrent to the laboratory study, a Colgate-sponsored clinical study involving some 50 hospitalized subjects with COVID-19 was conducted at the Albert Einstein Institute in Sao Paulo, Brazil. This study demonstrated the ability of certain Colgate mouthwashes to substantially reduce the amount of the virus in the mouth temporarily. The researchers plan to share their findings in early December. Additional Colgate-supported clinical research studies on toothpaste and mouthwashes are in early stages at Rutgers, the Einstein Institute, and at the University of North Carolina Adams School of Dentistry, with some 260 people with COVID-19 participating in these studies.

“Colgate is collaborating with numerous investigators throughout the globe to conduct clinical research to explore the potential of oral care products to reduce oral viral loads as a risk reduction strategy,” Dr. Ryan said. “We think oral care has a role to play in fighting the global pandemic, alongside other preventive measures.”

As the world’s #1 trusted dental expert, Colgate is committed to leading in science and to ensuring that its products address health challenges and meet consumers’ needs. For more information about the effects of oral hygiene on overall health and additional insights on mask mouth and other topics, visit www.colgate.com .

About Colgate-Palmolive:

Colgate-Palmolive Company is a caring, innovative growth company reimagining a healthier future for all people, their pets and our planet. Focused on Oral Care, Personal Care, Home Care and Pet Nutrition and reaching more than 200 countries and territories, Colgate teams are developing and selling health and hygiene products and pet nutrition offerings essential to society through brands such as Colgate, Palmolive, elmex, meridol, Tom’s of Maine, hello, Sorriso, Speed Stick, Softsoap, Irish Spring, Protex, Sanex, Filorga, eltaMD, PCA Skin, Ajax, Axion, Fabuloso, Soupline, Suavitel, Softlan, Lemon Max, Brite, Express Power, Bonus as well as Hill’s Science Diet and Hill’s Prescription Diet. Colgate seeks to deliver sustainable, profitable growth and superior shareholder returns and to provide Colgate people with an innovative and inclusive work environment. Colgate does this by developing and selling products globally that make people’s lives healthier and more enjoyable and by embracing its sustainability, diversity, equity and inclusion and social responsibility strategies across the organization. For more information about Colgate’s business, its efforts to improve the oral health of children through its Bright Smiles, Bright Futures program and how the Company is building a future to smile about, visit www.colgate.com.pk

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