A new study suggests that people who rely on detergent and other detergents to clean their hands should be aware that their skin may react to them.
Dr. Roberta Ritter, a professor at the University of California, Davis, and the lead author of the study, said she has seen the reaction on the skin when people wash their hands, and she has wondered what might happen if the product is sprayed onto the skin.
“I wanted to see if we can predict whether a product that’s sprayed on the body will actually cause any adverse reactions,” she said.
“We’re seeing some pretty strong reactions in people.”
Her research focused on the products made by three companies: Ecolab, a Canadian company; Gilt, a U.S. company; and PureClean, a Chinese company.
She and her team collected more than 10,000 samples from people who had recently been sprayed with detergent, and looked at how they reacted to the chemicals.
People who used products made from these companies reported that their hands became sensitive, including soreness and redness, but they did not report any other skin reactions.
Some people said their hands felt like they were being rubbed by an oil slick.
Others reported they had dry, rough skin, itching, or redness around the hands, as well as a rash.
Other people reported that after washing their hands with a dishwashing liquid, their hands didn’t smell bad, but the scent did linger on their hands.
The findings were published in the journal Skin Pharmacology and Therapeutics.
People reported that washing with detergent produced a mild, short-lasting rash.
“It seems to be a combination of these two products that causes this reaction,” Dr. Ritter said.
Dr Ritter and her colleagues also examined how skin reacted to a product made by the Canadian company Ecolabs.
The product contains an ingredient called a surfactant, which is often used to protect products from getting wet and then to reduce the amount of water in a product.
When it was sprayed on their skin, the product caused skin to feel a bit sticky, she said, but there were no other signs of irritation.
People also reported that it made them feel like they had been brushed by a brush, and they also said that after they had washed their hands and put on their gloves, they had a rash around their fingers and toes.
When Dr. Marni Kosslyn, a dermatologist at the Johns Hopkins University School of Medicine, tested skin samples from more than 100 people in the U.K., she found that the product made skin feel dry, hard, and greasy, and that it caused an “enlarged, dry spot.”
Skin that was not treated with a surfacant did not have an enlarged, dry patch, and people who washed their skin with soap after using the product reported that they did so with a similar rash.
Dr Kossylyn said she is interested in the possibility that people might have allergies to these ingredients because they might react to other products made with them.
“The products might be causing skin irritation, but we don’t know whether they are causing allergic reactions,” Dr Koslyn said.
If the skin reaction is caused by a surfactic ingredient, then there is no specific treatment for the skin, Dr. Kossyn said.
The study was based on a survey of more than 1,000 people, but Dr. Zoltan Zorich, an allergist at Johns Hopkins and the study’s lead author, said that his research team was able to test more than 500 products to see whether they had ingredients that could cause allergic responses.
One product, a laundry detergency, contains a surfaccurate that can cause irritation and allergic reactions.
“These are products that are not meant for people with sensitivities, which means there’s no specific therapy,” Dr Zorinich said.
While Dr. Jurgen Wiedermann, a physician at the Kaiser Permanente Center for the Study of Chronic Diseases in Seattle, has studied the possible link between detergent products and skin reactions, he said he was not aware of any studies that looked at the skin response to these detergences.
Dr Wiedermann said that the products were used for years, and had little effect on the results.
The products are not available in the United States and, because they are manufactured in China, there is not an accurate test for the product.
Dr Jurgensons study did not address how detergens may react with people’s own bodies, although he said that a study done in Sweden showed that detergented products may trigger allergies in some people.
Dr Zorenich said he does not know how long the product may remain in people’s bodies, or whether it is safe for people to use them.
He said he hopes that the study will encourage consumers to wash their clothes and other