Ultrasonic cleaners may have no effect on the growth of hair, according to a new study.
The study, published in the Journal of Cosmetic Science, found that some hair-growing devices were not as effective as previously thought.
Researchers from the University of Exeter in the United Kingdom and the University at Albany in New York found that the ultrasonic cleaning products did not increase hair growth or reduce the amount of resin beads that the hairs had to use to grow.
The results of the study are important for the growth industry because they will be used to guide the growth practices of many other industries, said lead author Dr. Anna Wiedmann, of the University’s Department of Chemistry.
In the study, participants wore the same types of hair-forming hair growth devices for four months.
Then, they were told they were to rinse their hair with water twice a day.
The researchers then measured the levels of three proteins called fibronectin, a protein that helps cells make hair, and keratin, which protects hair cells from damage from chemicals.
Fibronectil levels increased from 10 milligrams per milliliter (mg/mL) to 22 mg/mL, while keratin levels decreased from 4 mg/L to 2 mg/dL.
These changes were not seen in hair-like growth products.
The research suggests that the scalp and scalp hair are not the only parts of the body that respond to certain products, said Dr. Joseph J. Mascarenhas, professor of cosmetic surgery at the University and a co-author of the paper.
“The hair on the body has to be kept healthy,” he said.
“It’s not that hair doesn’t grow naturally, it just takes a lot of work to maintain that.”
There are products that are more effective for a certain amount of hair than others, but they don’t work for every person.
“Dr. Mescarenhas said the results of this study could help other researchers improve their treatments.
For example, he said, it could be helpful for researchers to use different products to see how effective each is at helping their hair grow.