Social media is filled with people spraying it on their faces, bedding, counters, and pet blankets. They claim it can address skin issues such as acne and disinfect surfaces.
Is the excitement justified? Medical experts believe there’s merit to it.
Hypochlorous acid, or HOCl, is a mild acid that occurs naturally in the body. It is also a component in numerous skincare mists and household cleaners.
According to Dr. Howard Sobel, a cosmetic dermatologic surgeon at Lenox Hill Hospital in New York City, HOCl’s antibacterial and anti-inflammatory qualities allow it to combat germs, soothe skin, and aid wound care without causing irritation. “It’s potent yet gentle.”
Here is essential information about hypochlorous acid, its advantages, and the proper methods and times for its application.
What is hypochlorous acid?
Dr. Marisa Garshick, a New York City dermatologist, explains that your white blood cells generate hypochlorous acid naturally as an immune response to bacteria and pathogens.
However, HOCl is also synthetically produced. Scientists create it through electrolysis of saltwater solutions, as noted by the . It is now widely manufactured and incorporated into skincare items like sprays and serums, along with disinfecting products.
“It is a potent antimicrobial that can eliminate bacteria, viruses, and fungi, and it possesses anti-inflammatory traits,” Garshick states. “Its effective but mild profile has led to its use in diverse medical and skincare contexts, such as wound management, sanitizing, and addressing skin disorders.”
Dr. Brintha Vasagar, a family physician in Milwaukee, Wisconsin, adds that despite its current popularity, HOCl has been a safe disinfectant and skin remedy for over 100 years. It also drew notice several years ago for its surface-sanitizing capabilities.
Being a weak acid, it can destroy bacteria and viruses and reduce inflammation without skin irritation. Vasagar notes it is also a secure option for lightly disinfecting surfaces and household objects.
The skincare benefits of hypochlorous acid
Garshick says its antimicrobial and anti-inflammatory actions remove bacteria, viruses, and fungi from the skin, which can clear infections and help manage acne and eczema.
“Simultaneously, it soothes irritation, diminishes redness, and assists in restoring the skin’s protective barrier,” she clarifies. “This combined effect is crucial as it fosters a balanced skin environment that promotes general skin health and recovery without inducing irritation.”
She recommends using HOCl after exercise to clean the skin and reduce inflammation from sweat or rubbing, or incorporating it into a regular skincare regimen.
Sobel notes the acid addresses skin problems without harming the skin barrier. Garshick adds that its mild character makes it frequently suitable for individuals with sensitive skin.
“It is particularly beneficial for those who cannot endure conventional acne therapies, have inflammatory skin diseases, require assistance with wound healing, or desire a straightforward, efficient product for sensitive skin,” she remarks.
Are there other benefits?
Beyond skincare, Vasagar mentions HOCl can be utilized for simple wound management and surface disinfection.
Garshick states the acid can accelerate wound recovery and mend skin damage while remaining gentle. She also advises its use for burns and insect bites.
Minor indicate HOCl can eradicate bacteria and viruses on surfaces, and Vasagar points out it is safer for skin and around pets and kids compared to harsher agents like bleach. A 2007 also implies HOCl can eliminate certain bacteria faster than bleach.
As a disinfectant, HOCl can be applied to surfaces, objects, and fabrics.
Are there any downsides to hypochlorous acid?
Garshick says HOCl is safe and generally well-accepted by most individuals. Nevertheless, she advises prudence with any new product.
Vasagar mentions some people might experience an allergic response and suggests patch-testing on a small skin area before broader use. High concentrations of HOCl or formulas containing fragrance or other additives could cause skin irritation.
Sobel adds that the acid may be drying for some skin types, and a mild tingling sensation upon application is possible for certain users.
How to use hypochlorous acid
Garshick advises applying HOCl after washing your face but prior to serums or moisturizers. Mist it onto clean skin and allow it to dry before following with other products. For liquid forms, gently pat it on with a cotton pad.
“Sprays are popular as they offer a simple and portable solution,” she says. “You can use it during the day over makeup, after exercising, or whenever necessary.”
For the majority, HOCl is “safe for daily use. It is non-irritating and suitable for all skin types, even sensitive skin,” Garshick continues. Sobel recommends beginning with once or twice weekly, then gradually building up to two or three times daily as your skin adjusts.
Sobel also suggests selecting HOCl products without extra components like alcohol or scents, which can be aggravating, particularly for sensitive skin. Studies indicate formulas with a low concentration (0.01% to 0.02%) and a pH ranging from 4 to 6 work best.
“Hypochlorous acid can be a beneficial supplement for soothing inflammation, cutting down acne-causing bacteria, and aiding skin repair, but selecting a carefully crafted product is essential to reap these rewards,” Garshick concludes.
