We Ask a Derm: What Is Hypochlorous Acid (and Is It Safe to Use on Your Skin)?

There’s hyaluronic acid, salicylic acid and even polyglutamic acid. But the ingredient I’ve noticed garnering the most attention on social media lately is hypochlorous acid. Said to destroy bacteria, clear infections and germs, it’s an ingredient that’s commonly found in cleaning supplies. So how did it make its way into our skincare products? I tapped a few dermatologists to find out more about hypochlorous acid and whether it’s really safe to use on our skin. Here’s what I uncovered.

Meet the Experts

What Is Hypochlorous Acid?

Hypochlorous acid (HOCI) is actually found in our bodies, specifically in our white blood cells to help fight off bacteria and infection. As Dr. Garshick explains, “Hypochlorous acid is made up of hydrogen, oxygen and chloride, which offers antimicrobial and anti-inflammatory benefits. Although historically unstable, [newer] formulations [specifically for skincare] have been developed to be stable and good for cosmetic use.”

What Is Hypochlorous Acid Used For?

It’s commonly used in cleaning supplies such as bleach, disinfectant wipes and pool cleaners. According to the United States Environmental Protection Agency, it's also a great ingredient for disinfecting surface areas to prevent the spread of COVID-19. But most recently, chemists have found a place for it in our skincare products, including facial sprays, cleansers and serums.

Is Hypochlorous Acid Safe to Use on Skin?

According to the experts, hypochlorous acid is safe to use on your skin. While it may sound like it can be too harsh and potentially drying, HOCI found in skincare products is typically gentler and non-irritating, as a lower concentration of the ingredient is used to get the job done. However, Dr. Ibrahim warns people against trying to create their own hypochlorous acid at home. “Please do not dilute hypochlorous acid-based disinfectants to use on your skin. When it comes to hypochlorous acid, concentration is very important. Those used in disinfectant sprays are not formulated to be safe for skin and can in fact cause severe irritation,” he warns.

What Does Hypochlorous Acid Do for Your Skin?

When you pick up a product that’s already formulated with a safe level of hypochlorous acid in it, it can be great for your skin. Here are four key benefits of using HOCI in your routine.

Are There Any Side Effects to Using Hypochlorous Acid?

Although the derms deem the ingredient is safe in most cases, some people may still be allergic to it. As always, do a patch test to make sure you don’t experience any irritation or redness before adding HOCI to your routine.

Who Should Use Hypochlorous Acid?

Hypochlorous acid works for all skin types, but is especially good for those with sensitive and/or acne-prone skin. “Since it offers antibacterial and anti-inflammatory properties, it doesn’t irritate the skin. It can also be appealing for those with acne-prone skin who can’t tolerate [skincare ingredients like] benzoyl peroxide or salicylic acid,” says Dr. Garshick.

How Should You Use Hypochlorous Acid?

The best way to use hypochlorous acid is through a facial spray. It will absorb quickly and is the easiest, most hygienic way to apply on the skin. A spray is also great to take on the go, especially after an intense workout. At home, you can spray hypochlorous acid right after cleansing your face, one to two times a day, either in the morning or at night.

Bottom Line

Hypochlorous acid can be an all-star skincare staple for many. It works to clear up acne, soothe inflamed skin, calm irritation and speed up the wound healing process. If you’re looking for a way to implement it into your routine, consider adding a facial spray into the mix. I've linked to a few favorites below.

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Shop Facial Sprays

Tower 28 Beauty

SOS Daily Rescue Facial Spray

https://go.skimresources.com/?id=27667X859343&url=https%3A%2F%2Fwww.sephora.com%2Fproduct%2Fsos-save-our-skin-daily-rescue-facial-spray-P448852&xcust=hypochlorous_spray

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SkinSmart

Facial Cleanser Spray

https://www.amazon.com/SkinSmart-Cleanser-Bacteria-Athletes-Multiple/dp/B07VRFC3Y7?&linkCode=ll1&tag=pur0e4-20&linkId=aea9c9838f0898ae3af866df09139a70&language=en_US&ref_=as_li_ss_tl

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Mario Badescu

Repairing Facial Spray

https://howl.me/cmPkQsmCblw

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