Everything You Didn’t Know About Hypochlorous Acid in Skincare

Like hyaluronic acid and ceramides, SOS Daily Rescue Spray’s star ingredient, hypochlorous acid is made naturally by your skin.

Let’s Talk About Hypochlorous Acid (also known as HOCL)

Never heard of it? Well, your body has —when your immune system attacks an infection, hypochlorous acid is the antimicrobial + anti-inflammatory white blood cells create to kill it and bring down inflammation.

It can be replicated with water, salt, and a little electricity (+ a healthy dose of science!).

And it’s very well-studied with lots of proven benefits as an over-the-counter topical. Unlike prescription antibiotics, you can’t develop resistance or allergy. It has similar bacteria-killing abilities as hydrogen peroxide but none of the drawbacks, because it feels right at home in the body. It’s safe for sensitive skin and actually has no effect on the good bacteria. (Cool, huh?)

Hypocholorous acid has been shown to help kill a specific type of staph bacteria commonly associated with eczema.

Hypochlorous acid is the hero ingredient in our SOS Daily Rescue Facial Spray, which even has a National Eczema Association Seal of Acceptance.

At higher concentrations, HOCL can be used as an alternative to cleaning products or hand sanitizer—but hypochlorous acid skincare is helpful for managing breakouts, redness, rashes, and healing scrapes. Dermatologists love it for its potent benefits yet gentle application.

How To Incorporate Hypochlorous Acid In Your Skincare Routine

Our Tower 28 Beauty SOS Daily Rescue Hypochlorous Acid Skincare Spray is easy to apply wherever your skin needs it. As part of a daily skincare routine, spray it on clean skin (before other actives), wait for it to dry down, and then apply whatever you like to use next. (Serum? Moisturizer? SPF? All fair game!)

SOS can be used as a refreshing mist on top of your skincare throughout the day, too —especially helpful if you work out in the afternoon (as a bacne treatment or prevention!) or wear a protective face mask all day at work (as a preventative maskne treatment!). Though it doesn’t replace washing, you can reapply SOS Daily Rescue Facial Spray to help keep bacteria that contributes to breakouts at bay.

Shop our Hypochlorous Acid Skincare Spray starting at $12.