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“It is crazy how much this helps with acne and hormonal skin,” admits TikTok user Kilee Kearns revealing Tower 28’s hypochlorous acid spray. “[And] how this has reduced the redness and breakouts around my jaw.” She continues to explain that she’s obsessed with how well it works as a protective barrier atop her dry, acne-prone skin when she’s wearing a mask, too—making it a thoughtful solution for maskne. Users in Kearns’s comments share similar sentiments: “I have it, and def helps with redness and when skin is flaring up,” writes one. “It’s super versatile, I use it for my itchy scalp as well as my underarms,” writes another. It’s clear the spray has proven effective calming skin, even beyond the face.
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Anyone with sensitive, acne-prone skin understands how difficult it is to find products that easily, quickly pacify skin without further irritation, a hefty price tag, or a trip to the dermatologist. It was this frustration with her sensitive, problem skin that led Amy Liu to start Tower 28 in the first place. “I’ve had severe eczema for most of my adult life, and used to rely on both topical and oral steroids to manage the flare-ups,” Liu tells Vogue. Before launching her brand, a friend recommended she try hypochlorous acid to treat inflammation. “The product she suggested worked wonders on my eczema below the neck, but I was still in search of a formula that was gentle enough for my face as well.”
So, she knew Tower 28 had to feature a facial spray powered by the miracle ingredient—resulting in what we know now as the buzzy SOS Daily Rescue Facial Spray that was pH balanced at 4.5 to keep it gentle and has even earned the National Eczema Association’s seal of approval. “We received incredible testimonials and before-and-afters that proved that our SOS Spray had impressive results on fighting acne, eczema, rosacea, sunburn, and even things like diaper rash on babies,” she recounts.
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What’s more, the spray only contains three ingredients: water, salt, and hypochlorous acid—an ingredient naturally found in the body (white blood cells, to be exact) to combat foreign bodies and bacteria, as well as provide antimicrobial and anti-inflammatory benefits. Per board-certified dermatologist Dr. Marisa Garshick, it’s typically unstable, but this formulation is stable and good for cosmetic use.
“This product is versatile, addressing many different skin-care concerns, is easy to use and safe for all skin types,” says Garshick. “Because it helps to repair the skin, it can be used to treat all skin concerns, strengthen and soothe the skin as it can help to reduce redness and inflammation as well as skin sensitivity.” She explains that its antibacterial properties and spray formula makes it excellent for treating breakouts and post-workout.
With its multipurpose benefits from acne to eczema and irritation, you may wonder if it’s possible to over-use the spray. The good news: not possible. “Because it is gentle on the skin and non-irritating, it is generally safe for routine use,” notes Garshick. She says it’s best to apply after cleansing and before serums or moisturizers though it can be spritzed throughout the day.
While the emergence of cooler temperatures as summer winds down might mean fewer chances for sunburn, keep in mind possible skin irritations that winter brings. Luckily, this can be used year-round. “It offers the convenience of a lightweight spray, it works to soothe the skin and support the skin barrier, which can be especially helpful in the cooler, winter months,” says Garshick.
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Based on all the expert endorsements and many users’ glowing recommendations, this hypochlorous acid spray seems more of a beauty arsenal essential for those with sensitive skin than a social media fad. Consider stocking up ahead of transitional weather or for your end of summer travels—luckily, the spray is available in a convenient travel size, too.