If you’ve been scrolling through TikTok or Instagram lately, you might have noticed tons of skincare influencers raving about hypochlorous acid. It’s popping up everywhere — in sprays, creams, serums — promising to calm redness, soothe irritation, and help with acne, eczema, and rosacea. But what’s the real story behind this trending ingredient?
It’s Not Just a New Trend — It’s Been Around for Ages
Surprise! Hypochlorous acid isn’t some brand-new invention. In fact, doctors have been using it for over 100 years, mainly for cleaning wounds and killing germs. It’s been quietly working behind the scenes, and only now is it getting its skincare moment in the spotlight.
Dr. Raman Madan, a dermatologist from New York, explains that while social media has made it popular, people have been using it in their skin routines for more than a decade. And scientists have known about its benefits for much longer.
What Makes Hypochlorous Acid Special?
Unlike harsh antiseptics like alcohol, which can sting or irritate your skin, hypochlorous acid is gentle. Dr. Shilpi Khetarpal from Cleveland Clinic says it’s so mild, it’s even used to prep skin before injections without causing pain or burning.
It’s also a powerful germ-fighter. Hypochlorous acid targets a wide range of bacteria — from the usual suspects that cause acne and eczema flare-ups to more stubborn strains that alcohol might miss. That means it not only helps keep your skin clean but can reduce the bacteria that make those annoying skin problems worse.
How Does It Work on Your Skin?
Think of hypochlorous acid as a calming superhero for irritated skin. It helps neutralize inflammation and gently oxidizes harmful bacteria. So if your skin feels red, inflamed, or sensitive — especially with conditions like acne or rosacea — adding hypochlorous acid can soothe and calm it down.
It’s not a miracle cure, but it can be a helpful part of your daily routine, especially if you struggle with skin that flares up often.
How Should You Use It?
A quick spritz after a sweaty workout? Yes, please! That’s actually a great time to use it because warm, sweaty skin is a breeding ground for bacteria. Just remember — like any good thing, don’t overdo it. Using hypochlorous acid too often can wipe out the good bacteria your skin needs. So sticking to a few times a day is the sweet spot.
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