I tested three formulas and there is a favorite.
The demand for hypochlorous acid face mists shows no signs of slowing down. If you’ve somehow missed the enthusiasm surrounding facial sprays that smell faintly of bleach, now’s the time to catch up.
I’ve always viewed face mists as non-essential—nice to have, but far from a skincare necessity. Lately, however, more formulas have been bridging the gap between a refreshing spritz and a functional treatment. Hypochlorous acid mists are a perfect example. But while they certainly do something, they aren’t a universal fix. These sprays target specific skin concerns, primarily sensitivity, acne, and irritation. If those aren’t issues for you, this category might not be a priority. But if they are? Hypochlorous acid is worth considering.
What Is Hypochlorous Acid?
Composed of hydrogen, oxygen, and chlorine, hypochlorous acid (HOCl) is an antimicrobial compound naturally produced by the body to combat bacteria and inflammation. It plays a key role in the immune response, helping to fight infection and accelerate healing. Given its purifying yet gentle properties, it’s no surprise the skincare industry has adapted it for topical use.
How Does It Benefit the Skin?
Applied as a mist, hypochlorous acid works as an anti-inflammatory, antimicrobial, and skin-soothing agent. It’s often recommended for acne, eczema, and psoriasis due to its ability to neutralize bacteria while calming irritation. It also supports wound healing, making it a popular choice for those with compromised skin barriers.
Most skincare formulations contain HOCl at either 150 or 200 parts per million (ppm), which translates to 0.015% or 0.02%.
Important to note: Hypochlorous acid in skincare is not the same as household disinfectants, and attempting to create a DIY version using bleach is not a good idea. Also, avoid spraying HOCl mists directly into your eyes unless the product is specifically formulated for ophthalmic use, such as Twenty/Twenty Beauty’s version, which was developed by an ophthalmologist.
Ways to Use a Hypochlorous Acid Mist
• As a gentle cleanser with a cotton round (similar to micellar water)
• As a soothing toner/essence post-cleansing
• As a purifying face mist after exercise, travel, or mask-wearing
• For tattoo aftercare, hand sanitizing, or as a quick way to refresh your phone screen
Testing Three Hypochlorous Acid Face Mists
I tested three different hypochlorous acid sprays and evaluated them based on texture, absorption, packaging, spray nozzle, and scent. Here’s how they compare.
Tower 28 SOS Daily Rescue Facial Spray
This was the most disappointing of the three. While Tower 28’s minimalist formula (water, sodium chloride, hypochlorous acid) is straightforward and effective, the mist delivery system leaves much to be desired. Instead of a fine, even mist, the spray nozzle releases a harsh, uneven stream that feels more like being splashed than gently refreshed.
The formula itself is gentle and soothing, but the strong bleach-like scent is noticeable. While the HOCl concentration is in line with industry standards (0.015%), the unpleasant application experience makes it difficult to reach for regularly.
Would I repurchase? Only if they improve the nozzle.
• Concentration: 0.015%
• Scent: Strong bleach-like smell
• Texture: Lightweight, absorbs quickly
• Application: Harsh, uneven mist
$28 (120ml) | $12 (30ml travel size) at tower28beauty.com and sephora.com
Mario Badescu Repairing Facial Spray With Hypochlorous Acid
Mario Badescu’s formula, while nearly identical in ingredients to Tower 28, offers a significantly better user experience. The spray nozzle delivers a fine, even mist that distributes product smoothly across the skin. It also contains a slightly higher HOCl concentration (0.02%), which may appeal to those looking for a stronger purifying effect.
The scent is still present but much milder, making it more pleasant to use. It absorbs quickly, leaving no residue. The bottle is compact and convenient for travel, making it a more practical option than Tower 28’s.
Would I repurchase? Yes, especially for travel or everyday use.
• Concentration: 0.02%
• Scent: Faint but present
• Texture: Lightweight, fast-absorbing
• Application: Fine, even mist
$18 (118ml) at mariobadescu.com, ulta.com, and amazon.com
Base Laboratories Hypochlorous Acid Spray
This Amazon find came recommended by a fellow beauty writer, and it delivered on all fronts. The ultra-fine, continuous mist makes application effortless, and unlike the others, this formula includes additional skincare ingredients such as hyaluronic acid, goji berry, chamomile, and rose flower extracts. These additions make it feel more hydrating and skin-conditioning, rather than just a functional purifying mist.
The brand does not list ingredients in traditional order (water is oddly placed last), but the formula performs well. Unlike the previous two, it has no detectable bleach scent, making it a much more enjoyable experience. My only complaint? No travel size. However, Base Laboratories also offers hypochlorous acid wipes, which could be a convenient alternative for on-the-go use.
Would I repurchase? Yes. The best of the three.
• Concentration: 0.02%
• Scent: None
• Texture: Hydrating, absorbs well
• Application: Ultra-fine continuous mist
$16.99 (236ml aerosol can) on amazon.com
Final Thoughts
If you’re considering a hypochlorous acid mist, choosing the right one depends on your specific needs:
• Looking for a travel-friendly option at a reasonable price? Mario Badescu’s version is a solid choice.
• Prefer a formula with extra skincare benefits? Base Laboratories offers the best experience.
• Willing to overlook poor packaging in favor of a minimalist formula? Tower 28 works, but the spray nozzle is a major drawback.
While hypochlorous acid mists provide real benefits, they aren’t universally necessary. If your skin is prone to irritation, breakouts, or inflammation, they can be a great addition to your routine. If not, a well-formulated toner or essence may serve you just as well.
Would you try a hypochlorous acid mist, or do face mists still feel like an optional step in your routine?
