Hypochlorous Acid Spray, the Cleaning Chemistry That Moved to Skincare

Hypochlorous acid is something your own white blood cells make to fight off bacteria, and wound care has used it for years because it does the job without the sting of alcohol. Skincare borrowed it once people wanted a step calmer than a toner that still did more than water. You spray it on clean skin before anything else goes on. The one thing to know up front is that it breaks down with light and time, so a bottle that has been open on a sunny windowsill since spring is doing a lot less than a fresh one.

Above, the plain daily mists sit next to Tower 28's serum, which puts the same acid into a thicker texture that stays on red patches instead of evaporating. The next group is sorted by intent. Personal Day and Nemah are everyday sprays for skin that flares easily. Topicals adds salicylic and glycolic acid, which turns it into a breakout treatment rather than a soothing mist, so use it where you need it instead of all over by default. The Tower 28 moisturizer is here because every mist needs something on top.

This is a genuinely gentle category, and the calming claims mostly hold up because the chemistry is so close to what skin already handles every day. What it gets oversold on is replacing a real routine, since a mist will not clear active acne or rebuild a damaged barrier on its own. If you take one thing away, keep the bottle out of direct light, use it within the window printed on the label, and spray before moisturizer so it is not trapped under a heavier layer. If you want to keep browsing, I also put together TULA Skincare, the Gastroenterologist's Brand Named for Balance and Skincare Became A Belief System.