Rice water shows some promise for acne-prone skin, but the evidence is limited and mostly indirect. It contains compounds that may reduce oil production and fight bacteria, two key drivers of breakouts. However, no large clinical trials have tested rice water specifically as an acne treatment, so it’s best thought of as a gentle complementary step rather than a replacement for proven acne ingredients.
Why Rice Water Might Help With Breakouts
The case for rice water and acne centers on a few key compounds. The most notable is inositol, a carbohydrate naturally present in rice. Dermatologist Dr. Murphy-Rose has noted that inositol “may provide anti-androgenic effects,” meaning it could help counteract the hormonal signals that ramp up oil production in your skin. Since excess sebum is one of the primary triggers for clogged pores and acne, anything that dials it back is worth paying attention to.
Rice water also contains phenolic compounds that act as antioxidants. These compounds can scavenge free radicals and inhibit enzymes involved in skin damage. In lab testing, rice water made by boiling rice showed antioxidant activity comparable to vitamin C. That doesn’t mean splashing it on your face delivers the same punch as a vitamin C serum, but it does suggest the liquid isn’t nutritionally empty.
There’s also some antibacterial potential. The bacteria that colonize clogged pores and trigger inflammatory acne could theoretically be affected by rice water’s slightly acidic environment and its bioactive compounds. But “theoretically” is doing a lot of work in that sentence. Most of this evidence comes from in vitro studies (tests in a lab dish), not from controlled trials on human skin with active breakouts.
What Rice Water Won’t Do
Rice water is not a substitute for established acne treatments like benzoyl peroxide, salicylic acid, or retinoids. These ingredients have decades of clinical research behind them, with well-understood mechanisms for unclogging pores, killing acne-causing bacteria, and regulating skin cell turnover. Rice water has none of that depth of evidence.
If you have moderate to severe acne, especially cystic or hormonal acne that leaves scars, rice water alone is unlikely to make a meaningful difference. It’s better suited as a gentle toner or rinse for people with mild breakouts or oily skin who want to add a low-risk step to their routine.
How to Prepare and Use It Safely
There are two common methods: soaking and boiling. For the soaking method, rinse half a cup of rice to remove any dirt, then let it sit in about two cups of water for 15 to 30 minutes. Strain the cloudy liquid into a clean container. For the boiling method, cook rice with extra water and collect the starchy liquid that remains. The boiled version tends to be more concentrated in bioactive compounds, and in testing it showed stronger antioxidant and enzyme-inhibiting activity than the soaking version.
To apply it, use a cotton pad or splash it directly onto clean skin. Let it sit for 10 to 15 minutes, then rinse with cool water. Two to three times per week is a reasonable frequency. Using it daily isn’t necessarily harmful, but more frequent application increases the chance of irritation without a clear benefit.
Fermented Rice Water
Some people let rice water sit at room temperature for a day or two to ferment, which increases its acidity and concentration of certain byproducts. Fermented rice water has a long history in East Asian skincare traditions, but it also carries a higher risk of bacterial contamination. If the smell turns foul or the liquid becomes slimy, discard it. The line between “fermented” and “spoiled” can be thin, and applying bacteria-laden liquid to acne-prone skin is counterproductive.
Storage and Contamination Risks
Rice is a well-known growth medium for bacteria, particularly Bacillus cereus, a spore-forming organism that thrives in starchy environments. Research on cooked rice stored at room temperature found significant bacterial growth within 24 hours. Even refrigerated at 4°C (about 39°F), bacterial populations can climb over the course of a week.
For skin use, make fresh rice water every few days and store it in the refrigerator. Discard anything older than three to four days. If you’re applying it to skin that already has open or inflamed acne lesions, the risk of introducing bacteria is real. Using a clean container and clean hands or a fresh cotton pad matters more than it might seem.
Who Should Skip It
Most people tolerate rice water without issues, but there are exceptions. Anyone with a rice allergy should avoid it entirely. Some people find that the slightly acidic pH causes redness or dryness, particularly those with sensitive or eczema-prone skin. Dr. Murphy-Rose recommends watching for these signs after first use and discontinuing if they appear.
People with active, inflamed acne should be cautious about layering on any homemade preparation. The risk of irritation or contamination can outweigh the modest potential benefits, especially when proven over-the-counter options are available. If your skin is relatively calm and you’re looking for a gentle, low-cost addition to your routine, rice water is a reasonable experiment. Just don’t expect it to replace the heavy hitters in your acne arsenal.