Quick answer: To make rice water for hair, soak 1/2 cup of uncooked rice in 2 to 3 cups of water for 30 minutes, then strain off the cloudy liquid. For stronger results, let it ferment at room temperature for 24 to 48 hours before refrigerating. Use it once or twice a week after shampooing, then rinse out.
I found rice water the way a lot of people do: out of frustration. I was feeling discouraged because I couldn't find a single product that could repair my bleached blonde hair. It was dull, damaged, and breaking. Then I tried rinsing with rice water, and within a few short weeks my hair went from straw to smooth and shiny. The only problem was the process itself. Fermenting rice was tedious for my busy schedule, and the smell was, well, a lot.
So I learned everything there is to know about making rice water at home, and eventually spent two years turning it into something simpler. This guide is the honest version of what I figured out: how to make rice water for hair, how to ferment it (and why that matters), how to actually use it, and the mistakes that quietly waste your time. If you just want the benefits without the jar on your counter, I'll point you to the shortcut at the end.
Does rice water actually work for hair?
Rice water is not a 2023 trend. Dating back to the Heian period in Japan (794 to 1185 AD) and popularized by the Yao women in southern China, who are known for their stunning six-foot lengths of hair, rice water has been used for centuries to strengthen hair and add shine.
The reason is in what soaks out of the rice. Rice water is rich in:
- Inositol and niacinamide, which help nourish and condition the hair.
- Vitamins B and E, which support healthy-looking strands.
- Amino acids like cysteine and methionine, the building blocks that help strengthen the hair shaft and reduce breakage.
In plain terms: rice water helps your hair hold its length by reducing breakage, and it adds slip and shine without heavy buildup. It is a strengthening and shine treatment, not a magic growth serum. The people who see results are the ones who use it consistently, so set your expectations there and you won't be disappointed.
What you'll need
- 1/2 cup of uncooked rice (white, jasmine, or brown all work)
- 2 to 3 cups of water
- A bowl, a strainer, and a clean jar or spray bottle
How to make rice water for hair, step by step
There are two easy methods. Both make plain (unfermented) rice water.
Method 1: The soak (quickest)
- Rinse 1/2 cup of uncooked rice under water once to wash off any surface dirt, then drain.
- Put the rinsed rice in a bowl with 2 to 3 cups of water and let it soak for 30 minutes.
- Swirl it a few times, then strain the cloudy water into a clean jar. That cloudy liquid is your rice water.
Method 2: The boil
- Cook 1/2 cup of rice in about double the water you'd normally use.
- Before the rice fully absorbs it, strain off the leftover cloudy water.
- Let it cool, then dilute with an equal amount of plain water before using, since boiled rice water is more concentrated.
Plain rice water keeps in the fridge for about 24 hours. After that, make a fresh batch.
Fermented rice water: why it works better
If you only take one thing from this post, make it this: most people find fermented rice water more effective than plain. Fermentation lowers the pH of the rice water so it sits closer to the natural pH of your hair and scalp, and it's thought to make the vitamins and antioxidants more available to your strands.
To ferment your rice water, simply leave the strained liquid in a covered jar at room temperature for 24 to 48 hours, until it smells slightly sour. Then move it to the fridge to stop the fermentation. Because it's potent, dilute fermented rice water with an equal part of plain water before it touches your hair.
Here's the honest tradeoff, and the reason I eventually gave up on the DIY version. Fermented rice water smells sour and funky. The timing is finicky: too little and you've made plain rice water, too long and it turns sharply acidic and can leave hair stiff. And it ties you to a two-day cycle of making, fermenting, and using before it spoils. Worth it for some people. For my schedule, it wasn't.
How to use rice water on your hair
- Shampoo and rinse as usual.
- Pour or spray the rice water over your hair and scalp, working it through from roots to ends.
- Massage gently for a few minutes. You can rinse right away, or leave it on for up to 15 to 20 minutes for a stronger treatment, then rinse thoroughly.
- Follow with conditioner, since rice water on its own can feel a little stripping.
How often? Once or twice a week, not every day. Rice water is protein-rich, and too much protein too often can lead to "protein overload," which leaves hair stiff and brittle instead of soft. If your hair starts feeling straw-like, scale back. Consistency beats intensity here.
Common mistakes to avoid
- Using it every day. More is not better. Stick to once or twice a week.
- Leaving it on too long. Past 20 minutes you're not gaining much, and you raise the risk of that stiff, over-proteined feeling.
- Skipping the dilution on fermented batches. Concentrated fermented rice water is too acidic to use straight.
- Expecting overnight results. Give it a few weeks of regular use before you judge it.
The shortcut: ready-made rice water, no fermenting jar required
This is the exact problem I built Oriza to solve. After two years of developing the perfect solution, I made a way to get all the benefits of rice water in a simple, convenient form, without the smell, the guesswork, or the two-day wait.
Our Rice Water Shampoo and Conditioner are infused with rice water and made in small batches in the USA, so you get the strengthening and shine benefits as part of a normal shower, not a weekend science project. If you want the full routine, The Ritual Set adds our Halo Oil to seal in shine. You can read more about how Oriza started on our story page.
Whether you make it at home or reach for a bottle, rice water is one of the oldest, simplest things you can do for stronger, shinier hair. I hope this helped.
Want the full picture? See our complete guide to rice water for hair.
— Betsy & the Oriza Team
Frequently asked questions
How long should I leave rice water in my hair?
A few minutes is enough for a light rinse. For a stronger treatment, leave it on for up to 15 to 20 minutes, then rinse thoroughly. Longer than that doesn't add much benefit.
How often should I use rice water on my hair?
Once or twice a week. Rice water is protein-rich, and daily use can cause protein buildup that leaves hair stiff and brittle.
Is fermented or plain rice water better?
Most people find fermented rice water more effective, because fermentation lowers its pH closer to your hair's natural pH and is thought to make its nutrients more available. Just remember to dilute it before use.
Can rice water damage your hair?
Used in moderation, no. The main risk is overuse leading to protein overload, which makes hair feel dry and brittle. Stick to once or twice a week and always follow with conditioner.
How long does homemade rice water last?
Plain rice water keeps about 24 hours in the fridge. Fermented rice water lasts a few days refrigerated, and the smell will tell you when it's past its prime.