How to Make Fermented Rice Water for Hair Growth and Shine
You’ve probably heard the buzz about rice water for hair growth and shine, but the real secret is in the fermentation process. This simple DIY treatment, used for centuries in East Asian cultures, can boost your hair’s strength and luster when done right. In this article, I’ll walk you through the exact method from a trusted source, plus share tips on how to use and store it safely.
Whether you’re dealing with dull strands or just want to give your hair a natural boost, fermented rice water might be worth a try. Let’s get into the step-by-step process and what to expect.

Key Takeaways
- Soak 2 cups of rice in 4 cups of water, then drain and let sit with fresh water for 2 hours.
- Ferment the drained liquid at room temperature for 48 hours in a lightly covered jar.
- Dilute fermented rice water with plain water before applying to hair to avoid stickiness.
- Use the rinse twice a week, leaving it on for 20 minutes before rinsing thoroughly.
- Expect consistent use for several weeks to months before noticing potential benefits.
What is Fermented Rice Water and Why Use It?
Fermented rice water is the starchy liquid left after soaking rice, allowed to ferment for a period. It’s rich in vitamins B and E, amino acids, antioxidants, and inositol, a carbohydrate that can penetrate and repair damaged hair from the inside out. The Yao women of Huangluo Village in China have traditionally used it for hair strength, shine, and growth.
Gather Your Supplies for Making Rice Water

Here’s what you’ll need to make fermented rice water at home.
- Rice: Any type works, but organic or pesticide-free is best to avoid unwanted chemicals.
- Clean water: Tap or filtered is fine.
- Large bowl and strainer: For rinsing and draining the rice.
- Glass jar: For fermenting and storing the liquid.
- Airtight container or spray bottle: For storage and easy application.
Step-by-Step: Making Fermented Rice Water at Home

- Rinse the rice: Add 2 cups of rice to a bowl with 4 cups of water. Gently massage the rice with your hand to remove dirt and excess starch. Drain the water, leaving the wet rice in the bowl.
- Soak for two hours: Add 2 cups of fresh water to the wet rice. Mix it, then let it sit at room temperature for 2 hours.
- Strain and ferment: Drain the liquid into a glass jar. Cover the jar lightly with cheesecloth or a paper towel so it can breathe. Let it ferment at room temperature for 48 hours.
- Refrigerate: After 48 hours, remove the light cover, screw on a lid, and store the fermented rice water in the refrigerator. This slows bacterial growth and preserves its potency.
- Apply to hair: Apply the fermented rice water to clean, wet hair. Leave it on for 20 minutes.
- Rinse thoroughly: Rinse your hair well with water, then dry as usual. Repeat this process twice a week for best results.
If you learn better by watching, this 5-minute video from Dr. Eric Berg DC shows every step. The how-to part starts at 2:51.
The Science Behind Fermented Rice Water’s Benefits
Fermentation increases the concentration of beneficial compounds in rice water, including B vitamins, amino acids, and antioxidants. The process also produces lactic acid, which helps maintain a slightly acidic pH for your hair and scalp, reducing dullness and frizz.
Inositol, a carbohydrate naturally present in rice, is a key component. It can penetrate damaged hair and repair it from the inside out, and it remains in the hair even after rinsing. This makes fermented rice water more effective than the unfermented version.
Pro Tips for Using and Storing Your Rice Water

Dilute Before Use: Always mix fermented rice water with plain water before applying. I usually go with a 1:2 ratio (one part rice water to two parts water) to avoid stickiness and a strong smell while still getting the benefits.
Patch Test First: Test a small section of hair or a spot on your scalp before your first full application. This helps you catch any sensitivity before it becomes a problem.
Storage: Keep unfermented rice water in an airtight container in the fridge for up to a week. For fermented rice water, refrigeration slows bacterial growth and keeps it usable for about a week.
Enhance the Scent: If you ferment longer than 48 hours, the smell can get strong. My tip: add a few drops of spearmint or another essential oil to the jar to offset the odor without affecting the treatment.
Common Mistakes to Avoid When Using Rice Water
Skipping the Rinse: Not rinsing rice thoroughly before soaking leaves impurities and excess starch in the water, making the final product less clean and less effective.
Insufficient Fermentation: Letting rice and water sit for only a couple of hours doesn’t allow proper fermentation. You miss the increased concentration of beneficial compounds that develop during the full 48-hour process.
Over-Fermentation: Leaving fermented rice water at room temperature beyond 48 hours (for the initial batch) risks spoilage and an unpleasant odor. After 48 hours, seal and refrigerate it.
Too Frequent Use: Using rice water every day, especially at the start, can cause protein overload. Hair may become stiff, brittle, or dry instead of stronger.
Undiluted Fermented Water: Applying fermented rice water straight without diluting it often leaves a sticky residue and a strong smell. It can also irritate the scalp, so always mix it with regular water first.
When to Consult a Professional About Hair Concerns
If you notice persistent scalp irritation, excessive dryness, or increased hair breakage after using rice water, stop using it immediately. These reactions may signal sensitivity or protein overload.
Consult a dermatologist or trichologist before starting any DIY treatment if you have existing scalp conditions like dandruff, eczema, or psoriasis, or if your skin is generally sensitive.
Seek professional advice if you see no improvement in your hair concerns after several months of consistent use (once or twice a week). A specialist can help identify underlying issues that rice water alone won’t address.
Expected Timeline and Cost for Rice Water Treatment
Timeline: Don’t expect quick changes. Consistent use 1-2 times a week for several weeks or even months is often needed before you may notice benefits like improved shine or strength.
Preparation Time: Active prep takes only a few minutes, but factor in 48 hours for fermentation and 20 minutes per application. Plan ahead so you have rice water ready when you need it.
Cost: Rice water is very inexpensive. You likely already have rice and water at home. The main investment is your time, not your wallet.
Frequently Asked Questions
How often should I use rice water on my hair?
Start by using it 1-2 times per week, especially when you’re new to the treatment. Using it more often can lead to protein overload, which may make your hair stiff or brittle. Adjust based on how your hair responds.
Can I use any type of rice for rice water?
Yes, any type of rice works, including white, brown, jasmine, or basmati. For the cleanest result, choose organic or pesticide-free rice if possible to avoid unwanted chemicals in your rinse.
What if my fermented rice water smells bad?
A slight sour or tangy smell is normal after fermentation. But if it develops a strong, unpleasant odor or you see visible mold, discard it immediately. To reduce odor, you can add a few drops of essential oil like spearmint during fermentation.
How long does fermented rice water last?
Store fermented rice water in an airtight container in the refrigerator. It will stay good for up to a week. If you ferment it longer than 48 hours, it may develop a stronger smell, but it can still be used if it smells clean.
Can rice water make my hair stiff or dry?
Yes, this can happen if you use rice water too often or don’t dilute it properly. The starch can cause protein overload, leaving hair stiff or brittle. Always dilute with plain water and limit use to 1-2 times per week to avoid this.
Final Thoughts
If you’re looking for a natural way to support hair health, fermented rice water is a low-cost option worth trying. My tip: start with the 48-hour fermentation method from the video and use it twice a week for at least a month before judging results. Be patient, real changes in shine or strength often take consistent use over several weeks, not overnight. For most people, this simple rinse can become a rewarding part of their hair care routine.
This article is for informational purposes only and does not constitute medical or professional advice. Results may vary, and individual reactions to rice water can differ. If you have a scalp condition, sensitive skin, or persistent hair concerns, consult a dermatologist or trichologist before starting any new treatment.