Why Synthetic Braiding Hair Itches — and How Plant-Based Banana Fiber Hair Helps
Synthetic braiding hair is made from plastic fibers such as modacrylic (including the Kanekalon brand), PVC or polyester, and many brands are coated with an alkaline finish during manufacturing. That coating, the plastic fiber itself, and chemical residues are widely blamed for the itching, redness and bumps many people feel after installing braids. Tension, product build-up and dry scalp add to it. Plant-based braiding hair made from banana fiber is a newer, plastic-free alternative designed to avoid those coatings and biodegrade at the end of its life.
Last updated: October 2026 · General information, not medical advice
For millions of women, braids, twists and locs are both protective styling and culture. But ask almost anyone who wears synthetic braiding hair and you will hear about the itch — sometimes mild for the first few days, sometimes bad enough to take the braids out early. This article explains what is behind it, what independent testing has found, and why plant-based fibers like banana are attracting interest from stylists, brands and wearers.
What Is Synthetic Braiding Hair Made Of?
Most pre-stretched and bulk braiding hair sold today is synthetic. The main fibers are:
- Modacrylic — the best-known brand is Kanekalon, made by the Japanese company Kaneka. It is soft, has a natural-looking texture and can be sealed with hot water.
- PVC (polyvinyl chloride) and polyester blends — cheaper fibers used in many budget brands.
All of these are plastics. They do not biodegrade, and they are designed to be heat-styled. To make them easier to handle and less likely to tangle during manufacturing, many products are treated with surface coatings. For a full comparison of fibers, read banana fiber vs synthetic braiding hair (Kanekalon).
Why Synthetic Braids Itch: Five Common Causes
1. Alkaline coating
Many synthetic fibers are coated with an alkaline finish. Against the scalp it can cause irritation, which is why many braiders rinse hair in diluted apple cider vinegar before installing.
2. Chemical residues
Residual chemicals from manufacturing may irritate sensitive skin. Independent testing has found concerning chemicals in synthetic hair (see below).
3. Tension
Braids installed too tightly pull on follicles, causing tenderness, bumps and itch — and over time, traction hair loss.
4. Build-up and dryness
Sweat, oils and product build up under braids. A dry scalp, or skin conditions such as seborrheic dermatitis, can also flare.
A fifth cause is allergy. Some people develop allergic contact dermatitis to components in synthetic hair or in the products used with it. That needs a dermatologist's diagnosis, not a home remedy.
What Testing Found Inside Synthetic Braiding Hair
In February 2025, Consumer Reports published lab tests of two samples each from 10 popular synthetic braiding hair brands. Its findings:
Consumer Reports found carcinogens in every synthetic braiding hair sample it tested (2025)
Source: Consumer Reports, February 27, 2025. CR also tested for 65 volatile organic compounds, which were found in all products when heated to 212°F (100°C).
Consumer Reports' testing measured what was present in the hair; it did not measure how much reached wearers' bodies. But the findings sharpened a conversation that wearers and stylists had been having for years about what is in the hair they put on their heads for weeks at a time — and often dip in boiling water to seal.
How to Reduce Itching With Synthetic Braids
- Pre-rinse the hair. Many stylists soak synthetic hair in warm water with apple cider vinegar for 15–30 minutes, rinse, and let it dry fully before installing, to remove some of the coating.
- Ask for looser braids, especially around the hairline.
- Keep your scalp clean. Cleanse gently every one to two weeks with a diluted shampoo or a scalp cleanser, and dry thoroughly.
- Moisturize lightly with a non-greasy scalp product.
- Do not scratch with nails; tap or press instead to avoid broken skin.
- Take braids out if you see a rash, blisters, swelling or oozing, and see a dermatologist.
Plant-Based Braiding Hair: The Banana Fiber Alternative
Over the past few years, brands have started making braiding hair from plant fibers instead of plastic. The best known is Rebundle, founded in the United States by Ciara Imani May after her own scalp reaction to synthetic extensions. According to Beauty Independent, her team tested several fibers before choosing banana fiber, and the brand estimates that one in three women experience irritation from plastic synthetic hair.
Why banana fiber? It is a strong cellulose fiber with long natural staple length, it can be softened, combed and dyed, and it biodegrades. It also comes from banana stems that farmers cut down after every harvest, so it needs no extra land. Our article on plant-based braiding hair trends covers the market.
| Feature | Synthetic (modacrylic/PVC) | Plant-based banana fiber |
|---|---|---|
| Material | Plastic | Cellulose plant fiber |
| Surface coating | Often alkaline-coated | Not required; processing varies by brand |
| Heat sealing | Yes, with hot water | Behaves differently; follow brand guidance |
| Biodegradable | No | Yes |
| Source | Petrochemicals | Banana farm waste |
Long, combed banana fiber — the raw material used by plant-based hair brands. See combed banana fiber.
How Banana Fiber Becomes Braiding Hair
Turning stiff raw banana fiber into soft, braidable hair takes careful processing: selecting long, fine fiber; combing out short strands and tangles; softening to reduce stiffness; dyeing to match hair colors; and finishing for texture and tangle resistance. We explain the steps in how banana fiber is processed into hair-extension-ready fiber and can banana fiber be dyed for hair extensions?
The Natural Fiber Company supplies the raw material: long combed banana fiber and raw banana fiber from Sindh, Pakistan, for hair-extension brands and manufacturers to process into finished hair. If you are building a brand, read how to start a plant-based braiding hair brand.
The Bigger Picture: Plastic Hair Waste
Itching is the personal problem. Waste is the collective one. Synthetic braids are worn for weeks, then cut out and thrown away. Rebundle has cited an estimate of 30 million pounds of synthetic hair ending up in US landfills each year. We look at the environmental side in biodegradable braiding hair and the cost of synthetic braids.
Choosing Braiding Hair if You Have a Sensitive Scalp
- Read the label. Look for the fiber type (modacrylic, PVC, polyester, human hair or plant fiber) and any notes on coatings.
- Patch-test new hair. Rub a small piece on your inner forearm or behind the ear and leave it for a day to see if there is any reaction.
- Pre-rinse synthetic hair even if the pack says it is "pre-treated".
- Consider plant-based options for at least part of your style, such as the hairline, where irritation is often worst.
- Choose lighter styles with fewer, looser braids to reduce tension and weight.
Questions to Ask Your Stylist
- What type of hair do you use, and do you pre-rinse it?
- Have you worked with plant-based braiding hair? How does it behave when installing and sealing?
- Can we keep braids looser at the edges?
- How should I clean my scalp while I have this style?
- How long should I keep the style in?
What We Know — and What We Don't
It is important to be honest about the evidence. Independent testing has found harmful chemicals in synthetic braiding hair, and many wearers report irritation. But testing what is present in a product is different from measuring how much reaches the body during wear, and research on long-term health effects is still limited. Equally, plant-based hair is a newer category, and individual reactions to any product — including natural ones, dyes and finishes — can happen. Choosing a plastic-free fiber removes one set of concerns; it does not replace common sense, patch-testing and medical advice when something feels wrong.
Scalp Care Between Installs
Give your scalp a break
A week or two between long-term styles lets the scalp and edges recover.
Deep cleanse
Wash thoroughly after removing braids to clear build-up.
Moisturize
Condition hair and use a light scalp treatment before the next install.
Check your edges
Thinning at the hairline is a sign to reduce tension in future styles.
When to See a Dermatologist
Mild itching in the first few days after installing braids is common. But see a dermatologist if you notice any of the following:
- Itching that is severe or does not improve after the first week.
- Red, swollen, oozing or crusted patches on the scalp or along the hairline.
- Painful bumps or pustules around hair follicles.
- Hair breakage or thinning at the edges.
- A rash spreading to the neck, ears or face.
A dermatologist can work out whether the cause is irritation, an allergy, an infection or another scalp condition, and recommend treatment. Bring the packaging of the hair you used so they can see what it is made of. Removing the braids early is better than putting up with a reaction for weeks.
More Questions About Itchy Braids
How long does itching usually last after installing braids?
Mild itching often settles within the first few days to a week. Itching that persists or worsens is a reason to see a professional.
Does apple cider vinegar really help?
Many stylists and wearers find a vinegar rinse reduces irritation from coated synthetic hair. Rinse thoroughly and let hair dry fully before installing.
Can I use oils to stop the itch?
Light oils may soothe dryness, but heavy oils can cause build-up. Use sparingly.
Is human hair less itchy than synthetic?
Some people find it more comfortable, but human hair can also be chemically processed. Any hair can cause reactions in sensitive people.
Key Takeaways
- Coatings, chemical residues, tension and build-up are common causes of itchy braids.
- 2025 Consumer Reports testing found carcinogens in every synthetic braiding hair sample.
- Pre-rinsing, looser braids and good scalp care reduce irritation.
- Plant-based banana fiber hair is a plastic-free, biodegradable alternative.
Frequently Asked Questions
Why does braiding hair make my scalp itch?
Common causes include alkaline coatings on synthetic hair, chemical residues, braids that are too tight, product build-up and dry scalp. Allergies are also possible.
How do I stop synthetic braiding hair from itching?
Rinse the hair in diluted apple cider vinegar before installing, ask for looser braids, keep your scalp clean and lightly moisturized, and see a dermatologist if a rash develops.
What did Consumer Reports find in braiding hair?
In 2025 it found carcinogens in all samples from 10 brands, lead in 9 products and benzene in 3, plus volatile organic compounds when heated.
Is banana fiber braiding hair less itchy?
Plant-based brands report that their hair avoids the plastic fibers and alkaline coatings linked to irritation. Individual results vary, and sensitive users should patch-test any new hair.
Is Kanekalon plastic?
Yes. Kanekalon is a brand of modacrylic fiber, a type of synthetic polymer.
Is plant-based braiding hair biodegradable?
Hair made from pure plant fiber such as banana is biodegradable, unlike plastic synthetic hair.
Building a plant-based hair brand?
Source long, combed banana fiber direct from Pakistan. Samples available.
Combed banana fiber Talk to salesWritten by Fawad Farooq Suriya, Co-Founder & Director of Sales & Marketing at The Natural Fiber Company. General information only; not a substitute for medical advice.
