Brittle hair is often a sign that something in your routine needs tweaking. While it’s certainly possible to have naturally fragile tresses, more often than not, having dry, brittle hair means that your strands are damaged in some way. If you’re looking to minimize concerns like split ends and breakage, it's important to first figure out the root (pun intended) cause of your hair’s brittleness. From there, you can give your hair the TLC it needs to look and feel its best. We tapped a professional hairstylist for details on brittle hair causes, treatments, and tips for managing fragile strands. Read on for her expertise and discover some of our favorite products for dry, brittle hair.
What Is Brittle Hair?
Brittle hair is, quite simply, fragile hair. This common concern can affect all hair types and textures, and generally speaking, it’s pretty easy to spot. “If you brush your hair and see little, tiny pieces of short hairs on your shoulders, on your shirt, or on your bathroom sink, that's an indication that your hair is breaking off,” explains Redken artist and hair educator Karla Valenzuela. Likewise, if your hair can’t seem to grow past a certain length, breakage—and, by extension, brittleness—is likely to blame. Depending on the cause, brittleness may coexist with other hair concerns, such as split ends, dryness, and dullness. However, that’s not always the case—as mentioned, some people naturally have more fragile strands than others.
What Causes Brittle Hair?
Now that you know what brittle hair looks and feels like, let’s discuss why it happens. There are several factors at play, including your general haircare habits and environmental stressors.
Lack of moisture and hydration
Your hair needs adequate hydration to look and feel its best. Without enough moisture, it may feel dry, rough, and unmanageable. Dry hair also tends to lose its natural elasticity, which makes it more vulnerable to concerns like split ends and breakage. If you have a dry hair type, it’s a good idea to use products designed to replenish and retain moisture, such as deep conditioners and hydrating leave-in treatments.
Heat styling and chemical damage
“Everybody's hair is made up mostly of protein,” Valenzuela explains. “With the stress of heat tools and chemicals on our hair, those proteins start to break down and become weaker, causing your hair to look and feel damaged.”
Blow drying or straightening your hair once in a while is unlikely to cause serious damage. However, repeated use (particularly without a quality heat protectant) can weaken the hair shaft, eventually leading to split ends and breakage.
Like heat styling, chemical treatments (including bleaching, coloring, perming, and relaxing) can cause your hair to become brittle and vulnerable to damage. If you choose to chemically process your hair, it’s important to adjust your haircare routine accordingly to help reinforce your strands and protect against breakage.
Environmental factors
Just like harsh weather conditions can affect your skin, they can also affect your hair. For instance, low humidity levels in cold, dry weather conditions can strip your hair of essential moisture, leaving it weak and prone to breakage. Sun exposure can also dry out the hair and lead to dryness and fragility (particularly if your hair is already susceptible to damage). Even relatively mild weather conditions can affect your strands—high winds, for example, can cause your hair to tangle, which may lead to breakage if not properly addressed.
Another thing to think about is the type of water that your hair is exposed to. If you shower in hard water, minerals can build up on the hair shaft, making your strands dry and prone to snapping. Installing a water filter in your shower or using haircare products designed to help combat the effects of hard water can help protect your strands from unnecessary damage.
Maintaining an improper hair care routine
Your hair routine—including the way you wash it and the products you use—directly impacts the strength of your hair. Your scalp produces sebum, a natural oil that keeps hair hydrated. Washing your hair too frequently, especially with harsh shampoos, can remove these oils, leaving the hair dry, weak, and vulnerable to breakage.
How To Treat And Care For Brittle Hair
The best treatment for hair breakage is simple: Keep your hair moisturized, protect your hair from damaging stressors, and adopt a high-quality haircare routine designed to help strengthen and protect your strands.
Keep your hair hydrated
If you're struggling with brittle hair, the first thing to do is switch up your haircare routine. Swap your regular shampoo and conditioner to sulfate-free formulas that contain moisturizing, nourishing ingredients, such as ceramides or hyaluronic acid. Or, consider reaching for a protein-infused duo to help reinforce your strands (just be sure not to use protein-infused products too frequently—according to Valenzuela, overuse can leave your hair feeling dry and straw-like). To help keep your hair feeling hydrated and soft, Valenzuela also recommends using a deep conditioning treatment or hair mask regularly to replenish lost moisture, strengthen the hair shaft, and help prevent breakage.
Reduce heat and chemical damage
While we hate to be the bearer of bad news, you'll have to take a break (or limit) your hair's exposure to heat and chemical treatments if you really want to restore your hair's strength and elasticity. If you do plan on using hot tools, always make sure to use a heat protectant. As for chemical treatments, try spacing them out and avoid undergoing multiple harsh treatments in quick succession. If your hair is already damaged from chemical processing, you may want to consider swapping out your existing shampoo and conditioner for a bond-repairing system designed to help rebuild weakened hair bonds.
Be gentle on your hair
Adopting gentle hair care practices can make a big difference in minimizing damage, preventing further breakage, and restoring strength. One easy switch-up is to wear a hair wrap when you sleep or swap your traditional pillowcase for a satin pillowcase (satin reduces friction and minimizes the risk of breakage). Also, avoid tight hairstyles, as these can put excess tension on the hair and scalp, which weakens the hair's elasticity and causes breakage. Finally, if you need to detangle your hair, use a wide-tooth comb or a dedicated detangling—these are designed to glide through the hair easily without pulling on the strands.
Our Favorite Products For Brittle Hair
If you’re on the hunt for the best products for damaged hair, we’re here to help. Ahead, we’ve rounded up our top choices from the L’Oréal portfolio of brands.
Redken Extreme Shampoo and Conditioner
Redken’s strengthening shampoo is one of Valenzuela’s top picks for those with dry, brittle hair. The pH-balanced formula is made with the brand’s Strength Complex and works to gently cleanse the hair while helping to protect against breakage. After lathering up with the gentle formula, replenish your strands with the coordinating conditioner to help fortify your strands from root to tip.
Redken Extreme Anti-Snap Anti-Breakage Leave-In Treatment
Reach for this multi-tasking leave-in before styling your hair. The protein-infused formula helps protect against heat damage, chemical damage, and friction and reduces breakage by up to 73% (!) when paired with the aforementioned Redken Extreme Shampoo and Conditioner.
Biolage Strength Recovery Shampoo and Conditioning Cream
This squalane-infused duo is an excellent pick for those with dry, fragile strands. The shampoo gently cleanses away build-up and other impurities without compromising the hair’s integrity, while the conditioning cream delivers intense yet lightweight moisture for more manageable, healthier-looking strands.
Biolage Strength Recovery Deep Treatment Pack
If your hair feels dry or needs a little extra TLC, swap out your usual conditioner for this deep conditioning mask. It’s made with 100% vegan squalane and delivers intense moisture and repair to leave the hair 92% more conditioned after a single use.
Kérastase Nutritive Nectar Thermique Heat Protecting Cream
As mentioned, heat styling your hair can contribute to damage and leave your strands weak and susceptible to breakage. But that doesn’t mean you have to break up with your blow dryer for good—just that you have to take extra care when using it. If you plan to heat style your hair, prime your strands with this nourishing leave-in. The protein-infused formula helps condition the hair, improves manageability, and tames frizz—all while protecting against temperatures up to 450 degrees Fahrenheit.
Redken Acidic Bonding Concentrate Intensive Treatment
If your hair is brittle due to overprocessing, a bonding treatment may help restore your strands to their former glory. This pre-shampoo treatment is an editor favorite—it’s formulated with citric acid and a 14% bonding care complex and provides intense conditioning for noticably stronger, smoother hair. We suggest pairing it with the brand’s Acidic Bonding Concentrate Shampoo and Conditioner for the best results.
Redken All Soft Heavy Cream Deep Conditioning Treatment Mask
Replenish dry, brittle hair in as few as five minutes with this rich, creamy mask. The luxe formula features silk amino acid and a trio of nourishing oils (avocado, olive, and argan) and helps replenish hair’s moisture to reveal stronger, smoother strands within a single use.
L'Oréal Professionnel Serie Expert Inforcer Anti-Breakage Masque
This professional-quality mask is another excellent option for those with weak, brittle hair. It’s formulated with vitamin B6 and biotin and helps reinforce the hair, leaving it stronger and more resistant to damage with continued use.
Kérastase Discipline Keratine Thermique Heat Protectant
Before getting started on your at-home blowout, prep your strands with this lightweight leave-in. The ceramide-infused formula works to protect the hair against damage caused by hot tools while smoothing the hair and taming frizz for sleek, silky-looking strands.
Pureology Strength Cure Superfood Treatment
This brittle hair treatment is among our top picks for those with dull, color-treated strands. The color-safe formula provides intense nourishment and helps repair damaged hair, leaving your tresses stronger, smoother, and softer in just one use.
Next Up: Our 20 Best Hair Treatments for Damaged Hair in 2025
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Header image credits (left to right): @biolage, @stephaastylez
