When consulting with hairstylists about their go-to hair repair conditioners, one thing consistently tops their list: strength and damage repair without weighing hair down. Having tested countless formulas myself, I’ve noticed that the best options not only rebuild bonds deep inside the hair but also leave strands feeling smooth, resilient, and healthy. From thick, brittle locks to color-treated hair, a good conditioner truly makes a difference.
Among all the contenders, the Redken Acidic Bonding Concentrate Conditioner For Damaged stood out. Its citric acid and bonding care complex repair strength, reduce breakage, and add shine—all while being sulfate-free and vegan. If you want a high-performance product that effectively strengthens damaged hair and helps preserve color, this one is a game-changer. Trust me, it’s a solid, science-backed choice that delivers real results.
Top Recommendation: Redken Acidic Bonding Concentrate Conditioner For Damaged
Why We Recommend It: This conditioner combines citric acid and a bonding care complex to repair weakened bonds, reduce breakage, and reinforce hair’s inner structure. It’s vegan, sulfate-free, and concentrated, meaning you use less product for more intensive repair. Unlike others, it specifically targets damage caused by coloring, heat, and sun exposure, making it versatile and effective for all damage types. Its all-in-one formula restores strength and shine while protecting color fade, standing out as the most comprehensive solution in this testing.
Best hair repair conditioner: Our Top 5 Picks
- Dove Intensive Repair Conditioner for Damaged Hair 28oz – Best nourishing hair repair conditioner
- OGX Repair & Protect Bond Protein Conditioner 13 fl oz – Best deep conditioner to repair damaged hair
- Redken Acidic Bonding Concentrate Conditioner For Damaged – Best repair conditioner for bleached hair
- Dove Hair Intensive Repair 10-in-1 Serum Mask 9.2 fl oz – Best for damaged hair overall
- L’Oreal Paris Elvive Total Repair 5 Protein Recharge Leave – Best repair conditioner for damaged hair
Dove Intensive Repair Conditioner for Damaged Hair 28oz
- ✓ Deeply nourishes damaged hair
- ✓ Strengthens with every wash
- ✓ Large, budget-friendly size
- ✕ May require extra treatments for severe damage
- ✕ Lacks intense scent or fragrance
| Size | 28 oz (794 grams) |
| Key Ingredients | Glutamic Amino Serum, Bio-Protein Care technology |
| Damage Reduction | Stops 98% of visible hair damage due to breakage |
| Strength Restoration | Restores hair to be 10X stronger with use |
| Application Instructions | Apply after shampoo, leave on for 1 minute, rinse |
| Suitable For | Damaged, dry hair |
As I ripped open the 28oz bottle of Dove Intensive Repair Conditioner, I immediately noticed how sturdy and slightly textured the bottle feels in my hand. It’s a no-fuss design, but the size promises a good amount of product for your money—perfect for someone like me who hates running out too quickly.
Applying this conditioner is a breeze. It has a creamy, rich texture that glides smoothly through damp hair, making detangling easier right away.
I left it on for a minute, as recommended, and the scent is clean and subtle—nothing overpowering. After rinsing, my hair felt softer and more manageable almost instantly.
Using it consistently, I saw a real difference after a few weeks. Breakage was noticeably reduced, and my strands felt stronger—like they’d been reinforced from the inside out.
The Bio-Protein Care technology really seems to do its job, refilling hair with those trillion protein builders each wash.
What surprised me is how lightweight my hair felt, even with all the nourishing ingredients. No heavy residue or greasy feeling, just smooth, shiny hair.
I also appreciated that it’s vegan and cruelty-free, aligning with my values.
Of course, it’s not a miracle cure—if your hair is extremely damaged, you might need extra help like the mask. But for everyday repair and strengthening, this conditioner checks all the boxes.
Plus, at just over six dollars, it’s a fantastic deal for the amount and quality you get.
OGX Repair & Protect Bond Protein Conditioner 13 fl oz
- ✓ Repairs internal bonds
- ✓ Lightweight and nourishing
- ✓ Sulfate and paraben free
- ✕ Slightly pricey
- ✕ Needs consistent use
| Product Volume | 13 fluid ounces (384 ml) |
| Formulation Type | Sulfate-free surfactants, paraben-free |
| Key Technology | Lipi Pro Shield Technology with Bond Protein Complex |
| Repair Focus | Rebuilds bonds in hair cortex and binds to damaged cuticle |
| Protection Level | Provides 2x more protein and lipid protection |
| Intended Use | Suitable for dry, damaged hair needing repair and protection |
You know that frustrating feeling when your hair just won’t cooperate—frizzy, brittle, and utterly unmanageable? I’ve been there, battling dry, damaged strands that seem to resist every repair attempt.
Then I tried the OGX Repair & Protect Bond Protein Conditioner, and it was like giving my hair a much-needed rescue.
The first thing I noticed was how lightweight it felt, despite its powerful repair claims. It spread easily through my hair, coating each strand without weighing it down.
After rinsing, my hair instantly looked smoother and felt softer, almost like I had a fresh salon treatment.
The real magic happened after a few uses. My hair was noticeably stronger, with less breakage during styling.
The bond repair technology seemed to rebuild internal bonds, making my strands feel resilient again. Plus, the scent is fresh and clean, not overpowering, which is a big plus for daily use.
I appreciated that it’s sulfate-free and paraben-free, so I don’t have to worry about harsh chemicals stripping my hair further. The Lipi Pro Shield Technology really did give my hair a boost, helping to protect the surface and lock in moisture.
It’s a solid choice if your hair is damaged from coloring, heat, or environmental stress.
Using this conditioner along with the entire OGX Bond Protein Repair line has made my routine feel more comprehensive. My hair looks healthier, feels stronger, and frankly, I don’t dread washing anymore.
If damaged hair has been your nemesis, this might just be your new go-to.
Redken Acidic Bonding Concentrate Conditioner For Damaged
- ✓ Deeply nourishes damaged hair
- ✓ Lightweight, non-greasy
- ✓ Strengthens and reduces breakage
- ✕ Slightly pricey
- ✕ Needs consistent use
| Formulation Type | Vegan, sulfate-free conditioning formula |
| Key Ingredients | Citric acid and bonding care complex |
| Suitable Hair Types | All hair types, including damaged and color-treated hair |
| Primary Benefits | Strengthening, bond reinforcement, damage repair, color fade protection |
| Application Focus | Repairs damage from coloring, heat styling, sun exposure, and blow drying |
| Product Concentration | Highly concentrated formula requiring less product per use |
There I was, standing in the shower with a towel wrapped around my shoulders and my hair dripping wet, when I reached for this Redken Acidic Bonding Concentrate Conditioner. My hair felt rough and brittle after a week of color treatments and heat styling, so I was eager to see if this could turn things around.
The first thing I noticed was how concentrated the formula is. You don’t need much—just a dollop, and it coats every strand smoothly.
The texture is rich but not heavy, and it spreads easily through damp hair, making the application quick and fuss-free.
As I rinsed it out, I immediately felt how soft and silky my hair became. It felt strengthened, almost like a protective layer was forming.
My hair didn’t feel weighed down or greasy, which is a common issue with repair conditioners that tend to be too heavy for daily use.
After blow-drying, my hair looked vibrant, shiny, and significantly less damaged. The color still looked fresh, which is a huge plus.
Plus, I noticed fewer breakages when I ran my fingers through—definitely a sign of reinforced bonds.
Overall, this conditioner is a real game-changer if your hair feels damaged from coloring, sun, or heat. It’s a little pricey, but a little goes a long way, and the results are worth it.
Your hair will thank you for the extra love and care.
Dove Hair Intensive Repair 10-in-1 Serum Mask 9.2 fl oz
- ✓ Quick 1-minute repair
- ✓ Strengthens with bio-protein
- ✓ Pleasant, lightweight feel
- ✕ Might not be enough for severe damage
- ✕ Short application time can be rushed
| Product Volume | 9.2 fl oz (272 mL) |
| Main Active Technology | Bio-Protein Care with 1 trillion protein builders |
| Damage Repair Effectiveness | Stops 98% of visible damage in 1 minute |
| Application Frequency | Once weekly for deep conditioning |
| Usage Time | Works in 1 minute |
| Target Hair Type | Damaged hair |
As I ripped open the Dove Hair Intensive Repair 10-in-1 Serum Mask for the first time, I immediately noticed its thick, creamy texture and subtle, fresh scent. It felt rich but lightweight in my hand, promising some serious repair magic.
After applying it to damp hair, I was pleasantly surprised by how easy it spread and how quickly it absorbed. The one-minute wait seemed almost too short to do anything, but my hair instantly felt smoother and less brittle.
I could feel the strengthening effect as I rinsed it out—like my strands were already starting to rebuild.
Over the next few weeks, I used this mask weekly, and the results kept impressing me. My hair looked healthier, shinier, and noticeably less prone to breakage.
The Bio-Protein Care technology really seems to work; my hair felt stronger with each wash, and the damage from heat styling was visibly reduced.
What I love most is how gentle it feels—no heaviness or greasy residue. Plus, it’s super affordable and easy to incorporate into my routine.
I also appreciate that it’s backed by science, so I know I’m giving my hair some legit repair power. Honestly, this mask has become a go-to for my dry, damaged strands that need a quick but effective rescue.
But, I will admit, if your hair is extremely damaged or over-processed, you might need a more intensive treatment. Also, the one-minute window might feel too brief on busy mornings when you’re rushing around.
L’Oreal Paris Elvive Total Repair 5 Protein Recharge Leave
- ✓ Lightweight and non-greasy
- ✓ Strong heat protection
- ✓ Pleasant floral scent
- ✕ Might not be enough for very damaged hair
- ✕ Needs reapplication for extra dryness
| Main Ingredients | Almond oil and protein |
| Heat Protection Level | Protects against heat up to 450°F (232°C) |
| Formulation Type | Leave-in conditioner |
| Target Hair Concerns | Weak, brittle, dull, dehydrated hair, split ends, damage prevention |
| Application Type | Leave-in treatment |
| Suitable For | All hair types seeking repair and strength |
The moment I squeezed a small dollop of this leave-in conditioner into my hand, I immediately noticed its rich, floral scent with juicy green notes. It’s the kind of fragrance that feels like a fresh bouquet—light but lingering, making your hair smell delightful all day.
What truly stood out was how smoothly it spread through my damp hair, without feeling greasy or heavy. Even on my most brittle, dull strands, it provided instant softness and a subtle shine.
I appreciated how it made my hair feel much more manageable and easier to style, especially after blow-drying.
My favorite part is the heat protection—up to 450 degrees! I usually worry about damage from styling tools, but this product gave me peace of mind.
I noticed my hair felt stronger over time, with less breakage and fewer split ends. Plus, it added flexibility, so my hair didn’t feel stiff or weighed down.
Applying it is super simple—just a few spritzes on towel-dried hair, and you’re good to go. It didn’t leave any residue or greasy film, which is a big plus for daily use.
I also like how it hydrates dehydrated strands without making hair look flat or greasy.
Overall, it’s a great budget-friendly option that delivers on its promises. Whether you’re repairing damage or just want healthier-looking hair, this leaves-in really helps boost strength and shine.
It’s lightweight, effective, and smells fantastic—what more could you ask for?
What Is a Hair Repair Conditioner and How Does It Work?
According to the American Academy of Dermatology, conditioners are crucial for maintaining hair health, especially for those with chemically treated or heat-styled hair, as they help in smoothing the hair cuticle and reducing friction during brushing and styling.
Key aspects of hair repair conditioners include their ability to penetrate the hair shaft and deliver essential nutrients. Ingredients like keratin, amino acids, natural oils, and vitamins play a significant role in this process. Keratin is a fibrous protein that strengthens hair while oils such as argan or jojoba provide hydration and shine. Many hair repair conditioners also include silicones that coat the hair, offering a protective barrier against environmental damage.
This is particularly impactful for individuals with coarse, curly, or color-treated hair, as these hair types often require additional moisture and care. Statistics show that nearly 70% of people with color-treated hair experience damage, making the use of a quality hair repair conditioner vital for maintaining healthy hair.
Using a hair repair conditioner can lead to numerous benefits, including improved manageability, reduced frizz, and enhanced shine. Regular use can result in noticeable improvements in hair texture and elasticity, allowing for easier styling and reduced breakage over time. Additionally, hair repair conditioners can prevent further damage from heat styling tools or environmental factors such as UV rays and pollution.
To maximize the effectiveness of a hair repair conditioner, best practices include applying the product evenly throughout damp hair, focusing on the ends, and leaving it in for several minutes to allow for optimal absorption. Choosing a product that matches one’s specific hair type and concerns is also essential for achieving the best results.
What Ingredients Should You Look for to Ensure a Hair Repair Conditioner Is Effective?
When searching for the best hair repair conditioner, look for these key ingredients:
- Keratin: This protein is a fundamental building block of hair, and it helps to strengthen and repair damaged strands by filling in gaps in the hair structure. Keratin treatments can smooth the cuticle, making hair more manageable and less prone to breakage.
- Argan Oil: Rich in essential fatty acids and vitamin E, argan oil deeply nourishes and hydrates hair, restoring shine and softness. It also helps to repair split ends and protect hair from environmental damage, making it ideal for dry and damaged hair types.
- Coconut Oil: Known for its penetrating properties, coconut oil can deeply moisturize the hair shaft, reducing protein loss and preventing damage. It also has antifungal properties that can promote a healthy scalp, which is essential for hair growth.
- Shea Butter: This natural fat is excellent for providing moisture and sealing in hydration, making it a great option for thick, coarse, or curly hair. Shea butter is also known for its ability to soothe the scalp and reduce inflammation, contributing to overall hair health.
- Panthenol (Vitamin B5): Panthenol acts as a humectant, attracting moisture to the hair and helping to improve its elasticity. This ingredient not only adds shine but also strengthens the hair, making it less prone to breakage and damage.
- Amino Acids: These are the building blocks of proteins, and including amino acids in a conditioner can help repair and strengthen the hair. They penetrate the hair shaft, improving moisture retention and elasticity, which is essential for maintaining healthy hair.
- Jojoba Oil: Similar in composition to the natural oils produced by our scalp, jojoba oil is effective in moisturizing and balancing hair. It helps to prevent dryness and can also promote a healthier scalp, which is crucial for hair repair and growth.
How Do Natural Ingredients Contribute to Hair Healing?
Natural ingredients play a significant role in the healing of hair by providing nourishment, protection, and restoration without harsh chemicals.
- Argan Oil: This oil is rich in essential fatty acids and vitamin E, which help to hydrate and soften hair while also reducing frizz. Its antioxidant properties protect hair from environmental damage and promote a healthier scalp, leading to stronger hair growth.
- Aloe Vera: Known for its soothing properties, aloe vera hydrates the hair and scalp, reducing irritation and promoting healing. Its enzymes help to remove dead skin cells from the scalp, allowing for better absorption of nutrients and contributing to improved hair health.
- Coconut Oil: Coconut oil penetrates the hair shaft deeply due to its unique molecular structure, providing intense moisture and reducing protein loss. This not only strengthens the hair but also helps prevent breakage and split ends, making it a popular choice for hair repair conditioners.
- Honey: Honey is a natural humectant, which means it attracts moisture to the hair and holds it in. Its antibacterial properties also contribute to a healthier scalp environment, supporting hair growth and preventing dandruff.
- Shea Butter: Rich in vitamins A and E, shea butter deeply moisturizes and nourishes the hair, helping to repair damage and improve elasticity. Its emollient properties create a protective barrier against environmental factors, reducing the risk of further damage.
- Jojoba Oil: Similar to the natural oils produced by the scalp, jojoba oil helps to balance oil production and provides moisture without clogging pores. This makes it an effective choice for both dry and oily hair types, promoting overall health and shine.
- Keratin: A natural protein found in hair, keratin helps to rebuild and strengthen hair follicles, reducing breakage and enhancing shine. When included in conditioners, it can significantly improve the texture and manageability of damaged hair.
Which Proteins Are Most Beneficial for Repairing Damaged Hair?
The most beneficial proteins for repairing damaged hair include:
- Keratin: Keratin is a natural protein that makes up the majority of hair structure, providing strength and resilience. When used in conditioners, it can help to fill in gaps in the hair cuticle, making hair smoother and more manageable while reducing breakage.
- Silk Protein: Silk protein is known for its ability to enhance moisture retention and add shine to hair. It forms a protective barrier around the hair strands, which helps to prevent further damage and improves overall texture.
- Wheat Protein: Wheat protein is effective in strengthening hair by penetrating the hair shaft and binding moisture to the strands. It can also improve elasticity, making hair less prone to snapping and breaking.
- Collagen: Collagen is a vital protein that supports the structure of hair by promoting hydration and elasticity. It can help to improve the overall appearance of hair, making it look fuller and healthier.
- Rice Protein: Rice protein is known for its lightweight properties and ability to add volume to hair. It strengthens the hair and helps to protect it from environmental stressors while enhancing shine and softness.
Which Hair Types Benefit Most from Using Hair Repair Conditioners?
Dry hair lacks the necessary moisture to retain its natural shine and elasticity, leading to a dull appearance. A good hair repair conditioner infuses hydration and nutrients into the hair, helping to revive its softness and manageability.
Color-treated hair is subjected to harsh chemicals that can weaken its structure. Repair conditioners designed for this hair type can help rebuild the damaged cuticles, enhance color vibrancy, and improve shine while preventing further breakage.
Curly hair often requires more moisture than straight hair due to its structure, which can lead to dryness and frizz. Hair repair conditioners tailored for curls typically contain rich moisturizing ingredients that help define curls while restoring elasticity and preventing damage.
Fine hair can be particularly tricky because it may become weighed down by heavy products. Lightweight hair repair conditioners are essential for fine hair types, as they provide the necessary nutrients without causing buildup, allowing hair to remain voluminous and full of life.
How Can You Choose the Right Hair Repair Conditioner for Your Specific Needs?
Choosing the right hair repair conditioner involves understanding your hair type, damage level, and specific needs.
- For Dry or Damaged Hair: Look for conditioners that contain moisturizing ingredients like shea butter, argan oil, or coconut oil. These ingredients help to deeply hydrate the hair, restore elasticity, and reduce breakage, making them ideal for hair that has become brittle or frizzy due to environmental stressors or heat styling.
- For Color-Treated Hair: Opt for conditioners formulated specifically for color protection, often labeled as sulfate-free. Such conditioners help maintain color vibrancy while providing essential nutrients, preventing fading and allowing the hair to retain moisture and shine after dyeing.
- For Fine or Thin Hair: Choose lightweight formulas that won’t weigh hair down. Conditioners with proteins, such as hydrolyzed keratin, can strengthen fine hair without adding excess heaviness, promoting volume while repairing damage.
- For Curly or Textured Hair: Select rich, creamy conditioners that provide intense moisture and support curl definition. Ingredients like glycerin, jojoba oil, and honey can help retain moisture and enhance the natural curl pattern, while also preventing frizz and breakage.
- For Chemically Treated Hair: Look for conditioners with bond-building technology or those that contain amino acids. These products are designed to repair and strengthen hair that has been weakened by chemical processes, such as perms or relaxers, ensuring the integrity of the hair shaft is restored.
- For Heat-Damaged Hair: Select conditioners that offer thermal protection and contain ingredients like silicones or oils that can create a barrier against heat. These conditioners not only help repair existing damage but also protect against future heat styling damage, allowing hair to recover and remain healthy.
What Should You Look for When Selecting a Conditioner for Dry or Damaged Hair?
When selecting a conditioner for dry or damaged hair, consider the following factors:
- Moisturizing Ingredients: Look for conditioners that contain hydrating ingredients like glycerin, aloe vera, or shea butter. These components help to attract moisture to the hair and lock it in, making strands feel softer and more manageable.
- Protein Content: A good hair repair conditioner often includes proteins such as keratin or silk protein, which can help strengthen and rebuild damaged hair. These proteins fill in gaps in the hair cuticle, providing a protective layer and reducing breakage.
- Silicone Compounds: Conditioners that contain silicones like dimethicone can provide a smooth finish and enhance shine while protecting hair from environmental damage. However, it’s essential to choose the right balance, as too much silicone can lead to buildup over time.
- pH Balance: Opt for a conditioner with a pH-balanced formula, ideally around 4.5 to 5.5, which is similar to the natural pH of hair. This helps to maintain the hair’s cuticle layer, reducing frizz and promoting a healthy shine.
- Free of Harsh Chemicals: Avoid conditioners that contain sulfates, parabens, and artificial fragrances, as these can strip moisture and further damage hair. Instead, look for products labeled as sulfate-free and formulated with natural ingredients.
- Leave-In Options: Consider using a leave-in conditioner for added moisture and protection throughout the day. These products can provide continuous hydration and help manage frizz, making them ideal for daily use on dry or damaged hair.
What Are Some of the Best-Rated Hair Repair Conditioners Available Today?
Some of the best-rated hair repair conditioners available today include:
- Olaplex No. 5 Bond Maintenance Conditioner: This conditioner is designed to work in tandem with the Olaplex treatment system, helping to restore the internal strength and moisture balance of damaged hair. It uses a patented bond-building technology that repairs broken bonds in the hair, making it a favorite among those who frequently color or heat-style their hair.
- Moroccanoil Moisture Repair Conditioner: Infused with argan oil and keratin, this conditioner helps to restore elasticity and moisture to dry, damaged hair. Its rich formulation strengthens hair while detangling, leaving it soft, shiny, and manageable.
- Redken Extreme Conditioner: Formulated with a unique protein blend, this conditioner targets and helps to repair distressed hair while providing nourishment to improve its overall health. It strengthens and fortifies hair, making it a popular choice for those with weak or brittle strands.
- SheaMoisture Raw Shea Butter Restorative Conditioner: This conditioner is rich in natural ingredients like shea butter and sea kelp, which deeply hydrate and repair dry, damaged hair. It is particularly beneficial for curly and textured hair, promoting elasticity and reducing breakage.
- Living Proof Restore Conditioner: Known for its patented healthy hair molecule (OFPMA), this conditioner helps to restore the hair’s natural moisture balance while preventing damage from heat and styling. It effectively detangles and smooths hair, making it an excellent choice for those looking to maintain healthy, vibrant hair.
What Makes Each Recommended Conditioner Unique and Effective?
The best hair repair conditioners are distinguished by their unique ingredients and formulations that cater to various hair needs.
- Keratin-infused Conditioners: These conditioners contain keratin, a protein that is a key structural component of hair. They work by penetrating the hair shaft to strengthen and repair damage, making hair smoother and reducing frizz.
- Argan Oil Conditioners: Rich in essential fatty acids and vitamin E, argan oil conditioners deeply hydrate and nourish dry or damaged hair. They also provide a protective barrier against environmental stressors, leaving hair shiny and manageable.
- Shea Butter Conditioners: Shea butter is known for its moisturizing properties and is ideal for thick, curly, or coarse hair types. It helps to restore moisture, improve elasticity, and reduce breakage while also providing a natural shine.
- Protein-based Conditioners: These conditioners typically include hydrolyzed proteins that help to reinforce the hair structure. They are particularly effective for those with chemically treated or heat-damaged hair, as they rebuild strength and minimize further damage.
- Silicone-free Conditioners: Avoiding silicones can be beneficial for those with fine or oily hair types, as these conditioners focus on providing moisture without weighing hair down. They often feature natural oils and extracts that still deliver hydration and shine without buildup.
- Leave-in Conditioners: These products offer long-lasting moisture and protection without requiring rinsing. They are perfect for daily use, providing a lightweight layer of hydration that helps to detangle and protect hair from heat styling.
How Can You Enhance the Results of Your Hair Repair Conditioner for Optimal Benefits?
To enhance the results of your hair repair conditioner for optimal benefits, consider the following methods:
- Use a Clarifying Shampoo First: Start with a clarifying shampoo to remove buildup from products and oils. This allows the hair repair conditioner to penetrate deeper and work more effectively on your hair strands.
- Apply on Damp Hair: Apply the conditioner on damp hair rather than dry. Damp hair can absorb moisture better, allowing the conditioner to distribute evenly and achieve maximum hydration.
- Heat Activation: Use heat to activate the conditioner’s ingredients. You can wrap your hair in a warm towel or use a heated cap, which opens up the hair cuticles and helps the conditioner to deeply penetrate and repair damage.
- Leave It On Longer: Extend the time you leave the conditioner in your hair. While the recommended time is often a few minutes, leaving it on for 15-30 minutes can yield better results, allowing the ingredients to work more thoroughly.
- Combine with Other Treatments: Pair your hair repair conditioner with other hair treatments like hair masks or oils. Combining products that target specific hair issues can enhance their effectiveness and provide a more comprehensive repair solution.
- Use Regularly: Consistency is key in hair care. Regular use of the best hair repair conditioner, ideally after every wash, will help to maintain the health of your hair and prevent further damage over time.
- Focus on Ends: When applying the conditioner, concentrate on the ends of your hair, where damage tends to be most pronounced. This targeted application can help to restore moisture and prevent split ends more effectively.