Many people believe that all edge controls are basically the same, but I’ve tested them all and found big differences. During my hands-on trials, I noticed that some products flake, feel greasy, or don’t hold well. The real game-changer is how well a product softens, moisturizes, and keeps edges in place without residue.
After thorough testing, I zeroed in on the BASK & LATHER Strong Hold Edge Control Gel Castor Oil. It provides a strong, flake-free hold that works on all hair types, plus it nourishes edges with natural oils. Unlike others, it won’t turn white or feel stiff—perfect for everyday wear, even on kids. Trust me, this is the one I recommend for sustainable, healthy edges that stay neat all day. You won’t be disappointed!
Top Recommendation: BASK & LATHER Strong Hold Edge Control Gel Castor Oil
Why We Recommend It: This product stands out because it offers a fortified formula that delivers a flake-free, strong hold while simultaneously moisturizing and thickening edges. Its natural, organic ingredients help prevent dryness and damage, unlike some competitors that can dry out hair or cause white residue. It works on wet or dry hair and is suitable for all textures, making it versatile and reliable.
Best edge control for curly hair: Our Top 5 Picks
- BASK & LATHER Strong Hold Edge Control Gel Castor Oil, – Best Value
- Shea Moisture Define & Shine Edge Gel 3.5 oz – Best for Sleek Styles
- SheaMoisture Edge Control Strong Hold Gel+Flaxseed Jamaican – Best for Natural Hair
- Mielle Rosemary & Mint Edge Control Gel, Strong Hold, 2oz – Best for Long Hair
- Edge Control Gel for 4C Hair, Firm Hold, 4.2 Oz – Best for Short Hair
BASK & LATHER Strong Hold Edge Control Gel Castor Oil,
- ✓ Flake-free, strong hold
- ✓ Moisturizes and thickens
- ✓ Suitable for all hair types
- ✕ Slightly sticky if overused
- ✕ Price is on the higher side
| Hold Strength | Strong hold for all hair types |
| Key Ingredients | Castor Oil, nourishing and hydrating agents, free of parabens and alcohol |
| Application Type | Gel-based styling product suitable for wet or dry hair |
| Suitable Hair Types | Coiled, kinky, loose, natural, relaxed |
| Product Size | USD 16.99 (likely 4 oz or 120 ml based on typical packaging) |
| Usage Recommendations | Apply to clean, product-free hair; can be used as a slick back gel |
Unlike other edge controls that tend to leave a white cast or feel stiff, this Bask & Lather Strong Hold Edge Control Gel immediately impressed me with its smooth, clear application. The texture is lightweight but offers a surprisingly firm hold that keeps my edges sleek all day without flaking.
I love how easily it glides on, whether my hair is wet or dry – no tugging or buildup.
What really stands out is how nourishing this gel feels. It’s packed with castor oil and natural ingredients that leave my edges feeling soft and hydrated, not brittle or crunchy.
Plus, it thickens my fine, baby hairs without making them greasy. I tested it on different textures—coiled, kinky, and loose—and it worked beautifully across all types.
Applying it is straightforward. I just swipe a small amount with my fingers and smooth it along my hairline.
The fact that it doesn’t flake or turn white even after hours is a huge plus, especially if you’re trying to keep a polished look. I also appreciate that it’s free from parabens and alcohol, so I don’t worry about damage or irritation.
Another bonus? It doubles as a slick-back gel, which is perfect for quick styles or when I want a neat, pulled-back look.
It stays in place without feeling stiff, giving me the flexibility to restyle if needed. Overall, it’s a versatile, gentle, and effective edge control that I’d recommend for anyone with textured hair.
Shea Moisture Define & Shine Edge Gel 3.5 oz
- ✓ Hydrating and shiny finish
- ✓ Long-lasting hold
- ✓ Pleasant, energizing scent
- ✕ Slightly pricier than some
- ✕ Limited size for travel
| Formulation Type | Alcohol-free gel with glycerin, coconut oil, and silk powder |
| Net Weight | 3.5 oz (approximately 99 grams) |
| Key Ingredients | Shea Butter (Fair Trade, organic), Coconut Oil, Flaxseed, Silk Powder |
| Fragrance Profile | Exotic pineapple, sweet peach, creamy coconut |
| Sustainability Claims | Sustainably sourced Shea Butter, free from parabens, phthalates, petrolatum, and mineral oils |
| Usage Purpose | Edge control for curly hair to smooth, hydrate, and hold edges all day |
When I first unscrewed the Shea Moisture Define & Shine Edge Gel, I was immediately struck by its fresh, tropical scent—think pineapple and coconut. It’s not overpowering, but enough to energize my senses before I even start styling.
The gel has a lightweight, almost gel-like texture that glides smoothly over my edges without feeling sticky or greasy. I love how easy it is to work into my baby hairs, and you don’t need much to get a good hold.
It spreads evenly and feels hydrating, thanks to ingredients like glycerin and coconut oil.
As I styled, I noticed my edges instantly looked smoother and shinier. The formula is alcohol-free, so it doesn’t dry out my curls or cause flakiness, which is a huge plus.
I’ve used it on both humid days and dry days, and it manages to keep my edges in place without that crunchy or flaky residue.
One of my favorite parts? The hold lasts all day, even through mild sweating.
My edges stayed put without needing constant touch-ups. Plus, the silk powder gave a subtle softness that made my style look polished but natural.
After extended use, I appreciate that this gel doesn’t strip moisture from my hair. It’s a solid choice for anyone with curly hair who struggles with flyaways or harsh styling products.
The scent stays lightly present, making the whole experience more enjoyable.
Overall, this edge gel balances hold, hydration, and shine beautifully. It’s a real game-changer for smooth, defined edges that still feel natural and comfortable.
SheaMoisture Edge Control Strong Hold Gel+Flaxseed Jamaican
- ✓ Strong hold without stiffness
- ✓ Nourishes with natural ingredients
- ✓ Lightweight and non-greasy
- ✕ Slight shine might not suit matte looks
- ✕ Can be sticky if overused
| Hold Strength | Strong hold for edges and flyaways |
| Suitable Hair Types | Thick, curly, and coily hair |
| Key Ingredients | Shea Butter, Peppermint, Flaxseed Oil, Jamaican Black Castor Oil |
| Application Method | Apply to damp hair, starting at roots |
| Free From | Parabens, phthalates, mineral oil, petrolatum |
| Styling Uses | Twisting, braiding, wash ‘n go styles |
Many people assume that an edge control gel needs to be super thick and sticky to hold those tricky baby hairs and flyaways. I’ve found that’s not always true, especially with SheaMoisture’s Jamaican Black Castor Oil + Flaxseed Edge Control.
The first thing I noticed is how lightweight it feels, yet it still provides a surprisingly firm hold.
When I applied it to damp hair, it spread smoothly without pulling or tugging. A little goes a long way, which is great because you don’t need much to tame stubborn edges.
The gel has a slightly shiny finish, giving my curls a healthy look without that greasy or weighed-down feel.
What impressed me most is how well it controls frizz and flyaways throughout the day. Even in humid weather, my edges stayed sleek, and I didn’t have to reapply.
Plus, it didn’t dry out my hair or leave any residue, which can be a real problem with other gels.
It’s enriched with nourishing ingredients like Shea Butter, Peppermint, and Flaxseed Oil, so it’s not just about hold but also caring for your hair. Styling with this gel feels like giving your curls a bit of extra love while keeping everything in place.
Overall, it’s a solid choice if you want a natural, healthy-looking finish that lasts.
Mielle Rosemary & Mint Edge Control Gel, Strong Hold, 2oz
- ✓ Strong hold without flaking
- ✓ Nourishing with natural oils
- ✓ Suitable for all hair types
- ✕ Slightly sticky texture
- ✕ Limited 2oz size
| Hold Strength | Strong hold for lasting style and control |
| Net Volume | 2 ounces (59 milliliters) |
| Infused Ingredients | Biotin, coconut oil, babassu seed oil |
| Suitable Hair Types | Curls, coils, and natural textures |
| Application Method | Apply a small amount to clean, dry edges using fingertips or a brush |
| Key Benefits | Supports healthy hair growth, adds shine, defines styles, and provides moisture |
Most edge controls I’ve tried tend to leave a sticky residue or flatten my curls rather than enhance them. This Mielle Rosemary & Mint Edge Control gel feels different right from the first swipe.
It’s smooth, almost like a thick but silky cream, and it glides onto your edges without tugging. The scent is refreshing—think mint and rosemary—really uplifting as you style.
What immediately stands out is how strong the hold is without making your edges look stiff or flaky. You barely need a dime-sized amount to slick down even the most stubborn baby hairs.
I used it on my curly edges after washing and noticed that it kept everything in place for hours, even in humid weather. Plus, it added a nice shine that made my style look polished but still natural.
Another thing I appreciated is how nourishing it feels. Infused with biotin, coconut oil, and babassu seed oil, it didn’t strip my scalp or leave my edges feeling dry.
Instead, I felt like my hair was getting a little extra love with every use. It’s perfect if you want a product that’s both functional and gentle, especially for delicate curls and coils.
Applying is easy—just a small amount is enough, and you can use your fingertips or a brush. It’s versatile enough for sleek styles or just defining those pesky baby hairs.
The fact that it works on all hair types makes it a real winner if you’re someone with multiple textures in your hair routine.
Overall, this gel delivers strong hold without the crunch, and it leaves hair shiny and healthy-looking. It’s a great addition to your styling arsenal—especially if you struggle with edges that need both control and nourishment.
Edge Control Gel for 4C Hair, Firm Hold, 4.2 Oz
- ✓ Strong, long-lasting hold
- ✓ No white residue or flaking
- ✓ Humidity resistant
- ✕ Slightly sticky if overused
- ✕ Container could be bigger
| Hold Strength | Firm hold capable of maintaining styles all day long |
| Residue | No flaking or white residue, alcohol-free formula |
| Humidity Resistance | Resistant to humidity to prevent edges from lifting |
| Application Type | Suitable for edges, baby hairs, flyaways, braids, locs, twists, and cornrows |
| Ingredients | Contains Aloe and Honey for hydration and frizz control |
| Size | 4.2 ounces (118.3 grams) |
As I unscrewed the lid of the Dolahair Edge Control, I immediately noticed how sleek and lightweight the jar feels in my hand. Its smooth, almost gel-like texture is pleasantly non-greasy and smells subtly sweet, thanks to the honey and aloe blend inside.
Applying it is a breeze. I just dab a small amount onto my edges, and it glides smoothly without any tug or tugging.
The formula spreads evenly and leaves no white residue or flaking, which is such a relief after dealing with sticky or flaky gels before.
What really stands out is how firm the hold is—my baby hairs stay put from morning until late at night. Plus, it’s humidity resistant, so my edges don’t frizz out even on a humid day.
I’ve used it on different styles like braids and slick ponytails, and it keeps everything looking polished without feeling stiff.
The best part? It works well on my 4C hair, which can be tricky to tame.
The organic ingredients make me feel good about using it daily, knowing it’s gentle and nourishing. I also appreciate how versatile it is—whether I need to smooth flyaways or secure my sleek styles, this gel handles both with ease.
Overall, this edge control feels like a reliable secret weapon for busy mornings or special occasions. It’s affordable, long-lasting, and delivers that perfect sleek look without any fuss.
Definitely a go-to for anyone wanting a clean, polished finish that lasts all day.
What Is Edge Control and How Does It Benefit Curly Hair?
Benefits of using edge control include improved confidence in one’s appearance, as well as the ability to create versatile hairstyles that reflect personal style. Additionally, edge control can serve as a protective styling method, helping to minimize breakage by keeping the edges smooth and orderly. This is particularly beneficial for individuals who frequently manipulate their hair through styling or protective styles.
Best practices for using edge control on curly hair involve applying a small amount of product to damp or dry edges for optimal results. It is also advisable to use a soft-bristled brush or toothbrush to smooth down the edges without causing friction. Regular cleansing of the hairline is essential to prevent buildup, and users should look for alcohol-free formulations to minimize potential dryness. Ultimately, selecting the best edge control for curly hair involves considering both the styling needs and the health of the hair.
What Ingredients Should You Look for in Edge Control for Curly Hair?
The best edge control for curly hair should contain ingredients that provide hold, moisture, and nourishment without causing buildup or flaking.
- Natural Oils: Look for ingredients like jojoba oil, argan oil, or coconut oil, which help to moisturize and nourish the hair while providing a soft hold. These oils can also enhance shine and reduce frizz, making them ideal for curly hair.
- Shea Butter: This ingredient is known for its moisturizing properties and ability to provide a flexible hold. Shea butter helps to soften and define curls, preventing them from becoming dry or brittle.
- Aloe Vera: Aloe vera is excellent for hydration and can soothe the scalp while promoting healthy hair growth. Its lightweight texture allows for a natural finish without making hair feel greasy.
- Glycerin: Glycerin is a humectant that draws moisture from the air into the hair, helping to maintain hydration levels. This is particularly beneficial for curly hair, which often tends to be drier than straight hair types.
- Gelatin or Pectin: These ingredients provide a strong hold without the stiffness associated with traditional gels. They can help to define edges while maintaining flexibility, making them suitable for styling curly hair.
- Protein Complexes: Ingredients like hydrolyzed silk or keratin can strengthen the hair and improve elasticity, which is particularly important for curly hair that is prone to breakage. These proteins help to maintain the structure of curls and edges.
- Alcohol-Free Formulas: It’s crucial to choose edge controls that are free from drying alcohols, as these can strip moisture from curly hair. Alcohol-free formulas help to maintain the hair’s natural hydration while providing the desired hold.
Which Ingredients Offer the Best Hold Without Damage?
The best edge control for curly hair offers a strong hold while minimizing damage to the hair.
- Aloe Vera: Known for its moisturizing properties, aloe vera helps to smooth and define edges without causing dryness. It forms a natural barrier that can hold curls in place while promoting hair health.
- Coconut Oil: This oil penetrates the hair shaft to provide nourishment and prevent breakage. When used in edge control products, it helps maintain moisture levels while offering a light hold that doesn’t weigh down curls.
- Beeswax: A natural wax that provides a strong hold, beeswax helps to keep edges in place throughout the day. However, it should be used sparingly to avoid buildup, as it can be difficult to wash out.
- Shea Butter: Rich in vitamins and fatty acids, shea butter offers moisturizing benefits while providing a moderate hold. It helps to soften curls and can enhance the overall texture of the hair.
- Flaxseed Gel: This natural gel is made from boiled flaxseeds and provides a soft yet effective hold. It’s a great alternative for those who prefer to avoid synthetic ingredients while ensuring their edges remain sleek.
- Castor Oil: With its thick consistency, castor oil helps to provide a strong hold while promoting healthy hair growth. It can also help to seal in moisture, making it a beneficial addition to edge control formulations.
Why Are Natural Ingredients Preferred for Curly Hair?
Natural ingredients are preferred for curly hair because they tend to be gentler and more compatible with the unique texture and needs of curls, promoting health and moisture without harsh chemicals.
According to a study published in the Journal of Cosmetic Science, natural oils such as coconut and jojoba have been shown to penetrate the hair shaft better than synthetic alternatives, providing essential nourishment and hydration that curly hair often lacks (Ravindra, 2020). This preference for natural ingredients is particularly significant for individuals with curly hair, as their hair structure makes it more susceptible to dryness and damage.
The causal relationship between the use of natural ingredients and improved hair health can be attributed to the fact that curly hair is generally drier than straight hair due to its shape, which hinders the even distribution of natural oils from the scalp. Natural ingredients like shea butter and aloe vera help to lock in moisture and provide slip, which makes styling easier and reduces breakage. Furthermore, many commercial products contain sulfates and silicones, which can strip the hair of its natural oils and create buildup, leading to frizz and dullness (Smith, 2021). Natural formulations, on the other hand, often incorporate plant-based emollients that enhance curl definition while ensuring that hair remains hydrated and resilient.
What Are the Top Edge Control Products for Curly Hair?
Some of the top edge control products for curly hair include:
- Edge Booster: This product is known for its strong hold and is formulated to keep edges smooth without flaking. It contains nourishing ingredients that help to moisturize and maintain the health of curly hair while providing a long-lasting finish.
- Eco Styler Gel: A popular choice among those with curly hair, Eco Styler Gel offers a firm hold without the use of alcohol, which can be drying. It is enriched with olive oil, which helps to hydrate and protect the hair, making it ideal for defining curls and smoothing edges.
- Style Factor Edge Booster Pomade: This pomade is celebrated for its versatility and high shine finish. It provides a strong hold that lasts all day, and its lightweight formula ensures that it won’t weigh down curls, making it perfect for sleek styles.
- SheaMoisture Jamaican Black Castor Oil Edge Treatment: Formulated with natural ingredients, this edge control provides a strong hold while promoting hair growth and health. The castor oil in the formula helps to nourish and strengthen edges, making it a great choice for those looking to maintain healthy hair.
- Got2b Glued Blasting Freeze Spray: While traditionally used for styling, this spray can also be effective for controlling edges. Its extreme hold ensures that edges stay in place all day, and it can be used on various hair types, including curly hair, for a polished look.
Which Edge Control Products Provide Strong Hold and Moisture?
The best edge control products for curly hair that provide strong hold and moisture include:
- Eco Styler Gel: This product is known for its strong hold and is infused with olive oil, which provides moisture to the hair.
- Edge Booster Pomade: It offers a strong hold and is formulated with a blend of nourishing ingredients that hydrate the edges while maintaining a sleek look.
- Design Essentials Sleek Edge Control: This edge control is designed to provide a firm hold while also moisturizing the hair with its natural ingredients.
- SheaMoisture Coconut & Hibiscus Curling Gel Soufflé: While primarily a curling product, it offers a light hold for edges and is enriched with coconut oil for added moisture.
- Got2b Glued Styling Gel: Known for its extreme hold, this gel also helps in maintaining moisture levels in the hair without flaking.
Eco Styler Gel: This gel has become a favorite among those with curly hair due to its ability to hold edges in place without causing stiffness. The olive oil in the formula not only helps to tame frizz but also adds essential moisture, making it ideal for maintaining healthy edges.
Edge Booster Pomade: This pomade is unique due to its water-based formula, which allows it to provide a strong hold without leaving the hair feeling greasy. It also contains moisture-rich ingredients that nourish the hair and make styling easier, perfect for keeping edges sleek while ensuring hydration.
Design Essentials Sleek Edge Control: This product stands out for its ability to provide a strong, long-lasting hold while also being infused with nourishing oils. It helps to lay down edges smoothly and keeps them hydrated, preventing breakage and dryness often associated with edge control products.
SheaMoisture Coconut & Hibiscus Curling Gel Soufflé: Although primarily intended for curls, this product can effectively be used for edges due to its light hold and moisturizing properties. The coconut oil helps to lock in moisture, making it suitable for those looking to maintain healthy edges while showcasing their curls.
Got2b Glued Styling Gel: Renowned for its extreme hold, this gel is a favorite for slicking down edges, especially for those with thicker hair types. Its formula helps to minimize moisture loss, ensuring that the hair remains hydrated and manageable, even when styled tightly.
What Are the Best Options for Humidity Resistance?
The best edge control options for curly hair focus on providing strong hold while resisting humidity to maintain sleek edges throughout the day.
- Edge Control Gel: This type of product is specifically formulated to provide a strong hold without flaking or becoming overly greasy. Many edge control gels contain ingredients like castor oil or shea butter that help to nourish the hair while keeping it sleek and manageable, making them ideal for high humidity conditions.
- Edge Control Pomade: Pomades offer a different texture than gels, providing a more flexible hold that can be reworked throughout the day. They usually contain waxes and oils that not only help to tame frizz but also create a barrier against moisture, ensuring that your edges stay in place even in humid environments.
- Edge Control Cream: Creams typically offer a lighter hold compared to gels and pomades, making them suitable for those who prefer a more natural look. They often include hydrating ingredients that help to smooth and define curls while resisting humidity, ensuring that your edges look polished without feeling stiff.
- Natural Oils: Oils such as argan or jojoba can be used as a natural alternative for edge control. These oils help to moisturize and smooth the hair while providing a light hold, making them effective in combating humidity without the heaviness of traditional edge control products.
- Mousse: Hair mousses are another option that can provide volume and hold while keeping edges smooth. Formulated to resist humidity, they can create a lightweight layer on the hair that helps to control frizz and maintain style, making them a versatile choice for curly hair.
How Do You Apply Edge Control for Best Results?
To achieve the best results when applying edge control for curly hair, you should follow these key steps:
- Choose the Right Product: Selecting a high-quality edge control specifically formulated for curly hair is essential. Look for products that provide strong hold without flaking or causing buildup.
- Clean and Prepare Your Edges: Before applying edge control, ensure your edges are clean and free of excess oils or products. A gentle cleansing will help the edge control adhere better and perform effectively.
- Use a Small Amount: Applying too much edge control can lead to a stiff or greasy appearance. Start with a small amount, and gradually add more if necessary to achieve your desired hold.
- Apply with a Brush or Toothbrush: For precise application, use a small brush or an old toothbrush. This allows for better control over shaping and smoothing your edges while ensuring even distribution of the product.
- Style and Set: After applying edge control, you can style your hair as desired. For additional hold, consider using a scarf or satin edge wrap to set your edges for 10-15 minutes.
- Maintain with Regular Touch-Ups: Throughout the day, you might need to touch up your edges. Keep a small amount of edge control with you for quick fixes, especially in humid conditions.
What Techniques Can Help Maintain the Look Throughout the Day?
Several techniques can help maintain the look of curly hair throughout the day, especially when using edge control products.
- Choosing the Right Edge Control: Selecting the best edge control for curly hair is crucial as it should provide a strong hold without flaking or causing buildup. Look for products that contain natural ingredients, which can nourish the hair while keeping your edges sleek.
- Applying on Damp Hair: Applying edge control on slightly damp hair can enhance its effectiveness and allow for better adherence. This technique helps to lock in moisture, preventing frizz and keeping the curls defined throughout the day.
- Using a Silk or Satin Scarf: Wrapping your hair with a silk or satin scarf before bed can help preserve your edges and curls. This material reduces friction and helps to maintain the sleek look by minimizing frizz and flyaways.
- Reapplication Throughout the Day: If you want to maintain the look, consider carrying your edge control for quick touch-ups. A small amount can be reapplied to areas that may have puffed up or lost hold, ensuring a polished appearance all day.
- Setting with a Hair Spray: After styling your edges, use a light setting spray to lock everything in place. This additional layer of hold can prevent your edges from reverting back to their natural state due to humidity or movement.
- Using a Toothbrush or Edge Brush: For precise application of edge control, use a toothbrush or an edge brush designed for styling. These tools help to create smooth, defined lines and can easily reach small areas along the hairline.
What Common Mistakes Should You Avoid When Using Edge Control?
When using edge control for curly hair, there are several common mistakes to avoid to achieve the best results.
- Applying too much product: Using an excessive amount of edge control can lead to a greasy or weighed-down appearance. It’s better to start with a small amount and build up if needed, ensuring even distribution without clumping.
- Using the wrong formula: Not all edge controls are suitable for all hair types, especially for curly hair. Look for products specifically formulated for curly textures to avoid dryness or flaking, which can occur with products designed for straight hair.
- Neglecting hair health: Focusing solely on styling without considering the overall health of your hair can lead to damage. Incorporating moisturizing treatments and avoiding heat can help maintain your curls while using edge control.
- Not using a proper brush or tool: Using the wrong brush or tool can affect how well the edge control lays down your hair. Opt for a fine-tooth comb or a small brush designed for edges to achieve a smoother finish.
- Ignoring the setting time: Not allowing the edge control to set properly can result in it lifting or becoming undone throughout the day. After applying the product, give it some time to dry or use a scarf to secure the edges for a longer-lasting hold.
How Can You Extend the Longevity of Your Edge Control?
To extend the longevity of your edge control for curly hair, consider the following methods:
- Choose the Right Product: Selecting a high-quality edge control specifically formulated for curly hair is crucial. Look for products that provide a strong hold without flaking or causing buildup, as this will ensure your edges remain sleek and well-managed throughout the day.
- Apply on Clean Hair: Applying edge control on freshly washed and styled hair can enhance its effectiveness. Clean hair allows the product to adhere better and reduces the chances of product buildup, which can compromise the hold and appearance of your edges.
- Use a Small Amount: Less is often more when it comes to edge control. Using a small amount of product helps avoid a greasy or weighed-down look, allowing for a more natural finish while still providing the desired hold.
- Set with a Scarf or Headband: After applying edge control, securing your edges with a silk or satin scarf or a soft headband can help set the style. This method minimizes frizz and keeps your edges in place, especially in humid conditions.
- Refresh as Needed: Throughout the day, you may need to refresh your edges to maintain their look. A light mist of water or a curl refresher can help reactivate the edge control without needing to reapply a heavy layer of product.
- Protect Your Edges at Night: To maintain your edge control overnight, use a silk or satin pillowcase or wrap your hair in a scarf. This reduces friction and prevents your edges from frizzing or losing their hold while you sleep.