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keratin hair extensions pros and cons

Alove Hair
keratin hair extensions pros and cons

Keratin hair extensions have become increasingly popular among those looking to enhance their natural hair with added length, volume, or both. These extensions are made from real human hair and are attached to your natural hair using a keratin-based adhesive. While they offer many benefits, there are also some drawbacks to consider. Here, we explore the pros and cons of keratin hair extensions to help you make an informed decision.

What is Keratin hair extension?

Keratin hair extensions are a popular type of hair extension that uses a keratin-based adhesive to attach the extensions to your natural hair. Keratin is a protein that is naturally found in human hair, which makes this type of extension particularly compatible with your own hair structure. Here's a detailed overview of keratin hair extensions:

What Are Keratin Hair Extensions?

1. CompositionKeratin hair extensions are made from real human hair, which provides a natural look and feel. The extensions are attached using a keratin-based adhesive, which is gentle on your natural hair because it mimics the natural protein structure of hair.

2. Application ProcessThe application process involves attaching small strands of the extension hair to your natural hair using the keratin adhesive. A specialized heating tool is used to melt the keratin, allowing it to bond securely to your hair. The bonds are typically very small and discreet, making them almost invisible when applied correctly.

3. Types of BondsKeratin hair extensions come in various forms, including:

  • Pre-bonded Keratin Extensions: These have keratin tips that are pre-applied to the extensions. They are attached to your hair using the heating tool.

  • Fusion Extensions: A type of pre-bonded extension where the keratin bond is melted and fused with your natural hair.


Keratin hair extensions come in various specifications to cater to different hair types, lengths, and desired styles. Here are some key specifications and typical values for keratin hair extensions:


Keratin hair extensions are available in a wide range of lengths to match different preferences:

  • Short: 10 inches (25 cm)

  • Medium: 14 inches (35 cm), 16 inches (40 cm), 18 inches (45 cm)

  • Long: 20 inches (50 cm), 22 inches (55 cm), 24 inches (60 cm)

  • Extra Long: 26 inches (65 cm), 28 inches (70 cm), 30 inches (75 cm)


The weight of keratin hair extensions varies depending on the length and the density of the hair:

  • 0.5 gram per strand

  • 0.8 gram per strand

  • 1 gram per strand

  • 1.2 grams per strand


Keratin hair extensions come in different textures to match natural hair types:

  • Straight

  • Wavy

  • Curly

  • Kinky Curly


Keratin hair extensions are available in a wide range of colors to blend seamlessly with natural hair:

  • Natural Shades: Black, Dark Brown, Medium Brown, Light Brown, Blonde

  • Fashion Shades: Red, Blue, Pink, Purple, Green

  • Ombre and Balayage: Combinations of shades for a gradient effect

Quality Grade

The quality of keratin hair extensions is often categorized to indicate the grade of the hair used:

  • Remy Hair: Hair cuticles are aligned in the same direction, reducing tangling and matting

  • Non-Remy Hair: Hair cuticles may not be aligned, typically lower in quality

  • Virgin Hair: Hair that has not been chemically processed, offering the highest quality

Bond Size

The size of the keratin bond is important for discreet attachment and comfort:

  • Standard Bond: Approximately 0.5 cm in width

  • Mini Bond: Smaller and more discreet, typically around 0.3 cm in width

Bundle Size

Keratin hair extensions are typically sold in bundles, with each bundle containing a specific number of strands:

  • 50 strands per bundle

  • 100 strands per bundle

  • 200 strands per bundle

Keratin Bond Types

Different types of keratin bonds are used to suit various application methods:

  • U-Tip (Nail Tip): Pre-bonded with U-shaped keratin tips

  • I-Tip (Stick Tip): Pre-bonded with I-shaped keratin tips, used for micro ring or micro link application

  • Flat Tip: Pre-bonded with flat keratin tips for a more discreet and comfortable attachment

Example Specification

  • Length: 18 inches (45 cm)

  • Weight: 1 gram per strand

  • Texture: Straight

  • Color: Natural Black (1B)

  • Quality Grade: Remy Hair

  • Bond Size: Standard Bond (0.5 cm)

  • Bundle Size: 100 strands per bundle

  • Keratin Bond Type: U-Tip

These specifications can vary based on the manufacturer and the specific needs of the client. When selecting keratin hair extensions, it's important to consider these factors to ensure a perfect match with your natural hair and desired look.

Benefits of Keratin Hair Extensions

1. Natural AppearanceBecause they are made from real human hair and use a keratin adhesive, these extensions blend seamlessly with your natural hair, offering a very natural look.

2. DurabilityWith proper care, keratin hair extensions can last several months. This makes them a long-term solution for those looking to add length or volume to their hair.

3. Styling VersatilityKeratin hair extensions can be styled just like your natural hair. You can curl, straighten, and even color them, provided you follow the appropriate care instructions.

4. Less DamageThe keratin adhesive is gentle on natural hair, reducing the risk of damage compared to other types of hair extensions that use harsher adhesives or attachment methods.

Considerations and Maintenance

1. Professional ApplicationKeratin hair extensions require professional application to ensure they are attached correctly and to prevent damage to your natural hair. This can be time-consuming and costly.

2. Care RequirementsTo maintain the longevity and appearance of your keratin hair extensions, you must follow specific care guidelines. This includes using sulfate-free shampoos, avoiding excessive heat, and being gentle when brushing and washing your hair.

3. Removal ProcessRemoval of keratin hair extensions should also be done by a professional to avoid damaging your natural hair. The keratin bonds are dissolved using a specialized solution, allowing the extensions to be removed without causing harm to your hair.


Keratin hair extensions are a highly effective way to enhance the length and volume of your hair while maintaining a natural look. Their composition and application method make them a gentle and durable option. However, they do require professional application and maintenance, as well as careful handling to ensure they remain in good condition. By understanding what keratin hair extensions are and how to care for them, you can enjoy the benefits they offer and achieve the hair transformation you desire.

The Pros and Cons of Keratin Hair Extensions

Pros of Keratin Hair Extensions

1. Natural Look and FeelKeratin hair extensions blend seamlessly with your natural hair, giving a natural look and feel. Because they are made from human hair, they can be styled, curled, and colored just like your own hair, providing versatility and a more realistic appearance.

2. Long-LastingWhen properly maintained, keratin hair extensions can last for several months. This longevity makes them a cost-effective option for those who want a long-term solution to add volume and length to their hair.

3. Gentle on Natural HairKeratin bonds are less damaging to natural hair compared to other types of extensions like glue-in or tape-in. The keratin adhesive mimics the natural protein found in hair, reducing the risk of damage or breakage.

4. Comfortable to WearKeratin hair extensions are known for being lightweight and comfortable to wear. The individual bonds are small and lie flat against the scalp, making them less noticeable and easier to manage on a daily basis.

5. CustomizableKeratin extensions can be customized to match the color, texture, and density of your natural hair. This customization ensures a perfect blend and a more natural look.

Cons of Keratin Hair Extensions

1. Time-Consuming ApplicationThe process of applying keratin hair extensions can be time-consuming, often taking several hours. This lengthy procedure can be inconvenient for those with busy schedules.

2. Requires Professional Application and RemovalKeratin hair extensions should be applied and removed by a professional to avoid damage to your natural hair. This requirement adds to the overall cost and necessitates regular salon visits for maintenance.

3. Potential for Damage with Improper CareWhile keratin extensions are gentle on natural hair, improper care can lead to damage. Using the wrong products or applying excessive heat can weaken the bonds, causing the extensions to fall out prematurely or damage your natural hair.

4. ExpensiveKeratin hair extensions can be expensive, especially when considering the cost of professional application and regular maintenance. The initial investment and ongoing upkeep may not be affordable for everyone.

5. Special Care RequirementsKeratin hair extensions require specific care to maintain their appearance and longevity. This includes using sulfate-free shampoos, avoiding excessive heat, and following a strict hair care routine. These additional steps can be time-consuming and may require changing your usual hair care products.


Keratin hair extensions offer a range of benefits, including a natural look, long-lasting results, and a gentle application process. However, they also come with drawbacks such as a lengthy application time, the need for professional maintenance, potential damage with improper care, and higher costs. By weighing these pros and cons, you can determine if keratin hair extensions are the right choice for you. If you decide to proceed, ensure you follow the recommended care guidelines and work with a professional stylist to enjoy the full benefits of these versatile extensions.

When choosing between keratin bond hair extensions and tape-in hair extensions, it's important to understand the pros and cons of each method to determine which is best suited to your needs. Here is a detailed comparison:

Keratin Bond Hair Extensions


  1. Natural Appearance: Keratin bonds are small and discreet, making the extensions blend seamlessly with natural hair.

  2. Long-Lasting: These extensions can last up to 3-6 months with proper care.

  3. Versatility: Keratin extensions can be styled, colored, and treated like natural hair.

  4. Secure Attachment: The keratin bond provides a strong and durable attachment, reducing the risk of extensions slipping out.

  5. Customization: Individual strands allow for precise placement and blending, providing a more natural look.


  1. Time-Consuming Application: The process of applying keratin extensions can take several hours.

  2. Professional Application Required: Must be applied and removed by a professional to avoid damage.

  3. Potential for Damage: Improper care or removal can cause damage to natural hair.

  4. Higher Cost: The initial application and maintenance can be expensive.

  5. Special Care Needed: Requires specific hair care products and routines to maintain the bonds.

Tape-In Hair Extensions


  1. Quick Application: The application process is relatively quick, often taking less than an hour.

  2. Reusable: Tape-in extensions can be reused multiple times with proper care and re-taping.

  3. Less Expensive: Generally more affordable than keratin bonds, both in terms of initial cost and maintenance.

  4. Less Damage: When applied and removed correctly, tape-in extensions are less likely to damage natural hair.

  5. Comfortable: The flat wefts lie close to the scalp, making them comfortable and discreet.


  1. Shorter Lifespan: Typically last 6-8 weeks before needing adjustment or reapplication.

  2. Visible Tape: The tape may become visible as the natural hair grows out.

  3. Limited Styling: High heat or oil-based products can weaken the adhesive, limiting styling options.

  4. Frequent Maintenance: Requires more frequent visits to the salon for reapplication and adjustments.

  5. Bulkier Attachment: The tape wefts can feel bulkier compared to the small keratin bonds.

Comparison Overview

FeatureKeratin Bond Hair ExtensionsTape-In Hair Extensions
Application TimeSeveral hoursLess than an hour
Longevity3-6 months6-8 weeks
Damage RiskModerate, if not cared for properlyLower, if applied and removed correctly
Styling FlexibilityHighLimited due to adhesive sensitivity
MaintenanceLess frequent but more intensiveMore frequent but quicker
ComfortLightweight and comfortableFlat but can feel bulky
ReusabilitySingle useReusable with re-taping


Both keratin bond and tape-in hair extensions have their own advantages and drawbacks.

  • Keratin Bond Hair Extensions are ideal for those looking for a long-lasting, natural-looking solution with high styling versatility, provided they are willing to invest in professional application and maintenance.

  • Tape-In Hair Extensions are suitable for those who prefer a quicker, more affordable option that can be reused and requires less initial commitment, though it demands more frequent maintenance.

Your choice will depend on your specific needs, lifestyle, and budget. Consulting with a professional stylist can also help determine which method is best for your hair type and desired outcome.

Detailed Guide to Choosing High-Quality Keratin Hair Extensions

Choosing high-quality Keratin hair extensions involves considering various factors, including the material of the extensions, manufacturing process, supplier reputation, and more. Here is a detailed guide to help you select the best Keratin hair extensions:

1. Material of the Extensions

Human Hair: High-quality Keratin hair extensions are usually made from 100% human hair. These extensions have a natural look and feel and can be dyed, permed, and styled just like your own hair.

Remy Hair: Remy hair is a premium type of human hair with cuticles aligned in the same direction, preventing tangling and matting, thus making the extensions more durable.

2. Manufacturing Process

Keratin Quality: High-quality Keratin hair extensions use pure keratin glue, which should have excellent adhesive strength and durability, ensuring a secure attachment to your natural hair without causing damage.

No Chemical Treatment: Choose extensions that have not been chemically treated. Such extensions are healthier and have a longer lifespan.

3. Color and Texture Selection

Color Matching: The color of the extensions should closely match your natural hair color for a seamless blend. High-quality extensions come in a wide range of colors, including natural and fashion shades.

Texture Selection: Choose extensions that match the texture of your natural hair (straight, wavy, curly, etc.) to ensure they blend perfectly with your own hair.

4. Supplier Reputation

Brand Reputation: Choose brands or suppliers with a good reputation and positive reviews. Read customer feedback and recommendations to understand the product quality and after-sales service.

Sample Testing: Many reputable suppliers offer samples. Testing samples can help you evaluate the quality and durability of the extensions.

5. Specifications of the Extensions

Length Selection: Choose the length of the extensions based on your personal needs. High-quality Keratin hair extensions come in various lengths, from short to extra-long.

Weight and Thickness: The weight and thickness of the extensions are also crucial. Ensure that the extensions have an appropriate weight and even thickness to blend well with your natural hair.

6. After-Sales Service

Return Policy: Ensure the supplier offers a reasonable return policy in case the product does not meet your expectations.

Customer Support: Choose suppliers that provide excellent customer support, capable of answering your questions and offering professional advice.


Choosing high-quality Keratin hair extensions requires careful consideration of the material, manufacturing process, color and texture, supplier reputation, specifications, and after-sales service. Here are the steps summarized:

  1. Choose 100% human hair and Remy hair.

  2. Ensure the keratin glue is of high quality and free from chemical treatments.

  3. Select extensions that match your natural hair color and texture.

  4. Choose reputable brands or suppliers and read customer reviews.

  5. Select the appropriate length and weight based on your needs.

  6. Ensure the supplier offers a reasonable return policy and good customer support.

By following these steps, you can find high-quality Keratin hair extensions that achieve the desired look.

Alove Hair - Leading Keratin Hair Extensions Manufacturer from China

Alove Hair is a premier Keratin Hair Extensions manufacturer based in China, renowned for its high-quality products and exceptional service. With our own state-of-the-art factory, we are equipped to handle large-scale production and maintain substantial inventory, ensuring rapid delivery to meet your needs.

Our extensive stock and efficient logistics enable us to provide fast shipping, making Alove Hair a reliable partner for all your Keratin Hair Extensions needs. We offer comprehensive wholesale services, catering to businesses of all sizes. Our Keratin Hair Extensions are crafted from 100% human hair, ensuring a natural look and feel, and are available in a wide range of colors and textures to suit any preference.

At Alove Hair, we pride ourselves on our commitment to quality and customer satisfaction. Partner with us and experience the best in Keratin Hair Extensions.

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