Keratin: Understanding the Key to Strong and Healthy Hair Growth

Hair with rich in keratin

If you're on a quest to find the most effective hair growth products, chances are you've come across the term "keratin" quite often.

Keratin is a vital protein that plays a significant role in achieving strong, healthy, and beautiful hair.

In this article, we will delve into the world of keratin, exploring its importance, how it works, its benefits, possible downsides, and alternative options.

So, let's get started!

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What Is Keratin?

Keratin is a fibrous structural protein that serves as a fundamental building block for our hair, skin, and nails.

It is naturally present in our hair and plays a crucial role in maintaining its strength and resilience.(1)


Hair rich in keratin

Why Is Keratin Important?

Keratin is essential for maintaining the overall health and appearance of our hair.

As a protein, it acts as a protective barrier, shielding hair from external damage caused by environmental factors and styling products.

It is particularly important for women seeking to stimulate hair growth, as healthy hair is more likely to grow and withstand breakage.(2)


How Does Keratin Work?

Keratin works by forming a protective layer around the hair shaft, sealing in moisture and nutrients.

This protective barrier helps prevent damage and breakage, leading to smoother, more manageable hair.

It also fills in gaps in the hair cuticle, making the hair appear shinier and less frizzy.


What Are The Benefits Of Keratin?

Using keratin-infused hair products or undergoing keratin treatments can offer several benefits:

  • Strengthening Of Hair: Keratin reinforces the hair structure, reducing brittleness and breakage.

  • Smoothing Effect: Keratin treatments can lead to smoother and more manageable hair, making styling easier.

  • Frizz Reduction: By sealing the hair cuticle, keratin helps minimize frizz, especially in humid conditions.

  • Enhanced Shine: Keratin imparts a natural shine to the hair, giving it a healthy and lustrous appearance.

  • Long-lasting Results: Keratin treatments can provide results that last for several weeks, depending on individual hair care routines.
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Are There Any Downsides to Keratin?

While keratin treatments can be beneficial, it's essential to be aware of potential downsides:

Formaldehyde Concerns

Some keratin treatments contain formaldehyde, which can be harmful if not used properly.

Always choose formaldehyde-free products and consult a professional stylist for safer alternatives.

Cost And Time Investment

Keratin treatments can be relatively expensive and time-consuming, requiring a visit to a professional salon.

Temporary Nature

Keratin treatments are not permanent, and the effects will gradually fade over time.


What Are The Alternatives To Keratin?

If you are considering alternatives to keratin treatments, there are a few options to explore:

Protein-based Hair Products

Look for hair products enriched with other proteins like silk, wheat, or soy, which can provide similar strengthening benefits.

Natural Oils

Certain natural oils, such as argan oil and coconut oil, can help nourish and protect the hair, reducing damage and promoting healthy growth.

Biotin Supplements

Biotin, a B-vitamin, is known to support hair growth when taken as a supplement.

Amino Acid Treatments

Amino acids are building blocks of proteins and can be used in hair treatments to improve its overall health and appearance.


What is the Difference Between Brazilian and Rebond?

Both Brazilian treatments and rebonding are popular hair treatments that aim to straighten and smoothen the hair.

However, there are distinct differences between the two:

Brazilian Treatment

  • Also known as Brazilian Blowout or Brazilian Keratin Treatment (BKT).

  • Uses keratin-infused products to relax curls, reduce frizz, and enhance shine.

  • Results in smoother, more manageable hair with a natural-looking texture.

  • Does not permanently straighten the hair and allows for some curl or wave retention.

  • Requires a waiting period before washing the hair (typically 24 to 72 hours).

  • Suitable for various hair types, including curly, frizzy, and damaged hair.


  • Also referred to as permanent straightening or Japanese straightening.

  • Uses chemical relaxers to break and reform the hair bonds, resulting in straightened hair.

  • Provides long-lasting, straightened results, even after washing the hair.

  • Requires strict aftercare and limited styling options immediately after the treatment.

  • Not recommended for heavily damaged or previously chemically treated hair.

  • Requires new hair growth to be treated again to maintain the straightened results.

What Does Keratin Do To Your Hair?

Keratin offers several benefits to your hair, helping to improve its overall health and appearance:

  • Strengthens the hair structure, reducing brittleness and breakage.

  • Forms a protective barrier, shielding the hair from external damage caused by heat, styling, and environmental factors.

  • Seals the hair cuticle, smoothing the surface and reducing frizz.

  • Enhances shine, giving the hair a healthy and lustrous appearance.

  • Restores moisture and nourishment to dry and damaged hair.

  • Improves manageability, making styling easier and reducing tangling.

    How Do You Get Keratin?

    You can introduce keratin into your hair through various methods:

    Keratin Treatments

    • Professional keratin treatments are typically performed in salons by trained stylists.

    • The treatment involves applying a keratin-infused solution to the hair, followed by heat to seal the keratin into the hair shaft.

    • Results in smoother, frizz-free hair with improved manageability.

    Keratin-Infused Hair Products

    • Many hair care products, such as shampoos, conditioners, and serums, contain keratin as an ingredient.

    • These products can be used regularly to provide ongoing nourishment and protection to your hair.

    Natural Food Sources

    • Consuming a balanced diet rich in protein can help support the production of keratin in your body.

    • Foods like eggs, meat, fish, nuts, and seeds are excellent sources of protein.
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    Is It Okay To Use Keratin Everyday?

    Using keratin-based products daily may not be necessary or beneficial for everyone.

    Here are some factors to consider:

    Keratin Treatments

    Professional keratin treatments are designed to last for several weeks, providing long-lasting results.

    Using them excessively can lead to product buildup and potential hair damage.

    It's recommended to follow the instructions provided by the stylist and undergo treatments at appropriate intervals.

    Keratin-Infused Products

    Using keratin-infused products, such as shampoos and conditioners, on a regular basis can help maintain the benefits of keratin between treatments.

    However, it's important to consider your hair type and specific product recommendations.

    Overuse of certain products can weigh down the hair or cause buildup, so it's best to find a balance that works for your hair's needs.

    How Can I Get Keratin Naturally?

    While keratin is a naturally occurring protein in our bodies, there are ways to support its production naturally:


    Consume a balanced diet rich in protein, including foods like eggs, fish, lean meat, beans, nuts, and seeds.

    These protein sources provide the building blocks necessary for keratin production.

    Vitamins and Minerals

    Ensure you have adequate intake of essential vitamins and minerals, such as biotin, zinc, and vitamin A, which play a role in hair health and keratin production.

    Consider incorporating foods like spinach, sweet potatoes, avocados, and citrus fruits into your diet.


    Drink plenty of water to keep your hair and scalp hydrated, as adequate hydration is crucial for optimal hair growth and keratin synthesis.

    Gentle Hair Care

    Avoid excessive heat styling, harsh chemical treatments, and aggressive brushing that can damage the hair and inhibit keratin production.

    Opt for gentle hair care practices, including using mild shampoos and conditioners and avoiding tight hairstyles that pull on the hair.

    What Is The History Of Keratin?

    Keratin has a rich history in the world of hair care and beauty.

    Here are some key points highlighting the historical significance of keratin:

    Ancient Origins

    The use of keratin in hair care dates back to ancient civilizations.

    Historical records indicate that ancient Egyptians and Greeks used various natural substances, including animal horns and hooves, rich in keratin, to improve hair texture and appearance.

    Scientific Discoveries

    In the 19th century, scientific advancements led to a deeper understanding of keratin's role in hair structure and growth.

    The discovery of amino acids, the building blocks of proteins like keratin, paved the way for further research and innovations in hair care.(3)

    Development of Keratin Treatments

    The development of keratin treatments, such as the Brazilian Blowout, in the early 2000s revolutionized the hair care industry.

    These treatments gained popularity due to their ability to transform frizzy, unruly hair into smoother, more manageable locks.


    What Is The Current Environment Of Keratin?

    The current environment surrounding keratin in the hair care industry is dynamic and ever-evolving.

    Here's an overview of the present state of keratin:

    Product Innovation

    Hair care companies continue to invest in research and development to improve keratin treatments and products.

    This includes the formulation of formaldehyde-free options and the incorporation of advanced technologies for better results and reduced side effects.(4)

    Growing Demand

    The demand for keratin treatments and keratin-infused products remains high.

    Many individuals, particularly those with frizzy or damaged hair, are seeking effective solutions to achieve smoother, more manageable hair.

    Industry Standards

    The industry has established standards and guidelines for the safe and effective use of keratin treatments.

    Regulatory bodies and professional organizations work together to ensure the safety and quality of keratin products and the practices followed by stylists.

    What Is The Future Of Keratin?

    The future of keratin holds exciting possibilities for the hair care industry and individuals seeking to improve their hair health.

    Here are some potential trends and developments to watch for:

    Advancements in Formulations

    Continued research and technological advancements may lead to even more innovative and effective keratin treatments and products.

    These advancements could include longer-lasting results, enhanced customization for different hair types, and improved environmental sustainability.(5)

    Integration of Natural Ingredients

    With a growing emphasis on natural and clean beauty, the future may see the incorporation of more natural ingredients alongside keratin.

    This could involve combining keratin with plant extracts, oils, and other beneficial components for a holistic approach to hair care.

    Focus on Scalp Health

    The future of keratin may involve a greater emphasis on scalp health.

    Scalp care is recognized as a crucial aspect of overall hair health, and future keratin treatments and products may target scalp conditions and promote a healthy environment for hair growth.


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      Final Thoughts On Keratin

      In conclusion, keratin plays a vital role in maintaining healthy and beautiful hair.

      By understanding what keratin is, how it works, and its benefits, you can make informed decisions about incorporating keratin treatments and products into your hair care routine.

      Whether you're looking to reduce frizz, improve manageability, or enhance the overall health of your hair, keratin can be a valuable ally in your hair growth journey.

      At Fully Vital, we understand the importance of nurturing your hair and promoting its longevity. We offer a variety of hair growth products designed to stop the aging of your hair, helping you establish a healthier relationship with your locks.

      Our range of products is formulated with care, combining the power of science and nature to deliver effective results.

      Take the next step towards healthier hair by exploring our range of hair growth products.

      Discover the transformative benefits of incorporating keratin into your hair care routine and unlock the full potential of your locks.


      Frequently Asked Questions About Keratin

      Can keratin treatments help with hair growth?

      While keratin treatments can't directly stimulate hair growth, they can contribute to healthier hair, which is less prone to breakage, leading to the appearance of improved growth.

      Can I apply keratin treatments at home?

      It is generally recommended to undergo keratin treatments at a professional salon.

      These treatments require expertise and specific application techniques for optimal results.


      How often should I get a keratin treatment?

      The frequency of keratin treatments depends on individual hair type and the specific treatment used.

      Typically, treatments can last between 3 to 6 months, and it's advisable to consult with a stylist for personalized recommendations.


      Can keratin treatments be used on all hair types?

      Keratin treatments are suitable for most hair types, including curly, frizzy, and chemically treated hair.

      However, it's best to consult with a professional stylist to determine the most appropriate treatment for your specific hair needs.


      Can keratin treatments cause hair damage?

      When performed correctly by a professional stylist, keratin treatments should not cause hair damage.

      However, it is crucial to choose formaldehyde-free products and follow proper aftercare instructions.


      What are the side effects of keratin?

      Keratin treatments, when performed correctly and using formaldehyde-free products, generally have minimal side effects.

      However, it's important to be aware of the following considerations:

      • Potential Allergic Reactions: Some individuals may experience allergic reactions to certain ingredients in keratin products.
        It's advisable to do a patch test before undergoing a treatment or using new keratin-infused products.

      • Eye and Respiratory Irritation: During keratin treatments, the fumes released from certain products can cause eye and respiratory irritation.
        It is crucial to undergo treatments in well-ventilated areas or with proper ventilation systems.

      • Hair Texture Changes: Keratin treatments can alter the texture of the hair. While the goal is to smooth and reduce frizz, some individuals may find that their hair becomes too straight or loses volume.

      Always consult with a professional stylist and discuss any concerns or allergies you may have before undergoing a keratin treatment.


      How long should keratin last?

      The duration of keratin treatments can vary depending on various factors, including hair type, hair care routine, and the specific treatment used.

      Generally, the effects of keratin treatments can last between 3 to 6 months.

      However, it's important to note that the longevity of the treatment also depends on individual factors and how well you maintain your hair after the treatment.

      To maximize the longevity of the treatment, follow the stylist's aftercare instructions, use recommended hair care products, and avoid practices that can prematurely strip the keratin from the hair, such as excessive washing or using harsh hair products.


      Does keratin help hair grow?

      Keratin treatments and products are not designed specifically to promote hair growth.

      However, by strengthening and nourishing the hair, keratin can contribute to healthier hair, which is less prone to breakage.

      This, in turn, can create the appearance of improved hair growth.

      To support hair growth, it's important to focus on overall hair and scalp health, maintain a balanced diet, and incorporate other practices known to promote hair growth, such as scalp massages and using targeted hair growth products.


      What causes a lot of keratin?

      Keratin is naturally produced by our bodies.

      However, certain factors can lead to an excess buildup of keratin, particularly in the hair follicles.

      This condition is known as keratosis pilaris or "chicken skin." Some potential causes include:

      • Genetics: Keratosis pilaris can be hereditary, with certain individuals more prone to the condition.

      • Dry Skin: Dry skin can contribute to keratin buildup. Ensuring proper hydration and moisturizing the skin can help manage the condition.

      • Blockage of Hair Follicles: When dead skin cells or other debris block the hair follicles, it can lead to keratin buildup and the formation of small, rough bumps.

      Keratosis pilaris is generally harmless but can be managed through proper skincare, exfoliation, and moisturizing routines.

      If you have concerns about excessive keratin buildup or related skin conditions, consult with a dermatologist for a proper diagnosis and treatment plan.


      How much keratin per day?

      There is no specific recommended daily intake of keratin, as it is a protein produced by our bodies.

      Instead of focusing on keratin consumption, it's more important to maintain a balanced diet that includes adequate protein sources.

      This provides the necessary amino acids to support keratin production naturally.

      Ensure your diet includes a variety of protein-rich foods, such as lean meats, fish, eggs, dairy products, legumes, and nuts. These foods supply the building blocks required for the synthesis of keratin and other essential proteins in your body.


      1. The Editors of Encyclopaedia Britannica. (2019). Keratin | biology. In Encyclopædia Britannica.
      2. Basit, A., asghar, F., Sadaf, S., & Akhtar, M. W. (2018). Health improvement of human hair and their reshaping using recombinant keratin K31. Biotechnology Reports, 20, e00288.
      3. Keratin: Protein, Structure, Benefits, Uses. Hair Keratin Protein. (n.d.). Retrieved July 5, 2023, from
      4. Gavazzoni Dias, M. F. (2015). Hair cosmetics: An overview. International Journal of Trichology, 7(1), 2.
      5. What You Need to Know About Keratin Treatments. (2022, November 15). Cleveland Clinic.