5 Best Keratin Vitamins For Hair Growth

Medically reviewedby Dr. Amy Revene M.B.B.S.
WrittenbyLuat Duong
Last updated

Keratin, a vital protein naturally found in our hair, nails, and skin, plays a crucial role in maintaining the strength, elasticity, and overall health of our hair. 

In recent years, the spotlight has turned to keratin vitamins as a sought-after solution for promoting hair growth and combating hair loss. 

These supplements are often packed with essential nutrients that not only boost keratin production but also nourish the hair from within, leading to stronger, thicker, and more vibrant hair. 

In this blog post, we will explore the five best keratin vitamins for hair growth, delving into their unique benefits and how they can transform your hair care routine. 

Whether you're dealing with thinning hair, seeking to enhance hair growth, or simply aiming for healthier locks, these keratin-rich vitamins could be your gateway to achieving luscious, flourishing hair.

What is keratin? 

keratin vitamins for hair growth

Keratin is a protein and a key structural component in hair, skin, and nails. It's composed of various amino acids and comes in different types, similar to collagen. As we age, our bodies produce less keratin. It is commonly sourced from animal parts like horns, hooves, wool, and feathers, and is often used in dietary supplements and hair care products. 

Keratin supplements and treatments are believed to strengthen hair and improve its appearance.

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Why is keratin important for our hair?

Keratin is important for hair because it acts as the structural building block, providing strength, elasticity, and a protective layer. It helps in reducing hair loss, enhancing hair strength, and improving overall appearance, making hair look healthier, brighter, and smoother. 

Studies have shown that keratin supplements can lead to less hair loss and stronger, more vibrant hair compared to placebos. 

Additionally, hair care products infused with hydrolyzed keratin, like certain shampoos and conditioners, have been found to hydrate hair, seal hair cuticles, and improve hair's brightness and softness. This results in smoother, more manageable hair. 

The effectiveness of keratin is also influenced by various factors including the initial health and natural thickness of one's hair, and the type of keratin treatment used. Keratin treatments work by smoothing down the cells that overlap to form hair strands. 

The hair cuticle absorbs the keratin, leading to hair that appears full and glossy. Furthermore, keratin is known to make curly hair less frizzy, easier to style, and give it a straighter appearance.

5 best keratin vitamins for hair growth

Keratin vitamins are essential for those seeking to enhance their hair growth and strength. These supplements, rich in keratin and other vital nutrients, are specifically formulated to nourish hair from the roots, promoting fuller, healthier, and more vibrant hair. 

Let's explore the five best keratin vitamins that have proven effective for hair growth and overall hair health.

1. Reserveage Beauty Keratin Hair Booster 

keratin vitamins for hair growth

Reserveage Beauty's Keratin Hair Booster is an innovative blend designed to support hair and nail strength. 

This unique formula combines the power of biotin, resveratrol, and keratin to offer a comprehensive solution for those looking to enhance their hair and nail health. The inclusion of zinc further elevates its efficacy, making it more effective than biotin alone. 

This supplement is particularly beneficial for those struggling with hair thinning or weak nails. Its dual action not only adds thickness and shine to hair but also supports healthy hair growth and helps combat hair shedding. 

This makes it an ideal choice for individuals seeking a natural way to boost the health and appearance of their hair.

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2. SOLARAY Collagen Keratin

SOLARAY Collagen Keratin

SOLARAY's Collagen Keratin supplement is a well-rounded solution for those seeking to improve their overall connective tissue health, including hair, skin, and nails.

It's a versatile product that caters to both women and men, featuring a blend of marine collagen (Type I and II) and chicken collagen (Type II). 

This comprehensive formula is designed to support not just the hair and skin but also bones, joints, muscles, and more. The inclusion of collagen in this supplement makes it a convenient way to incorporate this crucial protein into your diet.

In addition to collagen and keratin, this product is enriched with vitamin C, zinc, copper, alpha lipoic acid, and hyaluronic acid. These added ingredients are intended to support healthy collagen synthesis, enhancing the overall effectiveness of the supplement.

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3. Keranique Hair & Scalp Supplements

keratin vitamins for hair growth

Keranique Hair & Scalp Supplements offer a specialized solution for revitalizing hair and scalp from within. Their proprietary complex is designed to support fuller and stronger hair growth. 

With regular intake of two capsules daily for a minimum of three months, 98% of women reported improvement in hair growth and a significant increase in hair coverage on the scalp. 

This rebranded version of Keraviatin maintains the trusted Keranique quality under a new name and packaging, making it a familiar choice for many. The formula is rich in hair-thickening biotin and other vital nutrients like Riboflavin, Zinc, Selenium, enhancing hair follicle nourishment. 

These supplements are not just a hair care product but a form of self-care, with over two million women worldwide having joined Keranique's community, benefitting from effective solutions that deliver tangible results.

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4. OLLY Undeniable Beauty Gummy

OLLY Undeniable Beauty Gummy

OLLY Undeniable Beauty Gummies are crafted for those who seek a delightful way to maintain their hair, nails, and skin health. These gummies are packed with biotin, vitamins C & E, and keratin, all essential for supporting healthy hair and nails and promoting radiant skin. 

Biotin aids in metabolizing fats and proteins, crucial for hair and nail health, while vitamin C plays a pivotal role in collagen production, enhancing skin's strength and youthfulness. 

Keratin further nourishes the hair. The gummies are a convenient, enjoyable form of nutrition, reflecting OLLY's mission to make health and wellness both effective and pleasurable. 

The Grapefruit Glam flavor is naturally delicious, free from artificial colors or flavors, and gluten-free. Each bottle contains a 30-day supply, making it a practical addition to daily wellness routines.

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5. Purity Products MyKeratin ProClinical Advanced Hair Therapy

keratin vitamins for hair growth

MyKeratin ProClinical Advanced Hair Therapy by Purity Products represents a significant advancement in hair care supplements. 

The key ingredient, Cynatine HNS, is a highly absorbable form of keratin that surpasses ordinary keratin in effectiveness. 

A clinical study showcased that the active ingredient reduces hair loss due to brushing, showering, and styling by up to 46.6% and increases hair strength by up to 5.9%. 

This study also revealed improvements in hair brightness, shine, and luster, as well as stronger nails and hydrated skin. 

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A better approach for your overall hair health

keratin vitamins for hair growth

The 3-Step Hair Growth Routine for women is an expertly developed approach to improve hair health, targeting hair thinning, and promoting growth and strength. 

Central to this routine is the Bio-Pilixin Serum, clinically proven to show results in 45 days, reducing hair thinning and encouraging new growth. Its drug-free, vegan formulation is backed by a 93% satisfaction rate in clinical trials.

Key ingredients include Capilia Longa, which demonstrated significant reductions in hair loss and improvements in hair density, aligning with the goals of keratin supplements for hair growth. 

Niacinamide supports this by stimulating keratin production, essential for hair strength. Finally, Aloe Vera aids in scalp recovery, soothing irritation and preventing dryness.

This routine complements the use of keratin vitamins, offering a holistic approach to hair care that encompasses growth, strength, and scalp health.

Hair Growth Routine | For Women
Hair Growth Routine | For Women
Formulated to combat thinning hair & visible scalp


Achieving strong, healthy, and vibrant hair is more accessible than ever with these top keratin vitamin supplements. 

From Reserveage Beauty's Keratin Hair Booster, which fortifies hair and nails, to SOLARAY's Collagen Keratin, offering comprehensive connective tissue support, each product is uniquely formulated to address different aspects of hair health. 

Keranique Hair & Scalp Supplements and OLLY Undeniable Beauty Gummies provide targeted nourishment for hair growth and overall wellness, while Purity Products' MyKeratin ProClinical 

Advanced Hair Therapy brings cutting-edge science to hair care with its highly absorbable keratin.

Additionally, incorporating the 3-Step Hair Growth Routine by Scandinavian Biolabs into your regimen can further enhance these benefits. 

This routine, with its clinically proven Bio-Pilixin Serum, offers a drug-free and vegan solution that has shown impressive results in reducing hair thinning and promoting new growth. 


Do keratin vitamins aid in hair growth?

Yes, keratin vitamins can help with hair growth. Biotin, a common component in keratin supplements, is known for promoting hair growth. It enhances keratin production, which can lead to thicker and stronger hair, and improves overall hair health.

How can I naturally boost keratin production for faster hair growth?

To naturally boost keratin production, focus on a balanced diet rich in specific nutrients. Protein, biotin, and vitamin A are essential for keratin synthesis. Incorporating foods high in these nutrients can help enhance your body's keratin production.


  1. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9675858/ 
  2. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6218806/ 

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Luat Duong

Luat Duong is a Copenhagen-based writer and content strategist specializing in hair loss and health. His work has been featured in MyHealthGuide, The Right Hairstyles, and Woman's Era. He is a graduate of Vaasa University. You can connect with him on LinkedIn.