How Does Silica Help Promote Hair Growth?

Get a deeper understanding of the workings of this chemical compound on your hair.

Medically reviewed by Dr. Shruti Chavan, MBBS Dr. Shruti Chavan Dr. Shruti ChavanMBBS linkedin_iconinsta_icon
Written by , MA (English Literature) Ramona Sinha MA (English Literature) linkedin_icon Experience: 11 years
Edited by , BTech Anjali Sayee BTech linkedin_icon Experience: 7 years
Fact-checked by , MA (English Literature) Swathi E MA (English Literature) linkedin_icon Experience: 3 years
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Silica is the newest member from a long list of hair care ingredients to enter the spotlight. Much has been said about the benefits of using silica for hair growth treatment. But is there any truth to them? Or are they mere claims? We are here to get to the bottom of these questions. Silica is said to strengthen and fortify hair, increase its shine, and decrease hair loss. Keep reading to know if there is any weight to these claims.

protip_icon Know Your Ingredient: Silica

What Is It?
A colorless, naturally occurring trace mineral found in plants and whole grains, formed from the combination of silica and oxygen.

What Are Its Benefits?
It prevents hair breakage, improves hair tensile strength, and stimulates hair growth.

Who Can Use It?
Anyone can take it except people who have respiratory issues.

How Often?
As prescribed by your physician.

Consult your doctor before adding silica supplements to your diet.

What Is Silica?

Silica in a glass bowl
Image: Shutterstock

Silicon dioxide, also known as silica, is an oxide of silicon, a non-metallic chemical element. Silica combines silicon and oxygen and is primarily found in green leafy plants and available in hair growth oil, gel, and supplement forms.

Our body needs silicon in trace amounts for collagen synthesis and improving skin strength and elasticity. Silicon helps prevent hair fall and maintains hair shine (1). No scientific evidence supports the claim that silica can promote hair growth. However, silica supplements may help improve your hair health. In the next section, lets take a look at the benefits of silica.

Benefits Of Using Silica For Hair

1. May Prevent Hair Loss

Silica may prevent hair loss
Image: Shutterstock

Silica may not directly influence your hair health. However, studies suggest that silicon content in the hair is crucial for maintaining its strength and may prevent hair loss (1). You may take silica hair growth supplements to improve the silicon content in your hair and prevent hair thinning.

2. Improves Tensile Strength

Silica improves hair structure and tensile strength.
Image: Shutterstock

A study demonstrated that choline-stabilized orthosilicic acid (ch-OSA) supplements improved hair structure and tensile strength in women with fine hair. Orthosilicic acid is an amorphous form of silica and improves hair elasticity and break load, resulting in thicker hair (2).

protip_icon Quick Tip
Apart from dull and brittle hair, the appearance of wrinkles and sagging skin due to loss of firmness and elasticity are some symptoms of silica deficiency.

Now that you know the benefits of silica supplements for hair, let’s discuss the right way to use silica supplements.

How To Use Silica Supplements

Woman taking prescribed oral silica supplement for hair
Image: Shutterstock

The best way to use silica for maintaining hair health is by taking oral supplements. Silicon or silicon dioxide supplements are available in pill, powder, and gel forms. You may consume any of them. However, before taking supplements, consult a doctor to determine if your body has silicon deficiency. Do not self-medicate.

You will also find hair growth shampoos, conditioners, and other hair products containing silicon. However, the efficacy of topical silicon is not studied. You may or may not get any results after using silicon-rich hair products.

The supplements will work only in the right dosage. In the next section, find out how much silica supplement you may consume.

Dosage Recommendation For Silica Supplements

Silica supplements are used with other hair vitamins for managing issues related to the skin, joints, bones, and hair (1). The recommended dosage may differ, depending on the issues.

protip_icon Quick Tip
As most silica supplements are not approved by the FDA, it is recommended to consult a doctor before consuming them.

Therefore, consult a doctor for the right dosage.

If you are wondering if silica supplements have any health hazards, scroll down and read the next section.

Is Silicon Dioxide Safe To Consume?

Woman consulting doctor's to know if silica consumption is safe.
Image: Shutterstock

There is no evidence that oral silica can cause any health hazard or side effects. The FDA considers silicon dioxide or silica as a safe hair growth food additive (3). However, the European Food Safety Authority (EFSA) raised concern over the use of nano silicon dioxide smaller than the nano threshold of 100 nm (4). EFSA further urged the European Union to regulate the use of nano silicon dioxide until further research is conducted to evaluate its health implications.

To avoid any side effects, consult a doctor before using silica supplements.

Infographic: The Ultimate Guide To Using Silica For Hair Growth

Silica is a non-metallic ingredient popularly used in hair care products. Research suggests that it may reduce hair loss and improve your hair health. Check out thE infographic below to learn about its benefits and how to incorporate it into your hair care routine.

the ultimate guide to silica for hair growth (infographic)

Illustration: StyleCraze Design Team

Silica cannot promote hair growth. However, silica supplements may improve your hair quality, strengthen the strands, and reduce breakage and hair fall. Therefore, if you have fragile and brittle hair, you may try consuming silica for hair health. You may also find silicon dioxide (silica) in shampoos, conditioners, serums, and other hair care products, but topical silica does not produce effective results. Consult your doctor to determine the right dosage and supplement frequency, and follow the hair growth tips or instructions to get the desired results. Remember that silica supplements work when taken in the right dosage.

Frequently Asked Questions

Is silica or biotin better for hair growth?

In hair growth products, biotin is better than silica. However, you can take both after consulting your doctor to get the best results.

Is silica safe in hair products?

Yes, silica is safe in hair products.

Is silica the same as silicone?

No, silica is a combination of silicon and oxygen while silicone is a synthetic polymer of silicon with carbon and oxygen.

Which is better: silica or collagen?

While collagen provides the framework of bones, silica helps produce collagen. Both are equally important and have their own benefits.

Can you take silica everyday?

Yes, you can take silica everyday. However, consult a doctor to determine the dosage.

Is silica toxic?

Silica is usually non-toxic. However, breathing in small crystalline silica particles may cause a lung disease called silicosis. Speak to your doctor for more information.

How can I get silica naturally?

Consuming bananas, leafy greens, green beans, cereal, brown rice, lentils, and beer may help you get silica naturally.

Key Takeaways

  • Silica is aids collagen synthesis and improves skin elasticity and strength.
  • It may prevent hair loss and thinning and strengthen the hair structure.
  • You can maintain your hair health by using silicon or silicon dioxide oral supplements, which are found in oil, gel, and pill forms.
  • You should consult a doctor to know the appropriate amount of silica you should consume.
Silica for Hair Growth

Image: Stable Diffusion/StyleCraze Design Team

Discover the amazing benefits of silica for hair loss, dry skin, brittle nails, and bone health. Learn how to take it and see the results for yourself! Check it out!


Articles on StyleCraze are backed by verified information from peer-reviewed and academic research papers, reputed organizations, research institutions, and medical associations to ensure accuracy and relevance. Read our editorial policy to learn more.

  1. Use of silicon for skin and hair care: an approach of chemical forms available and efficacy
  2. Effect of oral intake of choline-stabilized orthosilicic acid on hair tensile strength and morphology in women with fine hair
  3. CFR – Code of Federal Regulations Title 21
  4. Re-evaluation of silicon dioxide (E 551) as a food additive
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Dr. Shruti Chavan is a consulting dermatologist at Dr.Sheth's Skin and Hair Clinic since 6 years. She is a co-committee member of CDSI (Cosmetic dermatologist Society of India). She is highly skilled in non-surgical facial skin rejuvenation and face lift by the use of injection treatments and lasers.

Read full bio of Dr. Shruti Chavan
Ramona Sinha
Ramona is an editor at StyleCraze with 11 years of experience in writing and editing. She has authored over 200 articles on skin and hair care. She graduated from the University of Calcutta, West Bengal, and did her post-graduation from the University of Kalyani, West Bengal.

Read full bio of Ramona Sinha
Anjali Sayee
Anjali SayeeAssociate Editor
Anjali is an associate editor at StyleCraze. She specializes in hairstyles and hair and skin care and has written over 200 articles in these domains. She has 7 years of experience, and her philosophy about hair and skin care is simple: if you love and care for it, it will be healthy.

Read full bio of Anjali Sayee
Swathi E
Swathi ESenior Beauty & Lifestyle Writer
Swathi has a postgraduate degree in English literature from The English And Foreign Languages University, Hyderabad, and over three years of experience in writing on beauty, health, and lifestyle. She also has a diploma in English journalism from the Indian Institute of Mass Communication, Kottayam, and is a certified skincare coach.

Read full bio of Swathi E