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Is Biotin Beneficial for Hair Growth?

October 22, 2021 5 min read

Hair growth is a constant source of anxiety, regardless of age or gender. While the pace of hair development varies from person to person, substances such as Biotin can help.

Biotin, a member of the B-vitamin family, is known to offer several advantages, one of which is increased hair development.

Let's take a closer look at how biotin aids hair development and how to get the most out of it.


  • What Is Biotin and Why Is It Important?
  • What Is the Purpose of Biotin in Hair?
  • How Much Biotin Do You Need for Hair Growth?
  • How Do You Use Biotin To Grow Your Hair?
  • Biotin Advantages, Contraindications, and Risks
  • How Long Does Biotin Take To Effect On Hair?
  • Can You Apply Biotin to Your Hair Directly?
  • Which is better for hair growth: biotin or folic acid?


What Is Biotin and Why Is It Important?

Biotin, commonly known as Vitamin H, is a member of the vitamin B family, which is extremely helpful. It is a water-soluble vitamin that aids your body's conversion of certain nutrients into energy. It is well-known for its advantages on the hair and skin. Biotin is also beneficial to the nails.

 If your body lacks biotin, you may experience hair loss as well as skin problems such as red rashes and damaged nails. While the quantity of biotin in your regular diet is sufficient for your health needs, many individuals take biotin supplements for further advantages. This may or may not be helpful for your overall health. As a result, you must understand when and how to utilise biotin.

What Is the Purpose of Biotin in Hair?

Keratin is a protein that is found in your hair, nails, and skin. Biotin helps to maintain and impact the keratin structure in your body. Despite extensive study on how biotin promotes hair development, little proof has been identified.

 A double-blind research on women with thinning hair was done in 2015. For 90 days, they were given an oral marine-protein supplement containing biotin twice a day. Photographs of the scalp were taken before and after the MPS dose. Significant hair growth and reduced hair fall were reported.

Another double-blind, placebo-controlled research found similar results. Participants in the research reported increased hair growth after taking an oral supplement containing biotin.

How Much Biotin Do You Need for Hair Growth?

While a lack of biotin can result in hair loss and other skin problems, it is not frequent. As a result, the Food and Drug Administration in the United States has not established a biotin daily dose. The RDA is determined by your age, gender, and overall health. Hair specialists, however, have recommended the following biotin dose for hair growth:



Up to 3 years

10 to 20 mcg

4 to 6 years

25 Mcg

7 to 10 years

30 Mcg

Above 10 years

30-100 Mcg

Pregnant and nursing women are advised to take a greater dose of biotin. You should talk to your doctor about how much biotin you should take on a regular basis. You can get your daily biotin dose through food or from biotin supplements.

How Do You Use Biotin To Grow Your Hair?

Biotin from Food

Normally, you obtain your biotin dosage through your daily dietary consumption. You may boost the quantity of biotin in your body by eating foods rich in it.

Among these are:

  • Egg yolk
  • Nuts such as walnuts, peanuts, and almonds.
  • Meats, especially liver and kidney
  • Whole Grains
  • Cauliflower \Mushrooms
  • Bananas
  • Sweet potatoes
  • Broccoli \Avocados
  • Yeast

Biotin Supplements

Biotin supplements are available over the counter at any medical supply store. These are available in capsule and tablet form. Before using any supplements, check with your doctor.

Biotin Advantages, Contraindications, and Risks

Aside from being beneficial for hair, Biotin has a slew of additional advantages. These are as follows:

1. Beneficial to Pregnant Women

During pregnancy, biotin has an effect on embryonic development. Many people believe that getting enough biotin as a baby will keep them healthy. Most pregnant women have a biotin deficit,[ which commonly results in postpartum hair loss]. Taking a biotin and folic acid-containing prenatal vitamin can aid in foetal growth.

2. Relieves Diabetes Symptoms

According to research, combining biotin and chromium can help with diabetic symptoms. Biotin supplementation can help reduce diabetic neuropathy discomfort and keep blood sugar levels in balance. Biotin also helps with glycemic control.

3. Improves the Health of Your Heart

Biotin affects artery thickness, which can contribute to reduced blood pressure. The combination of biotin and chromium regulates your blood cholesterol level, lowering your risk of cardiovascular disease.

4. Aids in Weight Loss

The combination of biotin and chromium offers several benefits. It aids in the treatment of obesity. Because obesity is linked to high triglyceride levels, the combination lowers triglyceride levels.

5. Improves Immunity

Biotin aids in the production of white blood cells, which constitute the foundation of a strong immune system. A low biotin level can lower the number of antibodies in your body, resulting in inadequate immunity.

While biotin-rich foods pose no hazards, biotin pills may have mild adverse effects. These symptoms include nausea, cramps, and diarrhoea. You can, however, mitigate them by taking biotin pills with meals. Kidney difficulties and insulin release abnormalities are also possible.

Before using any biotin supplement, always with your doctor. Also, if you are taking any other medicine, see your doctor to see if it is okay to take a biotin supplement alongside that prescription.

Because biotin is a water-soluble vitamin, any excess biotin in your body will be eliminated through your urine. As a result, there is reduced risk of biotin overdose. Still, if you get a skin rash after increasing your biotin consumption, consult with your doctor.

Symptoms of Biotin Overdose

  • Vitamin C and vitamin B-6 levels are lower.
  • High blood sugar
  • Insulin production has decreased.


How Long Does Biotin Take Effect On Hair?

According to research, it takes at least 90 days. However, it is entirely dependent on your existing hair condition and biotin dose. You may experience results sooner if you take a greater dose of biotin. Furthermore, because this vitamin is not retained by the body, it must be supplied through your food on a daily basis in order for you to experience effects.

Can You Apply Biotin to Your Hair Directly?

Shampoo, hair oil, and hair spray containing biotin are available over the counter. You may use them straight on your hair. You may also use biotin-rich natural products like almond oil, avocado oil, and so forth.

Which is better for hair growth: biotin or folic acid?

Several research on biotin have had favourable outcomes. Although the specific role of biotin in hair development is unknown, studies have shown that it has an effect on hair growth.

Researchers, on the other hand, believe that folic acid does not do much to stimulate hair growth. A prospective analytical controlled research  was conducted on 52 males with prematurely grey hair and folic acid insufficiency. There isn't enough data to back up the link between folic acid and hair growth.

Putting it all together:

Biotin deficiency may be the cause of your hair loss. Proper biotin consumption can help your hair grow back. While your regular diet should be sufficient, you can enhance your biotin consumption with biotin-rich foods or supplements. According to research, having more biotin in your diet might make your hair thicker and shinier. But first, identify your hair type and see your doctor for personalised care.

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