Best Vitamins and Supplements for Hair Growth and Thickness

hair vitamins


How Do I know if Vitamin Deficiency is Affecting my Hair?

There are multiple different reasons that can cause hair thinning, balding, and patchiness. However, a lot of these symptoms can be caused by vitamin deficiencies. It is incredibly important that vitamins like vitamin B, E, A and C are all in your diet in order to ensure that your hair remains healthy.


Do Hair Growth Vitamins Actually Work?

Hair growth vitamins are amazing for keeping your hair healthy and strong. They also help to increase the rate at which your hair grows. Hair growth vitamins, like those made by KeraHealth target hair growth, strength and healthiness at a cellular level. They include different vitamins like vitamin B, as well as KerCysteine – all 18 essential amino acids which are all vital for hair growth and hair strength.


Essential Hair Growth Vitamins

There are multiple different vitamins that are really important for hair growth. Some work to keep your scalp healthy, some work to promote circulation, and some work to strengthen your hair shaft. You should ensure that you include the following vitamins and minerals in your diet to promote maximum hair health!


Vitamin A

Vitamin A helps the body create sebum which is an oily substance that helps to moisturise the scalp and keep the hair healthy. Vitamin A is found in foods like cod liver oil, eggs, and dark green leavy vegetables. Implementing these foods into your diet can increase your body’s vitamin A levels and keep your hair healthy.


Vitamin B

Vitamin B is one of the most important vitamins for hair health. Vitamin B helps to carry oxygen and nutrients which aid hair growth. The two most important B vitamins are:

  • Vitamin B7
    • You can find vitamin B7 in foods like eggs, peanuts, mil k, cereals, walnuts.
  • Vitamin B12
    • You can find vitamin B12 in animal products like fish, poultry, eggs and milk.


Vitamin C

Vitamin C is another vitamin that’s incredibly important for hair health. It helps to create a protein called collagen which is a structural protein which is a key part of your hair structure. As a consequence, vitamin C is great for improving hair strand strength and thickness. You can find vitamin C in citrus fruits and most vegetables.


Vitamin D

Vitamin D really helps with hair growth and reducing hair loss. It plays a role in stimulating new and old hair follicles and a lack of vitamin can reduce hair growth. You can find vitamin D in foods like fatty fish, dairy products, orange juice and soy milk.


Vitamin E

Vitamin E is essential for healthy skin which includes your scalp! By ensuring you are getting enough vitamin E in your diet, you are ensuring that your scalp, which is really important because scalp health has been shown to directly correlate to hair health . You can find vitamin E in sunflower oil, sunflower seeds, almonds, peanuts, spinach, and pumpkin.



Iron deficiency (ID) is the world’s most common nutritional deficiency and is a well-known cause of hair loss. Iron is a mineral that helps to circulate oxygen around your body. An iron deficiency means that your hair follicles probably are not getting enough oxygen which can really stunt its growth and cause hair loss. Foods like red meat, beans, nuts, and dried fruits all contain high levels of iron and it is really important you incorporate them into your diet to reduce chances of hair loss.



Zinc is another mineral that is key for hair growth. It helps to keep oil glands that moisturise your hair healthy and working properly, and it also plays an important role in hair tissue growth and repair. A zinc deficiency is a really common reason for hair loss, so in order to avoid this it is important to make sure you’re eating foods like oysters, red meat, poultry, beans and nuts.



Hair follicles are predominantly made up of protein, so it is really important that you make sure you are getting enough protein in your diet to avoid hair loss. High volumes of  protein are found in lean meat, poultry, fish, seafood, and diary products.


Best Hair Supplements

There are hundreds of different hair supplements on the market. However, there are some that definitely work much better than others. Hair supplements, like those created by KeraHealth, are amazing for hair health as they contain key vitamins and minerals that are clinically proven to increase hair growth, thickness, and strength.


Biotin (vitamin B7) helps with the production of keratin. Given that keratin is one of the main components of the hair follicle and shaft, taking biotin supplements can really help to improve hair thickness and length. If you decide to take biotin, it is recommended that you take between 2-5mg per day for optimal results.


How to know if you have a biotin deficiency

The most common symptoms of a biotin deficiency are

  • Thinning hair all over the body
  • A red scaly rash around the eye, nose, mouth and perineum
  • Conjunctivitis

If you are experiencing any of these symptoms you should go and see a doctor, and it is likely that they will give you ways in which to incorporate more biotin into your diet and prescribe you biotin supplements.


Keratin is a protein that makes up most of your hair. It is a protective protein that gives the hair shaft strength. Taking keratin supplements boosts your body’s level of keratin and increases the strength of your hair strands. If you find that your hair is becoming finer and potentially thinning out, taking keratin supplements could really bolster your hair strands and bring back some of that fullness. The recommended daily dose of keratin is up to 10 milligrams.



Collagen is another structural protein that makes up most of the hair shaft. It strengthens the hair strand and follicle while also giving it some elasticity. Taking collagen supplements can decrease hair loss and stimulate new hair growth. Taking daily collagen supplements can really increase the thickness and strength of your hair follicles and reduce breakage. The recommended dose of collagen is between 2.5 – 15 grams daily though this is dependent on the supplement and the reason you are taking it.


Amino Acids / Omega-3 Fatty Acids

As protein is what hair is predominantly made out of, taking amino acid supplements has been shown to decrease hair loss and to increase the strength and the length of the hair. The most important amino acid for hair growth is cysteine as it is the biggest component of keratin. Hair supplements, like those made by KeraHealth, that include cysteine have been shown to really promote hair growth.


Omega-3 fatty acids have been scientifically proven to help increase hair growth. They provide the follicles with essential nutrients and oils that really help to keep the follicle healthy and prevent inflammation. They also promote circulation which has also been shown to stimulate hair growth. Between 250-500 mg of omega-3 fatty acids are recommended as the daily dosage.


Hyaluronic acid

Hyaluronic acid helps to keep the hair healthy. When it is applied to wet hair, it seals in the moisture, which makes the hair strands more hydrated and elastic. It also helps to moisturise the hair strands. This also lifts the hair and gives it more volume, without using damaging product, while keeping it in the best condition possible. By keeping the hair cells healthy, it reduces hair loss and stimulates hair growth. You can also take it in a supplement form. If you have really dry hair, it is recommended that you use hyaluronic acid after you wash your hair to lock in moisture, or take 50mg a day.


How long do hair supplements take to work?

Hair growth supplements do not work overnight. It takes somewhere between 3-6 months in order for most people to really start seeing results. Taking supplements daily really promotes your hair growth and will give you clearer skin, healthier nails, and really strengthen your hair health, growth and thickness. If you have noticed hair loss, thinning or your hair becoming finer, start your hair journey with KeraHealth today!

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Fay Afghahi

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Editor to Entrepreneur and Founder of KeraHealth.