Sure, those healthy hair products you use in your regular hair care routine go a long way in maintaining the look of thick, gorgeous hair. But there are some often-overlooked factors that lead to the appearance of hair loss. We are talking about what you are putting inside of your body to ensure the appearance of healthy hair growth.

Did you know that nutritional deficiencies play a prevalent role in hair loss? Yep, according to clinical studies, like the research published in the Dermatologic Therapy journal, deficiency in certain vitamins and minerals can affect normal follicular development and hair growth.

Oxidative stress (as well as scalp health) is also thought to encourage hair-related issues, like hair loss, as reported in a study published in the International Journal of Trichology. Deficiencies in vitamins like D and B12 are found to prompt oxidative stress.

Getting those nutrients that help to maintain a thick-looking head of hair into your regimen is easy when you know where to find them.

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Which Vitamin Deficiency Causes Hair Loss?

There are several vitamins and minerals that affect hair growth. Here’s a breakdown of which vitamin deficiency causes hair loss.

Vitamin B12

According to the study published in the Dermatologic Therapy journal, a deficiency in vitamin B12 is linked to hair loss. Mayo Clinic stated that the recommended daily value of B12 for adults is 2.4 micrograms, and this vitamin can be found in foods like beef, nutritional yeast, fortified cereals, salmon, and eggs.

Folic acid

While evidence is limited to any actual proof that folic acid (a B vitamin) enhances the appearance of hair growth, it certainly can’t hurt if you are noticing an increase in hair shedding or thinner locks. And, as stated above, B vitamins are one component of visibly healthy hair growth.

Vitamin D

This vitamin plays an important role in the hair cycle and is linked to several different types of hair loss, as stated in research published in the Journal of Cosmetic Dermatology. Vitamin D deficiency is also one of the most common vitamin deficiencies, with around 42% of Americans showing low levels of vitamin D, as stated by Cleveland Clinic.

The recommended daily value of vitamin D for adults is 800 IU and it can be found in salmon, egg yolks, and fortified milks and cereals. You can also get vitamin D from the sun’s rays. Just be sure you are using adequate sunscreen when soaking up some sunshine.

Amino acids

While you most likely don’t think about amino acids when it comes to your health regimen, research published in the International Journal of Trichology showed that they do play an important role when it comes to the appearance of hair growth. The best sources of amino acids are animal proteins.


It’s pretty typical to see biotin among the ingredients in most hair vitamins. This is because biotin deficiency is associated with alopecia (a common hair loss condition), according to a study published in the Journal of Clinical and Aesthetic Dermatology. Biotin-rich foods include legumes, seeds, nuts, bananas, and avocados.

Omega-3 fatty acids

Research published in the International Journal of Molecular Science found that omega-3 fatty acids promote hair growth in mice. Omega-3s also help to provide proteins to the scalp and hair follicles, and boost circulation to the scalp. Foods that are rich in Omega-3 fatty acids include fish oil, flaxseed, chia seeds, and walnuts.

Other Ways To Get Vitamins for Hair Growth and Thickness

Hair growth supplements are an easy way to get vitamins for hair growth and thickness into your regular routine. But not all hair growth vitamins are created equally. It’s important to look at all ingredients in the products you shop to ensure you choose a product with active ingredients, not one that is full of sugars, fillers, and artificial flavors.

Viviscal PRO Professional Strength hair growth supplements are 100% drug free and made with natural ingredients which supply vital nutrients to the hair follicles through the bloodstream to prolong the hair growth cycle and promote existing hair growth. Scientifically formulated to nourish thinning hair from within, Viviscal PRO is a biotin supplement and also contains amino acids, plus a marine complex that provides essential fatty acids. All it takes is two tablets per day for 3-6 months. Viviscal reviews report that our customers love the ease of use and hair growth results of the supplement. Users say that their hair feels thicker, fuller, and healthier.

Viviscal PRO dietary supplements are clinically researched (the Food and Drug Administration is not required to evaluate supplements) and showed a 111% increase in hair after three months, an 80% increase in hair after six months, and a 12% increase in hair diameter after three months of use. And it’s suitable for women and men with all types of hair.

For best results, combine Viviscal PRO supplements with Viviscal Professional Thin To Thick Elixir, a leave-in conditioner for fuller, thicker feeling hair. Biotin is included to support your hair growth efforts.

A few changes to your diet and the addition of high quality, proven effective hair growth supplements may be all you need to see fuller, thicker hair.

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