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What is the Best Supplement for Hair Loss?

Supplements for hair loss

Most men and women start looking for the best supplement for hair loss after 35. Hair loss is more common in men than women. In fact, male baldness affects about 50% of men over 50.

Hair loss causes are numerous including genetics, stress, medications, diseases, infections, toxins, and many more. Yet, nutritional problems and vitamin deficiencies are considered one of the most common reasons for hair loss.

There are thousands of products and supplements on the market and each one of them claims that it is the best hair growth supplement. Most of these products depend on vitamins and minerals to help the hair to grow again naturally.

In this article, we will find out the science behind the most recommended vitamins and minerals that can be found in most commercial products.

But first, let’s answer some quick questions.

What is the Best Vitamin Supplement for Hair Growth?

Biotin - Best supplement for hair loss

Biotin, also known as vitamin B7 or vitamin H, is the best vitamin supplement for hair growth. It is one of the B-complex vitamins that can promote the structure of the protein in your hair, nails, and skin.

Most people take biotin supplements to help their hair grow faster and stronger. However, biotin works better for people who are deficient in it.

Biotin deficiency is rare, yet it is not stored in the body for a long time. That is why it must be consumed regularly to help your hair grow via foods. Natural sources of biotin will also provide your body with other vitamins and minerals that prevent hair loss and promote the overall growth of your hair. Meat, eggs, fish, and nuts are rich in biotin and other minerals and vitamins that are great for your hair health.

It works by increasing the production of keratin in your hair in addition to the hair follicles growth rate.

To find the best biotin hair growth supplement, check its ingredients and reviews and look for people who had the same problems as you.

What is the Best Supplement for Men’s Hair Loss?

Combination Supplements

The best supplement for men’s hair loss is the one that includes as many nutrients as possible to affect hair growth. These supplements are usually called combination supplements and they include some or all the following ingredients.

  • Zinc
  • Iron
  • Niacin
  • Selenium
  • Fatty acids
  • Folic acid
  • Biotin
  • Amino acids
  • Protein
  • Antioxidants
  • Vitamins D, A, and E

For example, Nutrafol is one of the best combination supplements in the UK. It helps hair growth and prevents hair loss by creating a blend of the best ingredients for hair health in a single capsule.

Nutrafol has a great blend of ingredients since it contains vitamins, herbs, marine collagen, saw palmetto, and other ingredients. This combination works by eliminating the factors that may cause hair thinning such as environmental stress and aging. Besides, the company claims that this blend of ingredients is effective in reducing the levels of dihydrotestosterone (DHT). DHT is one of the byproducts of testosterone and it can lead to thinning out of hair follicles if existed in high concentrations.

Clinical studies on Nutrafol show that it can reduce the high levels of cortisol, which is released due to stress. It contains a great blend of ingredients that can prevent hair thinning and stop androgenetic alopecia (i.e., male pattern baldness) from becoming worse.

Now, let’s see other supplements that may improve your hair health.

The Best Supplements for Hair Loss for Men and Women

Saw Palmetto

Saw Palmetto

Saw Palmetto has been used as an alternative remedy for hair loss in men for centuries. Studies show that saw palmetto extract can block the action of the 5-alpha-reductase enzyme, which is responsible for converting testosterone to DHT. DHT is not only responsible for hair loss but also can lead to prostate enlargement.

A study was done on saw palmetto suggested that it can treat prostate enlargement. The same study found that it can prevent or slow down hair loss. In fact, the active compounds found in saw palmetto work on the same enzyme that the active, synthetic ingredients in hair loss prevention medications for hair thinning and hair loss work.

However, more studies are needed on saw palmetto and its efficacy in preventing hair loss. The current studies are promising. In fact, one study was done on 25 participants showed that combining 10% of trichogen veg complex with topical saw palmetto can provide great results. The participants who used this combination experienced an increase of 11.9% of their hair count after 4 months of treatment.



L-cystine is one of the most important amino acids in our bodies. It can be found in soy, wheat, onions, and many other foods and works on making both hair and fingernails stronger.

L-Cystine is found in the structure of keratin, which is a protective protein found in your hair, skin, and nails in addition to internal organs and glands.

A review in 2018 found that hair loss supplements fortified with L-cystine can slow down hair loss and prevent hair thinning in the long run.

The recommended daily allowance of L-cysteine is 200 to 500 milligrams. Exceeding this dose can lead to some side effects including nausea, vomiting, diarrhea, and headaches in addition to liver problems in the long run.

Vitamin A

Vitamin A for hair loss

Vitamin A is essential for hair health. In fact, all types of cells need vitamin A for proper growth including hair, which is the fastest growing tissue in our bodies.

Vitamin A enhances the skin glands to produce sebum. It is an oily substance responsible for keeping the scalp moisturized and maintaining the hair follicles healthy.

If your diet does not include enough vitamin A, many health issues can occur including hair loss.

While it is crucial to consume enough vitamin A, it is important to stick to the recommended daily allowances since several studies show that high levels of vitamin A can cause hair loss too.

Spinach, carrots, sweet potatoes, and pumpkins are great sources of beta-carotene, which is converted into vitamin A in our bodies.

Folic Acid

Folic Acid - Supplement for hair loss

Folic acid is an important nutrient for the proper growth of cells including your hair, skin, and nails cells. These effects work in two ways; directly and indirectly.

Since folic acid is needed for the proper growth of hair, it affects it directly. Besides, it maintains our Red Blood Cells (RBCs) healthy. RBCs are responsible for delivering oxygen and nutrients to the tissues, which is also essential for the proper growth of your hair.

Folic acid is actually synthetic. It is derived from folate, which is a B vitamin. When this vitamin is found naturally in foods, it is called folate. On the other hand, it is called folic acid in fortified foods and supplements. Either way, both of them work in the same way.

Studies on the effects of folic acid on the hair as a growth supplement are not enough. One study in 2017 was done on 52 adults experiencing premature greying found that folic acid deficiency in addition to vitamin B7 and vitamin b12 deficiencies can be responsible for this condition.

It is a promising supplement for our tissues including hair, but more research is required.

Panthenol (Pantothenic Acid)

Panthenol (Pantothenic Acid)

Panthenol is one of the most famous ingredients in skincare and haircare products. This chemical substance is derived from pantothenic acid or vitamin B5, which, according to numerous reviews, is considered the best supplement for hair loss.  

Pantothenic acid can be found in both animal and plant sources and panthenol can be extracted from both. This vitamin plays a crucial role in the cellular division process in the roots of hair follicles. It also helps in preventing premature greying.

Haircare products use panthenol because it can improve the overall health and appearance of hair. It increases your hair strength, makes it softer, and helps it to shine. Besides, it locks in moisture, which protects the hair against damages that may occur due to harsh styling methods and environmental damage.

A study was done on panthenol found that it slows down hair thinning and hides the appearance of having thin hair. This study compared it to other supplements for hair loss and found that it is better than most of them.



One of the essential micronutrients for the proper growth and development of nearly all our body tissues including our hair is iodine.

It is rare to suffer from iodine deficiency. Yet, due to its antifungal, antibacterial, antiviral, and antiparasitic properties, it helps to get rid of infections, especially fungal infections, that consume the hair follicles’ ends. In other words, it helps to keep your scalp and hair healthy and increases the rate of hair growth.

Besides, iodine enhances the thyroid gland, which is vital in enhancing hair growth and maintaining hair strength.

Studies also found that it can prevent dry hair and hair loss. Therefore, if you want to keep your hair thick and make it stronger from roots, increase your iodine intake.

Bottom Line

If you wonder what supplements to take for hair loss as a female or what the best supplement for men’s hair loss is, the previous supplements can be the answer you are looking for.

Up till now, the best supplement for hair loss does not exist. Results differ from a person to another. Therefore, you may need to try some options before finding the best supplement hair loss supplement for your hair.