Folate for Hair Growth: Does Vitamin B9 Really Help?
Folate — vitamin B9 — is essential for normal cell division and blood formation. It is frequently promoted for hair growth, often under the name folic acid. But folate and synthetic folic acid are not quite the same thing, and their role in thinning hair is often overstated.
What is folate?
Folate is the natural form of vitamin B9, an essential water-soluble vitamin required by the body for normal cell division, DNA synthesis and the formation of healthy red blood cells.
Because hair follicles contain rapidly dividing cells, it is easy to see why vitamin B9 has become associated with hair growth.
However, there is an important difference between saying that folate is necessary for normal health and claiming that taking extra vitamin B9 will make everybody's hair grow faster.
As with biotin, the strongest nutritional argument relates to adequacy and deficiency rather than simply taking larger and larger amounts.
“Folate” describes naturally occurring forms of vitamin B9. Folic acid is a synthetic form commonly used in fortified foods and many supplements. HR23+® uses folate rather than synthetic folic acid.
Folate vs folic acid: what's the difference?
The terms are often used interchangeably in everyday conversation, which is why many people searching for “folic acid for hair growth” are really asking about vitamin B9 generally.
There is, however, a distinction.
Folate
Folate is the general term for naturally occurring forms of vitamin B9 found in foods and available in certain supplement forms.
This is the form of vitamin B9 used in HR23+®.
Folic acid
Folic acid is the synthetic form of vitamin B9 commonly used in food fortification and many conventional vitamin supplements.
It must undergo metabolic conversion before it can participate in folate-dependent processes in the body.
Why does the body need folate?
Cell division
Folate has a role in the process of cell division, making adequate vitamin B9 important for tissues throughout the body.
Blood formation
Folate contributes to normal blood formation and inadequate folate can lead to megaloblastic anaemia.
Normal metabolism
Folate contributes to normal homocysteine metabolism and also contributes to the reduction of tiredness and fatigue.
Does folate actually promote hair growth?
Hair follicles are highly active structures, and normal hair production depends on adequate nutrition.
Folate's role in cell division and blood formation gives vitamin B9 a clear biological relevance to rapidly renewing tissues.
But that does not establish folate as a stand-alone hair-growth treatment.
Evidence that taking extra folate or folic acid causes significantly faster or thicker hair growth in people who already have adequate vitamin B9 status is limited.
What folate can reasonably support
- Normal cell division.
- Normal blood formation.
- Normal homocysteine metabolism.
- Normal psychological function.
- Reduction of tiredness and fatigue.
- Overall nutritional adequacy.
What folate hasn't been shown to do
- Regrow a receding hairline by itself.
- Block DHT or androgen activity.
- Reliably make healthy hair grow faster.
- Reverse male or female pattern hair loss.
- Prevent every form of hair shedding.
- Reverse premature greying in everyone.
Can folate deficiency affect the hair?
Nutritional deficiencies can affect tissues with high cellular activity, and inadequate folate can have significant consequences for general health.
Folate deficiency can cause megaloblastic anaemia and may occur alongside symptoms such as fatigue and weakness. Changes to hair can also occur in the context of poor overall nutritional status.
However, folate deficiency should not automatically be assumed whenever somebody develops thinning hair.
Hair loss has many possible causes, including androgenetic alopecia, telogen effluvium, iron deficiency, thyroid disorders, illness, major physiological stress and certain medications.
Can folate prevent hair loss?
Folate should not be described as a general hair-loss preventative.
If inadequate vitamin B9 status is part of someone's nutritional problem, restoring adequate intake is important. But folate does not perform the same function as treatments that target specific forms of hair loss.
In particular, folate does not block DHT and should not be expected to stop the progressive follicle miniaturisation associated with male or female pattern hair loss.
Which foods naturally contain folate?
Folate occurs naturally in a variety of foods. A balanced diet can therefore make an important contribution to normal vitamin B9 intake.
Leafy green vegetables
Spinach, kale and other leafy greens are well-known natural sources of folate.
Liver
Liver is naturally rich in folate as well as a wide range of other vitamins and minerals.
Beans & legumes
Lentils, chickpeas and various beans can contribute substantial amounts of dietary folate.
Asparagus & other vegetables
Asparagus, broccoli, Brussels sprouts and several other vegetables provide naturally occurring folate.
Does more vitamin B9 mean faster hair growth?
No. Nutrients do not generally work on a simple “more in, more benefit out” basis.
The goal of nutritional support is to provide what the body needs — not to assume that increasingly high doses will force follicles to produce more hair.
Once adequate nutritional status has been achieved, additional vitamin B9 should not automatically be expected to increase the speed or density of hair growth.
Three claims worth correcting
“Folic acid is one of the most powerful hair-growth vitamins.”
Vitamin B9 is essential nutrition, but there is limited evidence that supplementation produces significant extra hair growth in people who already have adequate folate status.
“Folate boosts the hair follicles.”
Folate has an established role in normal cell division and blood formation. Describing this as directly “boosting” follicles goes beyond what has been demonstrated.
“Folate works as a DHT-blocking hair treatment.”
It does not. Folate is a nutrient and should not be confused with substances or medicines that influence androgen pathways.
Why does HR23+® use folate rather than synthetic folic acid?
Vitamin B9 has always formed part of the broader nutritional concept behind HR23+®, but the distinction between different forms of B9 matters.
HR23+ uses folate rather than synthetic folic acid.
It sits alongside biotin and the other selected vitamins, minerals and botanical ingredients within the complete 23-ingredient formula.
Real folate
HR23+ uses folate as its source of vitamin B9 rather than conventional synthetic folic acid.
Normal cell division
Folate has a recognised role in normal cell division and contributes to normal blood formation.
Part of the complete formula
Vitamin B9 is not expected to carry the formula by itself. It forms one component of HR23+'s broader nutritional approach.
Not a megadose strategy
The aim is consistent nutritional hair support rather than treating one vitamin as a stand-alone solution for every type of hair loss.
Folate is essential. That doesn't make it a miracle hair-growth vitamin.
Vitamin B9 plays genuine and important roles in normal cell division and blood formation, and maintaining adequate folate status matters for overall health.
If someone is deficient, addressing that deficiency is important.
What the evidence does not justify is promising that extra folate or folic acid will make everybody's hair grow faster, stop genetic hair loss or regrow lost hair.
Folate makes more sense as one part of a balanced nutritional approach — which is exactly how it is used within HR23+.
Real folate. Part of a 23-ingredient formula.
HR23+® uses folate rather than synthetic folic acid, alongside 22 other selected vitamins, minerals and botanical ingredients in one dedicated daily hair-support formula for men and women.
Explore HR23+®Folate, folic acid and hair growth: FAQ
Does folic acid help hair growth?
Vitamin B9 is essential for normal cell division and blood formation. Correcting inadequate folate status is important, but there is limited evidence that taking extra folic acid or folate makes hair grow faster in people who already obtain enough.
What is the difference between folate and folic acid?
Folate refers to naturally occurring forms of vitamin B9. Folic acid is the synthetic form commonly used in fortified foods and many supplements.
Does HR23+® contain folic acid?
HR23+ uses folate as its source of vitamin B9 rather than synthetic folic acid.
Can folate deficiency cause hair problems?
Poor nutritional status can affect hair, and folate deficiency has important consequences for the body. However, folate deficiency is only one possible nutritional consideration and should not be assumed to be the cause of every case of thinning hair.
Can folate stop male or female pattern hair loss?
Folate is not a DHT blocker and is not an established treatment for androgenetic alopecia. Genetic pattern hair loss involves progressive follicle miniaturisation and cannot be assumed to result from inadequate vitamin B9.
Which foods naturally contain folate?
Natural sources include leafy green vegetables, liver, lentils, beans, asparagus, broccoli and Brussels sprouts.
Why is folate included in HR23+®?
Folate is included as one component of HR23+'s broader 23-ingredient nutritional hair-support formula. It has established roles in normal cell division and blood formation.
This article is for general information only and should not be considered medical advice. Persistent, sudden, severe or unexplained hair loss should be appropriately assessed. Individual nutritional requirements vary.