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learn Folic acid

Is folic acid deficiency a common cause of chronic or sudden hair shedding? Folic acid deficiency can contribute to hair shedding but is not a common cause.
Can folic acid help reduce hair loss in men and women, and how should it be taken? Correcting a confirmed folate deficiency is reasonable, but no published trial shows folic acid supplementation reduces hair loss on its own; the evidence is a few small observational studies and reviews that call for proper trials.
Is there a difference between taking folic acid supplements and using folic acid in topical hair products? Oral folic acid uses the body's normal absorption route and can correct a measured deficiency, but no published trial shows it treats hair loss; topical folic acid has no human evidence for hair growth and struggles to cross the skin barrier at all.
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Research

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research Folic acid therapy for alopecia in a Charolais calf

1 citations , November 1988 in “Veterinary Record”

In this case study, oral folic acid therapy resulted in noticeable improvement and eventual recovery from hair loss and skin issues in a three-week-old Charolais calf.

research Evaluation of Zinc, Vitamin B12, Folic Acid and Iron Levels and Thyroid Functions in Patients with Chronic Telogen Effluvium

2 citations , December 2015 in “Journal of dermatology research and therapy”

This study compared serum zinc, vitamin B12, folic acid levels, iron metabolism, and thyroid function between chronic telogen effluvium patients and healthy controls, but it reports no specific clinical results.

research Prevalence of nutritional deficiencies in hair loss among Indian participants: Results of a cross-sectional study

25 citations , January 2017 in “International Journal of Trichology”

This study found that nutritional deficiencies, particularly in amino acids and certain micronutrients, are common in individuals with hair loss across all types of alopecia.

research The Etiological Role of Thyroid Dysfunction and Vitamin Deficiency in Patients with Telogen Effluvium

September 2020 in “Osmangazi tıp dergisi”

This study found that vitamin D, vitamin B12, and iron deficiencies, along with thyroid dysfunction, may be associated with telogen effluvium.

Comparative Analysis of Postoperative Hair Loss and Micronutrient Deficiencies After One-Anastomosis Gastric Bypass Versus Sleeve Gastrectomy

research Comparative Analysis of Postoperative Hair Loss and Micronutrient Deficiencies After One-Anastomosis Gastric Bypass Versus Sleeve Gastrectomy

March 2026 in “Obesity Surgery”

This study found that hair loss after metabolic and bariatric surgery peaks at 3 months and improves by 6 months, with iron deficiency and female sex being strong predictors of hair loss.

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Community Join

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community Folic Acid and hair loss

4 upvotes 7 years ago

A user experienced hair loss due to a folic acid deficiency and saw hair regrowth after taking a folic acid supplement. They advise checking for a folic acid deficiency before spending money on other treatments.

community 2nd month vs 3rd month .fin 1 mg,5mg biotin and folic acid, weekly once 60k vitamin d3

28 upvotes 1 year ago

The user experienced hair regrowth using finasteride, biotin, folic acid, vitamin D3, and microneedling, despite initial shedding. Vitamin D3 deficiency caused hair loss and insomnia.

community Is Vitamin D the cause of my baldness or slow regrowth?

in Is this regrowth? 1 upvotes 10 months ago

The conversation discusses hair loss treatments, including oral finasteride, topical minoxidil, and microneedling, and the potential impact of Vitamin D and folic acid deficiencies on hair regrowth. It suggests that while male pattern baldness is the primary cause, addressing vitamin deficiencies may aid in improving regrowth.

community Dutasteride worked at 3x/week, then paradoxically got worse after upping to 5x/week — DHT went UP, not down

31 upvotes 2 weeks ago

Increasing dutasteride from 3x to 5x a week led to worse hair loss and higher DHT levels, prompting a return to the original dosing. The user also uses topical minoxidil and is addressing a folic acid deficiency.

community Vitamins Deficiency and blood works result

in Treatment 2 upvotes 1 year ago

The conversation is about a user planning to start minoxidil treatment and considering increasing zinc intake to improve testosterone and libido. They are concerned about potential hair loss due to increased testosterone and are advised to consider magnesium supplementation and the effects of DHT if not on finasteride or dutasteride.

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