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MedicineNet
medicinenet.com › can_vitamin_b12_reverse_premature_gray_hair › article.htm
Can Vitamin B12 Reverse Premature Gray Hair? Graying Chart, 13 Causes & 8 Tips
June 1, 2022 - Exercises for Seniors: Tips for Core, Balance, Stretching See Slideshow · Premature graying may be due to various reasons, such as: Vitamin deficiencies, such as B12, biotin, or folate ...
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PubMed Central
pmc.ncbi.nlm.nih.gov › articles › PMC11694638
A Randomized, Placebo-controlled Clinical Study Evaluating a Dietary Supplement for Hair Growth - PMC
In a study of subjects presenting ... Another showed no significant difference in vitamin B12 and folate levels and hair loss.19 Folate and B12 may have an effect on hair color, as a case-control study of 52 subjects in India with premature greying (defined as greying occurring ...
Discussions

Hair Regrowth?
Dr. Chandy in the UK wrote a book of b12 case studies and had a couple patients with hair loss that reversed. You additionally want adequate folate. Either from spinach etc or folic acid. Also potassium rich goods. The amount of b12 you're getting via shots may not be enough fyi. If still having problems consider a sublingual supplement along with the shots. Daily 1000 to 5000 mcg. Methylcobalamin unless it causes anxiety insomnia. Second best choice being hydroxocobalamin. More on reddit.com
🌐 r/B12_Deficiency
18
9
December 13, 2021
B-12 for hair growth?
Yes if you have deficiency, b12 will do wonders for your hair. My body can't naturally take b12 from food, that's why I do injections and since my b12 levels went up to normal range, my hair gained volume a lot. And grows better. But it just took me to my normal level. It's not something that gives you extra boost. Regardless, it's very very important for your hair. More on reddit.com
🌐 r/longhair
3
3
January 17, 2024
Make sure you aren’t B12 deficient! It contributes to hair loss, fatigue and depression (amongst other things) and is a common deficiency with PCOS.
Very vital! Especially if you take metformin, because it depletes vitamin b-12. Liquid form is also better, in my opinion. Vitamin shoppe has a good one with folic acid in it, which benefits hair growth too. More on reddit.com
🌐 r/PCOS
45
141
February 1, 2020
Hair loss. Dermatologist said to take vitamin D and B12. Wear hair in ponytail for work and shower everyday but brush once a week. Does anyone have tips for hair loss and good products to use?
When I was having some hormonal hair loss issues, I used biotin and collagen peptides. More on reddit.com
🌐 r/curlygirl
25
31
September 6, 2020
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Amazon
amazon.com › Folic-acid-b12-NATURAL-FORMULA › dp › B01J0IZP20
Amazon.com: Healthy Supplements LLC Folic Acid with b12 - Anti Gray Hair Natural Formula - Skin and Nails Support (3 Bottles) : Health & Household
ANTI GRAY HAIR NATURAL FORMULA ... of the hair. Made in USA. Scientifically standartirized to the highest level of our active principles. 30-day 100% money-back guaranteed. ... Loading content. ... Loading content. ... Life Extension BioActive Folate & Vitamin B12, Promotes ...
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PubMed Central
pmc.ncbi.nlm.nih.gov › articles › PMC5514791
Prospective Analytical Controlled Study Evaluating Serum Biotin, Vitamin B12, and Folic Acid in Patients with Premature Canities - PMC
We observed that mean serum Vitamin B12 (198.07 ± 88.98 pg/ml in cases vs. 343.07 ± 143.06 pg/ml in controls, P = 0.000), folic acid (6.22 ± 2.46 ng/ml in cases vs. 8.49 ± 4.18 ng/ml in controls, P = 0.01), and biotin (252.71 ± 18.79 pg/ml in cases vs. 266.47 ± 30.44 pg/ml in controls, P = 0.013) levels were significantly lower in cases as compared to the controls. In view of the dark hair and many prevailing myths, premature canities is a significant problem in Asians with profound psychosocial impact.
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PubMed Central
pmc.ncbi.nlm.nih.gov › articles › PMC6380979
The Role of Vitamins and Minerals in Hair Loss: A Review - PMC
A case–control study was conducted on 52 Indian subjects aged < 20 years with premature canities (graying of the hair), with a matched control for each patient. The authors assessed and compared biotin, folic acid and vitamin B12 levels in both groups. The results showed a deficiency of vitamin B12 and folic acid in the patients evaluated and lower levels of biotin without any obvious biotin deficiency in the cases [40]. Folate is another water-soluble B vitamin and includes naturally occurring food folate and folic acid (fully oxidized monoglutamate).
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ScienceInsights
scienceinsights.org › what-vitamin-deficiency-causes-white-hair-b12-and-more
What Vitamin Deficiency Causes White Hair: B12 and More - ScienceInsights
May 11, 2026 - Vitamin B12 deficiency is the most well-established nutritional cause of premature white or gray hair. But it’s rarely the only nutrient involved. Deficiencies in folate (B9), vitamin D, and certain minerals like copper and iron have all been ...
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OmegaQuant
omegaquant.com › home › blog › can a b12 deficiency cause hair loss?
Can a B12 Deficiency Cause Hair Loss? | OmegaQuant
March 27, 2026 - A published literature review suggested ... B vitamin deficiencies—specifically biotin, folate, niacin, riboflavin and B12 may lead to hair loss....
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Hair GP
hairgp.co.uk › home › blog › blood tests decoded: ferritin, b12, vitamin d and your hair
Ferritin B12 Vitamin D and Your Hair Growth Explained - Hair GP
June 1, 2026 - The connection between B12 deficiency and premature greying has been documented in multiple studies, showing that adequate B12 levels help maintain natural hair pigmentation and support strong hair growth.
Find elsewhere
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Healthline
healthline.com › health › beauty-skin-care › reverse-gray-hair
Reverse Gray Hair: 20 Nutrients, Vitamins, Supplements, Herbs, More
May 22, 2019 - When you’re not getting enough vitamin B-9 in your diet, you might experience hair, skin, and nail ... Examples of folate-rich foods include beans, asparagus, leafy greens, and citrus fruits.
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Hair Folli
hairfolli.com › home › hair folli blog: hair growth, beard and scalp care tips › b12 for hair: what it does, what it doesn't, and when it matters
B12 for Hair: What It Does, What It Doesn't, and When It Matters
April 3, 2026 - When B12 levels are sufficient, supplementing more does not improve hair growth. When B12 is deficient, it may contribute to hair thinning and — more significantly — to premature greying.
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PubMed
pubmed.ncbi.nlm.nih.gov › 8435917
Management of hair loss in women
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Avimee Herbal
avimeeherbal.com › home › articles › articles
Vitamin B12 for Gray Hair: Does it Work?
April 18, 2024 - Unfortunately, there is no scientific evidence to suggest that increasing vitamin B12 intake can reverse existing gray hair. Hair that has already lost its pigment is unlikely to regain its natural color.
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Boltpharmacy
boltpharmacy.co.uk › guide › vitamin-b12-deficiency-and-white-hair
Vitamin B12 Deficiency and White Hair: Evidence and Treatment – Bolt Pharmacy
April 17, 2026 - Hair greying is predominantly ... may theoretically influence hair pigmentation, evidence linking B12 deficiency specifically to white or grey hair is limited....
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Stevens-trichology
stevens-trichology.com › hair loss vitamin b12
Hair Loss Vitamin B12 | Advice and Treatment
February 10, 2026 - Vitmain B12 is part of the B complex group. Its essential for hair growth and lack of it can cause hair loss. Causes and treatments are...
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Hims
forhims.co.uk › hims blog › vitamin b12 deficiency and hair loss: what's the connection?
Vitamin B12 Deficiency and Hair Loss: What's The Connection? | hims
But since B12 deficiency is associated with vegans and vegetarians, can vegetarian diet cause hair loss? The vitamin B complex contains eight different kinds of water-soluble vitamin substances, all of which aid in cell metabolism. These eight vitamin substances include thiamine (B1), riboflavin (B2), niacin (B3), pantothenic acid (B5), vitamin B6, biotin (B7), folate (found in leafy greens), and vitamin B12.
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Good Housekeeping
goodhousekeeping.com › beauty & personal care › hair › can you really reverse gray hair? what experts say
Can You Really Reverse Gray Hair? What Experts Say
February 20, 2026 - "At this time there is no scientific evidence that taking vitamins such as vitamin B12, copper, and folate, among others, can reverse gray hair," Dr. Shaver says. "Deficiencies in these vitamins, while rare in normal Western diets, have been ...
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PubMed Central
pmc.ncbi.nlm.nih.gov › articles › PMC5685931
The role of micronutrients in alopecia areata: A Review - PMC
Folate (folic acid or vitamin B9) as a methyl-group donor, and vitamin B12 (cobalamin) as a coenzyme, both contribute to nucleic acid production and thus possess a plausibly important role in the highly-proliferative hair follicle.
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PubMed Central
pmc.ncbi.nlm.nih.gov › articles › PMC6995950
Medication-Induced Repigmentation of Gray Hair - PMC - NIH
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HAIRLOVE
hairlove.com › blogs › hairlove › vitamin-b12-hair-loss
Vitamin B12 and Hair Loss: What the Research Actually Shows – HAIRLOVE
1 month ago - A direct comparison study of 54 patients with diffuse hair loss versus healthy controls found that B12 and folate levels were not significantly different between the two groups.