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Supplements for Vitiligo: What the Trials Show and What Works Better

For vitiligo, no supplement brings back skin color on its own; prescription creams and narrowband UVB light therapy work best (grade A). Of the supplements, ginkgo by mouth slowed spreading in one trial of 47 people (grade C), and Polypodium leucotomos fern extract added repigmentation to light therapy in one small trial, with a trend in a second (grade C). Vitamin D, B12 with folic acid, zinc and antioxidant pills are unproven. Start with a dermatologist.

Published How we grade evidenceEditorial policy

Vitiligo is an autoimmune disease: the immune system destroys melanocytes, the skin cells that make pigment, leaving milky-white patches (NIAMS). In a 2026 survey of 224 adults with vitiligo, 41.1% used over-the-counter products, most often camouflage makeup, vitamin B12, vitamin D, zinc, ginkgo and vitamin C (Enwereji 2026). A 2025 review called such nutritional approaches still exploratory (Diaz 2025).

The short version

  • Prescription treatment comes first. Steroid or calcineurin-inhibitor creams, ruxolitinib cream and narrowband UVB light therapy have the best evidence. Grade A (Rosmarin 2022; Bae 2017; Prajapati 2025).
  • Ginkgo by mouth halted spreading more often, and brought more repigmentation, than placebo in one small trial. Grade C (Parsad 2003).
  • Polypodium leucotomos, a fern extract, added repigmentation to light therapy in one small trial, with a non-significant trend in a second; it is untested without light. Grade C (Pacifico 2021; Middelkamp-Hup 2007).
  • Vitamin D: low levels are common in vitiligo, but the trials that found a benefit used an injection or studied a cosmetic-triggered form. Grade C (Upala 2016; Kim 2024; Watabe 2018).
  • B12 with folic acid, zinc, and alpha-lipoic acid showed no clear added benefit in controlled trials. Grade C (Tjioe 2002; Yaghoobi 2011; Sun 2021).

What works best for vitiligo?

Treatment from a dermatologist. Grade A. A 2025 Canadian consensus lists steroid creams, calcineurin-inhibitor creams (immune-calming ointments such as tacrolimus) and ruxolitinib cream as first choices, with narrowband UVB (NB-UVB, a light-box treatment) or excimer light (a targeted UVB lamp or laser) alone or combined. The panel called the data on supplements limited (Prajapati 2025, full text). Ruxolitinib cream, which blocks an immune signal called JAK, beat a plain cream in a phase 2 trial in adults (Rosmarin 2020) and in two phase 3 trials of 674 people aged 12 and older: at 24 weeks, 29.8% and 30.9% had at least 75% facial improvement, against 7.4% and 11.4% (Rosmarin 2022).

With NB-UVB, 35.7% of 540 patients in 9 studies had marked (75% or more) repigmentation after 12 months; the face and neck did best, and the hands and feet had no marked responses (Bae 2017). Cochrane reviewers found that combined treatments generally did better (Whitton 2015). Sunscreen and cover-up makeup help too (NIAMS).

Does ginkgo biloba help vitiligo?

Grade C, from one small trial. In it, 52 people with limited, slowly spreading vitiligo took ginkgo extract by mouth or a placebo, double-blind. Of the 47 who could be assessed, spreading stopped significantly more often on ginkgo, and 10 had marked to complete repigmentation against 2 on placebo (Parsad 2003); Cochrane put the risk ratio for more than 75% repigmentation at 4.40 (Whitton 2015). A 12-week open study with no placebo group, in 12 people aged 12 to 35, found only a small change: the VASI score (0 to 100, how much skin has lost color) fell from 5.0 to 4.5 (Szczurko 2011). Our ginkgo page lists these 2 studies without a grade yet; one placebo-controlled trial makes it grade C.

Does Polypodium leucotomos help vitiligo?

Grade C, and only as an add-on to NB-UVB. In a 6-month trial of 44 people with generalized vitiligo, all having NB-UVB twice a week, 47.8% of those also taking the fern extract by mouth responded, against 22% on placebo (Pacifico 2021). An earlier trial of 50 people found more head and neck repigmentation (44% vs 27%), but the gap was not statistically significant except in people who attended more than 80% of their light sessions (50% vs 19%) (Middelkamp-Hup 2007). A 2025 review found only 3 vitiligo studies of the extract (Zundell 2025). Every controlled trial we found gave it with light therapy, so it is untested without light.

Does vitamin D help vitiligo?

Grade C. Low vitamin D is common in vitiligo but may not be a cause. In 7 studies (1,200 adults), blood levels averaged 7.45 ng/mL lower than in people without vitiligo (Upala 2016), and a 31-study review agreed (Varikasuvu 2021). A genetic (Mendelian randomization) analysis found no sign that lower vitamin D raises the risk of vitiligo (Song 2021).

The treatment trials are small. In 26 people with low vitamin D (under 20 ng/mL) having excimer laser, vitamin D injected into the muscle improved VASI scores by 83.6% against 54.7% over 6 months (Kim 2024); that was an injection, not a pill. By mouth, 5,000 IU a day for 5 months improved scores in 48 women whose vitiligo was set off by a skin-lightening cosmetic (rhododendrol), a different condition from common vitiligo (Watabe 2018). We could not read the result of a 2023 placebo-controlled trial of oral vitamin D with NB-UVB (no abstract or open full text) (Garza-Davila 2023). Correcting a measured deficiency is reasonable for its own sake.

Upper limit for adults: 4,000 IU of vitamin D a day, because more can raise blood calcium too high; take more only with blood tests or your clinician's advice (NIH ODS; check your stack). See our vitamin D page.

Do vitamin B12 and folic acid help vitiligo?

Grade C: no clear benefit in the only controlled trial, where 27 people with long-standing, stable vitiligo had NB-UVB three times a week for a year, with or without B12 and folic acid, and repigmentation was no better with the vitamins (Tjioe 2002). An older 2-year study with no comparison group gave 100 people both vitamins and told them sun might help; 52 had clear repigmentation, mostly on sun-exposed skin (Juhlin 1997). Without a control group, the sun alone could explain much of that. Our protocol page's claim of repigmentation with these vitamins plus sun rests on that uncontrolled study.

People with vitiligo do have lower B12 on average (22 studies, 1,448 patients), while folate was no different (Tsai 2019), so a B12 test makes more sense than taking both just in case. Upper limit for adults: 1,000 mcg of folic acid a day, because more can hide a B12 deficiency while its nerve damage goes on; take more only with blood tests or your clinician's advice (NIH ODS; check your stack). See our vitamin B12 and folic acid pages.

Do antioxidants help vitiligo?

Grade C, mixed, and only tested alongside NB-UVB. In 28 people who finished a trial, a blend of alpha-lipoic acid, vitamins C and E and polyunsaturated fats led to more than 75% repigmentation in 47% against 18% on placebo (Dell'Anna 2007). Vitamin E gave marked to excellent repigmentation in 72.7% against 55.6% on light alone among 20 people, with no significance test given for this (Elgoweini 2009). But in the largest trial, 133 people in China, 6 months of alpha-lipoic acid added nothing (Sun 2021); in a 50-person trial with steroid injections for all, it sped early results but made no difference by 6 months (Li 2016). See our vitamin E and alpha-lipoic acid pages.

Does zinc help vitiligo?

Grade C, no clear difference. In a trial of 35 people aged 11 to 59, all used steroid cream and half also took zinc sulfate by mouth. After 4 months the average response was 24.7% with zinc and 21.43% without, not a statistically significant gap (Yaghoobi 2011; ages and length from the full text). Zinc levels run lower in vitiligo (41 studies, 3,353 patients) (Anam 2024): a reason to test, not proof that pills help. Our protocol page says some studies show a benefit; the one controlled trial we found did not.

Upper limit for adults: 40 mg of zinc a day, because more can cause copper deficiency; take more only with blood tests or your clinician's advice (NIH ODS; check your stack). See our zinc page.

Does L-phenylalanine help vitiligo?

Grade B, mostly as an add-on to UVA light under a dermatologist's care. A 2008 review found 4 controlled trials, one of phenylalanine alone and three with light therapy, and all reported benefit, but the trials were small and the field is of poor quality (Szczurko 2008). In an open study of 149 people and a 32-person double-blind trial, this amino acid taken by mouth before UVA light gave repigmentation of at most 77% and 60%; higher doses did not work better (Siddiqui 1994). In phenylketonuria (PKU), an inherited condition, phenylalanine builds up to harmful levels (MedlinePlus).

Is there a melanin supplement for vitiligo?

No. We found no trial of any swallowed melanin product in vitiligo (our PubMed searches, 8 November 2026). Skin color is made inside melanocytes, the very cells vitiligo destroys (NIAMS), and no study we found shows that melanin taken by mouth reaches them. Afamelanotide, a prescription implant that copies a skin-darkening hormone, has been tested with NB-UVB in adults (Lim 2015), but it is a drug, not a supplement. Unlicensed "melanotan" tanning injections sold online are untested copies; case reports link them to changing moles, and 4 describe melanomas, though cause is unproven ( Grade D for that harm) (Habbema 2017).

How do the options compare?

OptionWhat trials foundSize of effectGrade
Ruxolitinib cream (prescription)More facial repigmentation29.8% vs 7.4% (Rosmarin 2022)A
NB-UVB light therapyMarked repigmentation at a year35.7% of 540 (Bae 2017)A
Ginkgo by mouthLess spreading, more repigmentation10 vs 2 of 47 (Parsad 2003)C
Polypodium leucotomos with NB-UVBMore responders47.8% vs 22% (Pacifico 2021)C
Antioxidants with NB-UVBMixed47% vs 18%; none in 133 (Dell'Anna 2007; Sun 2021)C
Vitamin DBetter scores by injection (both groups had excimer laser)83.6% vs 54.7% (Kim 2024)C
B12 with folic acidNo added benefitNone (Tjioe 2002)C
Zinc with steroid creamNo clear difference24.7% vs 21.43% (Yaghoobi 2011)C

What we'd skip

  • "Melanin" pills or drops. We found no vitiligo trial of any, and pigment is made inside the cells vitiligo destroys (NIAMS).
  • Khellin pills. Of 28 patients given this plant compound with UVA light, 25 by mouth, 7 had mild liver-enzyme rises and stopped (Ortel 1988). Painted on with sunlight, it did no better than a placebo solution in 41 people (Orecchia 1992).
  • Bakuchi (Psoralea corylifolia) and other psoralen herbs on your own. A 2021 safety review found reports of blistering and acute hepatitis with bakuchi, and burns and light reactions with psoralens (Hussain 2021).

Safety and interactions

  • Ginkgo. The most common side effects are dizziness, stomach upset and headache, and it may raise bleeding risk with blood thinners such as warfarin (NCCIH): ask your prescriber or pharmacist first.
  • Polypodium leucotomos. Trials reported mild redness and swelling (Hussain 2021). No interaction studies were found.
  • Light-sensitizing herbs: bakuchi has caused blistering with sun or a light box, and acute hepatitis; khellin has caused skin redness and raised liver enzymes (Hussain 2021; Ortel 1988).
  • Phenylalanine is off-limits with PKU (see its section).
  • Vitamin D, folic acid and zinc have adult upper limits (see each section). Taking several? Check your stack against the upper limits.
  • Don't stop a prescribed medicine on your own; ask the prescriber or pharmacist. If you are pregnant, breastfeeding, or under 18, ask a clinician.

When to see a doctor

  • New white patches, or patches spreading fast. See a dermatologist; fast-spreading vitiligo may need stronger, whole-body treatment (Prajapati 2025).
  • Eye pain, red eyes, blurry vision, floaters or light sensitivity. See an eye doctor right away: vitiligo can come with uveitis, an inflammation inside the eye (NIAMS; NEI).
  • Signs of thyroid trouble. Across 37 studies (78,714 people with vitiligo), thyroid disease was far more common than without vitiligo (odds ratio 3.932), and the authors advise routine thyroid antibody tests (Fan 2018). See our thyroid health page.
  • Low mood or distress about your skin: NIAMS suggests a mental health professional (NIAMS).
  • A mole that changes, or a new dark spot, especially after tanning injections (Habbema 2017).
  • Pregnant, breastfeeding or under 18: ask a clinician before you start any supplement.

FAQ

What is the best supplement for vitiligo? None brings back color on its own. Ginkgo by mouth has the most direct evidence, one trial of 47 people with slowly spreading vitiligo (grade C); prescription creams and NB-UVB light therapy do more (grade A).

Do vitamin B12 and folic acid help vitiligo? In the only controlled trial, 27 people having NB-UVB light therapy for a year did no better with B12 and folic acid than without (grade C). More than 1,000 mcg of folic acid a day can hide a B12 deficiency.

Is vitiligo caused by a vitamin deficiency? People with vitiligo average lower vitamin D, B12 and zinc in observational studies, but a genetic analysis found no sign that low vitamin D causes it. A blood test shows whether you need to correct a deficiency.

Does vitamin D help vitiligo? Grade C. One trial gave vitamin D by injection with excimer laser to 26 people with low vitamin D; another gave pills to 48 women whose vitiligo was set off by a skin-lightening cosmetic. Both found better scores.

Is there a melanin supplement for vitiligo? No trial has tested one. Melanin is made inside the pigment cells that vitiligo destroys, and we found no study showing that swallowed melanin reaches them.

Sources

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