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Zinc pour Alopecia Areata

F

Basé sur 46 études (3 meta-analyses, 1 RCT) avec 23,495 participants au total. Les résultats sont mitigés entre les études.

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F

En conclusion

While people with alopecia areata often have lower zinc levels, research is mixed on whether zinc supplementation helps — it may support overall immune health but is not a reliable solution for alopecia areata.

  • Lower zinc levels are consistently found in alopecia areata patients
  • Supplementation studies show inconsistent results for hair regrowth
  • Zinc plays a role in immune function, which is relevant to autoimmune hair loss
  • No large-scale RCT specifically tests zinc supplementation for alopecia areata

Key Study Findings

Review
Eyebrow Madarosis: An Updated Review of the Etiology and Management, Part I - Nonscarring Disorders.
Dose: None vs: None Outcome: None Effet: None None

Population: review of nonscarring eyebrow alopecia etiologies and management (1960-2025)

Review
The role of trace elements for the function and health of the skin.
Dose: None vs: Placebo Effet: None None
Meta-Analysis n=4931
Association Between Serum Trace Elements Level and Alopecia Areata: A Systematic Review and Meta-Analysis.
Dose: None vs: Placebo Effet: SMD=-0.93 (vitamin D); SMD=-0.69 (zinc); OR=2.48 (vitamin D deficiency risk) p<0.05
Animal Study n=36
Associations between ionomic profile and metabolic abnormalities in a murine model of sodium sulfide induced …
Dose: Tofacitinib 1 mg/kg vs: Placebo Effet: Differential metabolites and ions identified via OPLS-DA; Mg2+ correlated with CD8+ T cell modulatio None
Systematic Review and Meta-Analysis n=7014
Trace Elements and Risk of Immune-Mediated Skin Disease: A Systematic Review and Meta-analysis.
Dose: None vs: Placebo Effet: Standardized mean differences reported for each element and disease combination (specific values not None

Key Statistics

60

Études

23876

Participants

Mixed

F

Note

Referenced Papers

Acta dermato-venereologica 2023 11 citations
Skin appendage disorders 2020 10 citations
The Australasian journal … 2019 51 citations
Indian journal of … 2019 10 citations
American journal of … 2017 104 citations
Archives of biochemistry … 2016 124 citations
Clinics in dermatology 2016 19 citations
Acta dermatovenerologica Croatica … 2016 6 citations
Journal of the … 2016 4 citations
Annals of dermatology 2013 114 citations
Indian journal of … 2009 79 citations
Clinical and experimental … 2003 6 citations
Zeitschrift fur Hautkrankheiten 1987 3 citations
Giornale italiano di … 1986
Dermatologische Monatschrift 1984 3 citations
The British journal … 1981 58 citations
Zeitschrift fur Hautkrankheiten 1980
Przeglad dermatologiczny 1978 4 citations

Dosage & Usage

mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units

Posologies couramment utilisées

general:
8-11 mg/day
hairloss:
15-30 mg/day

Limite supérieure : 40 mg/day

Posologies étudiées dans la recherche

Posologie Durée Effet N
None -- Neutral --
None -- Mixed --
None -- Negative 4931
None -- Positive --
Tofacitinib 1 mg/kg -- Positive 36
None -- Mixed 7014
None -- Neutral 30
Corticosteroid injections (dose not specified) in transgenic mice -- Positive --

Moment optimal de prise : With meals to minimize stomach upset; separate from iron and calcium by 2 hours

Safety & Side Effects

Effets indésirables signalés

  • Nausea and vomiting (especially on an empty stomach)
  • Metallic taste in the mouth
  • Copper depletion with chronic high-dose use
  • Headache and diarrhea

Interactions connues

  • Copper supplements (zinc inhibits copper absorption at doses >40 mg/day)
  • Tetracycline and quinolone antibiotics (mutual absorption reduction)
  • Penicillamine (zinc reduces absorption of this rheumatoid arthritis drug)

Apport maximal tolérable : 40 mg/day

Consultez toujours votre professionnel de santé avant de commencer tout complément alimentaire.Consultez toujours votre professionnel de santé avant de commencer tout complément alimentaire.

Frequently Asked Questions

Does Zinc help with Alopecia Areata?
Based on 60 studies with 23,876 participants, there is insufficient evidence at this time that Zinc may support Alopecia Areata management. Our evidence grade is F (Evidence Against).
How much Zinc should I take for Alopecia Areata?
Studies have used various dosages. A commonly studied range is 8-11 mg/day. Always consult your healthcare provider before starting any supplement regimen.
Are there side effects of Zinc?
Reported side effects may include Nausea and vomiting (especially on an empty stomach), Metallic taste in the mouth, Copper depletion with chronic high-dose use, Headache and diarrhea. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
How strong is the evidence for Zinc and Alopecia Areata?
We rate the evidence as Grade F (Evidence Against). This rating is based on 60 peer-reviewed studies with 23,876 total participants. The overall direction of effect is mixed.

Related Evidence

Avertissement FDA: Ces déclarations n'ont pas été évaluées par la Food and Drug Administration. Les produits et informations sur ce site ne sont pas destinés à diagnostiquer, traiter, guérir ou prévenir quelque maladie que ce soit. Les notes de preuve présentées sont basées sur notre analyse de la recherche publiée et évaluée par des pairs et ne constituent pas un avis médical. Consultez toujours votre professionnel de santé avant de commencer tout régime de compléments alimentaires.