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Niacinamide pour Acne

A

A systematic review found topical niacinamide (4%) showed comparable efficacy to 1% clindamycin for acne. Oral nicotinamide supports sebum regulation and anti-inflammatory effects through NF-kB modulation.

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A

En conclusion

A systematic review found topical niacinamide (4%) showed comparable efficacy to 1% clindamycin for acne. Oral nicotinamide supports sebum regulation and anti-inflammatory effects through NF-kB modulation.

Key Statistics

15

Études

1200

Participants

Positive

A

Note

Dosage & Usage

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

Posologies couramment utilisées

general:
14-16 mg/day NE (RDA)
skinhealth:
500-1,500 mg/day oral nicotinamide

Limite supérieure : 35 mg/day for niacin (flushing form); nicotinamide well-tolerated up to 3,000 mg/day

Moment optimal de prise : With meals; can be split into 2-3 doses

Safety & Side Effects

Effets indésirables signalés

  • Generally well-tolerated (no flushing unlike niacin)
  • Mild gastrointestinal discomfort at high doses
  • Rare hepatotoxicity at very high doses (> 3,000 mg/day)

Interactions connues

  • Anticonvulsants (carbamazepine — may increase niacinamide levels)
  • Hepatotoxic drugs (potential additive liver effect at high doses)
  • Isoniazid (competes for NAD+ pathways)

Apport maximal tolérable : 35 mg/day for niacin (flushing form); nicotinamide well-tolerated up to 3,000 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 Niacinamide help with Acne?
Based on 15 studies with 1,200 participants, there is strong evidence from multiple clinical trials that Niacinamide may support Acne management. Our evidence grade is A (Strong Evidence).
How much Niacinamide should I take for Acne?
Studies have used various dosages. A commonly studied range is 14-16 mg/day NE (RDA). Always consult your healthcare provider before starting any supplement regimen.
Are there side effects of Niacinamide?
Reported side effects may include Generally well-tolerated (no flushing unlike niacin), Mild gastrointestinal discomfort at high doses, Rare hepatotoxicity at very high doses (> 3,000 mg/day). Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
How strong is the evidence for Niacinamide and Acne?
We rate the evidence as Grade A (Strong Evidence). This rating is based on 15 peer-reviewed studies with 1,200 total participants. The overall direction of effect is positive.

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.