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Updated: May 16, 2025

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Nail Supplements: When, How, and Why?

Ines Zaraa1,2, Bertrand Richert2,3,4

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Summary
This summary is machine-generated.

Nail health supplements like biotin and collagen peptides can improve nail appearance and strength. Dermatologists need to understand these ingredients, their benefits, and risks due to increasing consumer confusion and lack of supplement regulation.

Keywords:
Brittle nailsNail growthNailsSupplements

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Area of Science:

  • Dermatology
  • Nutritional Science
  • Cosmetic Science

Background:

  • The market for nail health supplements is rapidly expanding, leading to consumer confusion about product ingredients and efficacy.
  • Lack of stringent regulation by health authorities means manufacturers are not mandated to conduct pre-market safety and efficacy studies for dietary supplements.
  • Consumers increasingly seek dermatological advice regarding nail health supplements, necessitating clear, evidence-based guidance from healthcare professionals.

Purpose of the Study:

  • To inform dermatologists about the growing landscape of nail health supplements.
  • To review the available evidence on the efficacy and potential risks of common nail supplement ingredients.
  • To provide a basis for evidence-based recommendations to patients regarding nail health supplements.

Main Methods:

  • Literature review of scientific studies on nail health supplements.
  • Analysis of common ingredients such as biotin, collagen peptides, solubilized keratin, MSM, and choline-stabilized orthosilicic acid.
  • Evaluation of reported clinical benefits, mechanisms of action, and potential side effects.

Main Results:

  • Specific ingredients like biotin, collagen peptides, and others have demonstrated improvements in nail appearance, strength, and brittleness.
  • Evidence supporting the efficacy and safety of many supplements is limited due to regulatory gaps.
  • Dermatologists must critically assess available evidence to provide accurate patient counseling.

Conclusions:

  • Dermatologists require up-to-date knowledge on nail supplements to address patient inquiries effectively.
  • Recommendations for nail health supplements should be grounded in robust scientific evidence, acknowledging potential risks.
  • Further research and clearer regulatory guidelines are needed to ensure the safety and efficacy of nail health supplements.