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Dietary Supplements:

When to Use Them, and When to Avoid Them

Introduction

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1. Biotin (Vitamin B7)

Considerations:

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Potential Risks:

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The Bottom Line:

2. Zinc

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Considerations:

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Potential Risks:

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The Bottom Line:

3. Vitamin C

Considerations:

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Potential Risks:

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The Bottom Line:

4. Nicotinamide (Vitamin B3)

Considerations:

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Potential Risks:

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The Bottom Line:

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For More on

Preventive Dermatology 

and the Latest Research

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© 2025 by Rajani Katta

MD

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