Does Sunscreen Block Vitamin D? Here's What a Dermatologist Actually Says

Why It Matters

The guidance reconciles sun-protection and vitamin D concerns, supporting public-health messaging that prioritizes skin cancer prevention without prompting people to forgo sunscreen. Clear advice helps reduce unnecessary fear and directs attention to lifestyle and medical testing for addressing deficiency.

Summary

A dermatologist says sunscreen may slightly reduce vitamin D production but studies have not shown that regular sunscreen use lowers overall vitamin D levels. She attributes widespread deficiency more to indoor lifestyles and individual differences in absorption and metabolism than to sunscreen. Patients with heavy lifelong sun exposure can still have low vitamin D, underscoring the nutrient's complexity. Her recommendation: stay outdoors for health benefits like circadian rhythm and vitamin D, but use sunscreen and practice responsible sun exposure.

Original Description

The myth that sunscreen causes vitamin D deficiency is everywhere — but studies don't back it up. Triple board-certified dermatologist Dr. Mamina Turegano sets the record straight.

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