DermUV

Vitamin D & Sun

UVB triggers vitamin D synthesis in the skin. A few minutes of midday sun a few times a week is usually enough — well below burn threshold.

Vitamin D & Sun explained

Vitamin D production saturates quickly; further exposure adds DNA damage but no extra D. AAD prefers brief sub-burn exposure or supplementation over tanning. Glass blocks UVB, so indoor sunlight does not produce vitamin D.

Related terms

Terms related to Vitamin D & Sun connect the UV and sunscreen topic cluster.

UVB
Minimal Erythemal Dose (MED)

Related DermUV pages

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