Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.

Definition of Vernix

Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026

Vernix: A white, cheesy substance that covers and protects the skin of a fetus. Vernix is still all over the skin of a baby at birth. Vernix is composed of sebum (skin oil) and cells that have sloughed off the skin of the fetus. More formally known as vernix caseosa.

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