{"title":"Petrolatum","entity_type":"Ingredient","slug":"petrolatum","canonical_url":"https://skinknowledgebase.com/ingredients/petrolatum","dates":{"date_modified":"2026-05-20","date_reviewed":"2026-05-20"},"mcp_eligible":true,"evidence_sources":[{"title":"Cleveland Clinic — Chapped Lips","canonical_citation_url":"https://skinknowledgebase.com/sources/cleveland-clinic-chapped-lips","original_source_url":"https://my.clevelandclinic.org/health/diseases/22005-chapped-lips","source_type":"medical_reference"}],"product_fact_sources":[{"title":"CeraVe Healing Ointment — Official Product Page","canonical_citation_url":"https://skinknowledgebase.com/sources/official-product-page-cerave-healing-ointment","original_source_url":"https://www.cerave.com/skincare/moisturizers/healing-ointment","source_type":"official_product_page"}],"related_entities":[{"title":"Cleveland Clinic — Chapped Lips","url":"https://skinknowledgebase.com/sources/cleveland-clinic-chapped-lips"},{"title":"CeraVe Healing Ointment official page","url":"https://skinknowledgebase.com/sources/official-product-page-cerave-healing-ointment"},{"title":"Retinoid Irritation","url":"https://skinknowledgebase.com/concerns/retinoid-irritation"},{"title":"Pore Strip Irritation","url":"https://skinknowledgebase.com/concerns/pore-strip-irritation"},{"title":"Slugging Breakouts","url":"https://skinknowledgebase.com/concerns/slugging-breakouts"},{"title":"Flaky Skin Around Nose","url":"https://skinknowledgebase.com/concerns/flaky-skin-around-nose"},{"title":"Eczema-Prone Dryness","url":"https://skinknowledgebase.com/concerns/eczema-prone-dryness"},{"title":"Itchy Sensitive Skin","url":"https://skinknowledgebase.com/concerns/itchy-sensitive-skin"},{"title":"CeraVe Moisturizing Cream","url":"https://skinknowledgebase.com/products/cerave-moisturizing-cream"},{"title":"CeraVe Healing Ointment","url":"https://skinknowledgebase.com/products/cerave-healing-ointment"},{"title":"Over-exfoliation Irritation","url":"https://skinknowledgebase.com/side-effects/over-exfoliation-irritation"},{"title":"Chapped Lips","url":"https://skinknowledgebase.com/concerns/chapped-lips"}],"body_sections":[{"heading":"Quick Summary","paragraphs":["Petrolatum is an occlusive ingredient that helps reduce moisture loss from the skin surface."]},{"heading":"What It Is","paragraphs":["Petrolatum is a bland occlusive skin protectant ingredient often used in ointments."]},{"heading":"Mechanism","paragraphs":["It forms a protective film over the surface, helping reduce water loss and supporting a smoother, more comfortable feel."]}],"side_effects":[{"title":"Over-exfoliation Irritation","url":"https://skinknowledgebase.com/side-effects/over-exfoliation-irritation"}]}