No fungal-acne, pore-clogging, fragrance or drying-alcohol flags for Petrolatum in our reference data.
Petrolatum is a semi-solid mixture of hydrocarbons derived from petroleum, widely used as an occlusive agent that forms a protective barrier on the skin to reduce transepidermal water loss. It is considered one of the most effective and inert moisturizing ingredients in dermatology.
| Reported effect | How often | Notes |
|---|---|---|
Folliculitis or acneiform eruptions | Uncommon | Heavy occlusion may trap sebum and bacteria, particularly on acne-prone or oily skin. |
Comedogenicity concerns | Rare | Highly refined, USP-grade petrolatum is generally considered non-comedogenic; issues are mostly anecdotal. |
Allergic contact dermatitis | Very rare | True allergy is exceptionally uncommon; reactions are usually attributed to impurities in poorly refined grades. |
Greasy or occlusive feel/cosmetic intolerance | Common | Not a true adverse health effect, but the heavy texture is frequently disliked or poorly tolerated by users. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.