Light liquid paraffin is a highly refined, low-viscosity mineral oil used in skincare as an emollient and occlusive agent that softens skin and reduces transepidermal water loss. It is chemically inert and serves primarily as a base or vehicle ingredient rather than a therapeutic active.
| Reported effect | How often | Notes |
|---|---|---|
| Skin occlusion / greasy feel | Common | Its occlusive nature can leave a heavy or oily sensation on the skin. |
| Folliculitis or comedogenic effects | Uncommon | May contribute to follicular blockage in acne-prone individuals, though highly refined grades are considered low risk. |
| Contact irritation or dermatitis | Rare | Irritation is uncommon as the ingredient is largely inert and non-sensitizing. |
| Allergic hypersensitivity reaction | Very rare | True allergy is exceptionally rare given the purified, non-reactive nature of the oil. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.