In our reference data, Linum Usitatissimum (Linseed) Seed Oil can feed Malassezia (fungal acne).
Linum Usitatissimum (Linseed/Flaxseed) Seed Oil is a plant-derived oil rich in polyunsaturated fatty acids, notably alpha-linolenic acid (omega-3), used in cosmetics as an emollient and skin-conditioning agent to soften skin and support the lipid barrier. It is valued for its fatty acid profile but is prone to oxidation, which can affect stability and irritancy.
| Reported effect | How often | Notes |
|---|---|---|
Allergic contact dermatitis / sensitization | Rare | Reported occasionally; oxidized constituents may increase sensitizing potential. |
Skin irritation or redness | Uncommon | Generally mild; more likely with rancid or oxidized oil. |
Comedogenicity / breakouts | Uncommon | Considered low-to-moderate comedogenic for some acne-prone users. |
Cross-reactivity in those with seed/plant allergies | Very rare | Possible in individuals with specific botanical sensitivities. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
Peer-reviewed papers on this ingredient, via PubMed.