In our reference data, Isostearic Acid can feed Malassezia (fungal acne).
Isostearic acid is a branched-chain fatty acid used in cosmetic formulations as an emollient, co-emulsifier, and dispersing agent that improves spreadability and texture. It is valued for its oxidative stability and liquid consistency compared to straight-chain stearic acid.
| Reported effect | How often | Notes |
|---|---|---|
| Mild skin irritation | Uncommon | Possible with high concentrations or sensitive/compromised skin. |
| Allergic contact dermatitis | Rare | Isolated sensitization reports; uncommon for fatty acids. |
| Comedogenicity/pore congestion | Rare | Low comedogenic potential reported in most assessments. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.