Vanillin is an aromatic aldehyde derived from vanilla beans or synthesized, used primarily as a fragrance and flavoring agent in cosmetic formulations. It also exhibits mild antioxidant properties.
| Reported effect | How often | Notes |
|---|---|---|
Allergic contact dermatitis | Uncommon | Can sensitize susceptible individuals, particularly those with fragrance allergies; cross-reactivity with vanilla constituents is possible. |
Skin irritation | Uncommon | Mild redness or stinging, more likely at higher concentrations. |
Contact urticaria | Rare | Immediate hives reported in isolated cases. |
Photosensitivity | Very rare | Rarely reported; not a typical concern at fragrance-level concentrations. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
Peer-reviewed papers on this ingredient, via PubMed.