Curcuma longa (turmeric) extract contains curcuminoids that act as antioxidant and anti-inflammatory agents, and are used in skincare for brightening and soothing. It may also have mild antimicrobial properties.
| Reported effect | How often | Notes |
|---|---|---|
| Skin staining (yellow discoloration) | Common | Curcumin pigment can temporarily stain skin and fabrics. |
| Contact dermatitis / irritation | Uncommon | Redness, itching, or stinging in sensitive individuals. |
| Allergic contact dermatitis | Rare | Sensitization to curcumin reported in patch-test studies. |
| Contact urticaria | Very rare | Isolated case reports of hives following topical exposure. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
Peer-reviewed papers on this ingredient, via PubMed.