Inulin is a plant-derived fructan polysaccharide used in skincare as a prebiotic to support the skin's microbiome and as a mild humectant and texture-enhancing ingredient. It is generally considered well tolerated and is most often found in microbiome-targeted or moisturizing formulations.
| Reported effect | How often | Notes |
|---|---|---|
Mild transient irritation or redness | Rare | Occasional sensitivity reported in individuals with reactive skin. |
Contact allergy / allergic dermatitis | Very rare | Isolated reports; inulin is considered a low-allergenicity ingredient topically. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
Peer-reviewed papers on this ingredient, via PubMed.