Quillaja Saponaria Bark Extract is derived from the soap bark tree and is rich in saponins that provide natural foaming, emulsifying, and mild cleansing properties. It is commonly used as a gentle surfactant and as a foam booster in cleansers and shampoos.
| Reported effect | How often | Notes |
|---|---|---|
Skin irritation | Uncommon | Saponins can be mildly irritating, especially at higher concentrations or on sensitive skin. |
Allergic contact dermatitis | Rare | Sensitization to plant-derived saponins has been reported occasionally. |
Mucosal/eye irritation | Uncommon | Saponins may cause stinging or irritation if products contact the eyes. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.