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INCI name: Benzylhemiformal.
Function: Preservative.
Origin: Synthetic.
Concentration allowed by European regulations : Up to 0.15% of the finished product.
Where to find it / them? : /
Risks to health: Potential allergen, potential skin irritant (formaldehyde releaser).
Risks to the environment : /
More information : Only allowed in rinse-off products. Prohibited in aerosols for their proven carcinogenic effect by respiratory route.