What it is
Butylphenyl Methylpropional is a synthetic aroma chemical historically widely used in perfumery and cosmetics for its fresh, floral lily-of-the-valley scent. It serves purely as a fragrance ingredient, contributing to the overall scent of a product rather than any skincare function. It is a recognized fragrance allergen subject to labeling and regulatory attention.
Safety & warnings
Butylphenyl Methylpropional is a recognized fragrance allergen and is one of the scent ingredients that must be declared on labels in the EU when present above set thresholds; it can cause contact allergy or sensitization in susceptible individuals. Fragrance-sensitive users and those with reactive skin may prefer to avoid it. Its presence reflects fragrancing rather than any skin benefit, and it is not relevant to comedogenicity.
Origin & sourcing
Synthetic; an industrially manufactured aroma chemical.
Questions everyone asks
What is Butylphenyl Methylpropional?
It is a synthetic fragrance ingredient with a floral, lily-of-the-valley scent, added purely to give products their fragrance.
Is it an allergen?
Yes. It is a recognized fragrance allergen that must be labeled above set levels in the EU and can cause sensitization in some people.