Back to Ingredient Dictionary

Butylphenyl Methylpropional

Description

Butylphenyl Methylpropional, also known as Lilial or p-BMHCA, is a synthetic fragrance ingredient commonly used in cosmetics and personal care products. This aromatic aldehyde imparts a fresh, floral scent reminiscent of lily of the valley. Despite its widespread use, Butylphenyl Methylpropional has come under scrutiny due to concerns about its safety profile.

The European Union has classified this ingredient as a Category 1B reproductive toxicant, leading to its ban in cosmetic products within the EU as of March 2022. This decision was based on studies suggesting potential adverse effects on fertility and fetal development. In response, many global manufacturers have begun phasing out its use in their formulations.

Butylphenyl Methylpropional can cause skin sensitization in some individuals, leading to allergic contact dermatitis. Its presence in products is typically indicated on labels as "Butylphenyl Methylpropional" or "Lilial." While still permitted in some regions, including the United States, consumers and formulators are increasingly seeking alternatives to this ingredient. When present in products, it is generally used in low concentrations, typically below 1%, to impart fragrance without overwhelming other scent components.