Ingredient

Butylphenyl Methylpropional

A synthetic aroma chemical, commonly known as Lilial, with a strong floral lily-of-the-valley (muguet) scent that was used to add fragrance.

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Good to know

Fragrance allergen
One of the fragrance compounds the EU requires to be declared, because a minority of people react to it.

What it does

moderate evidence

It is BANNED from cosmetics in the EU as of March 2022 after being classified as a CMR substance toxic to reproduction; it is also a recognised fragrance allergen that can cause contact dermatitis in some people.

Benefits

Historically added a lily-of-the-valley floral note to a formula (now banned in EU cosmetics)

Side effects

Banned in EU cosmetics since March 2022 as a CMR substance (toxic to reproduction)
Can cause allergic contact dermatitis (redness, itch, rash) in fragrance-sensitised people

Who it's for

No one in the EU - it is prohibited in cosmetic products; otherwise only those wanting scent who are not fragrance-sensitive.

Who should be careful

Everyone should avoid it in cosmetics (EU-banned as a reproductive toxicant); especially people with fragrance allergy or a known reaction to this allergen.