Ingredient dictionary

Butylphenyl Methylpropional

A synthetic fragrance ingredient that gives products a fresh, floral scent, close to lily of the valley. Its main job is scent. It is on the label of 20 products in our library. Checked against our library November 6, 2026.

The catch: it is one of the labelled fragrance allergens, EU scent chemicals brands must name on labels, so check this line if you react to one of them, since they also appear in essential-oil scents.

Labelled fragrance allergens. If you know you react to one of them, this is the line to check. They also show up in products scented only with essential oils.

What Butylphenyl Methylpropional does

Adds a fresh, floral, lily-like scent
Masks the smell of other ingredients
Rounds out the scent of a formula

Butylphenyl Methylpropional is a synthetic fragrance ingredient, made in a lab rather than taken from a plant. Lily of the valley yields no usable essential oil, so perfumers rely on aroma chemicals like this one.

Formulators use it to give shampoos, body washes, cleansers and sunscreens a clean, floral scent that lasts. It does not change how a product feels or cleans. Only a small amount is needed. Because it is a fragrance, it is worth a look if you have fragrance sensitivity.

Good for

Suits people who like a light, floral scent in their shampoo, body wash, or sunscreen, and who have no known fragrance allergy.

Be careful if

It is one of the labelled fragrance allergens, EU scent chemicals brands must name on labels, so check this line if you react to one of them, since they also appear in essential-oil scents.

Frequently asked questions

Is Butylphenyl Methylpropional an allergen?

It can be. Some people react to scent chemicals like this one. If you react to fragrance, or know you react to this ingredient, avoid it and check labels. Most people without fragrance sensitivity have no trouble with it.

Is Butylphenyl Methylpropional natural?

No. It is a synthetic aroma chemical made in a lab. It is not an essential oil, although it is designed to smell like a natural flower. A product can seem natural and still contain it, so check the full ingredient list.