Butylphenyl Methylpropional

BYOO-til-FEN-ul meth-ul-PRO-pee-oh-nal

Fragrance 2/10 Safety Not CGAvoid Synthetic Vegan

What Is Butylphenyl Methylpropional?

A synthetic fragrance ingredient with a strong lily-of-the-valley scent. It was widely used in hair and personal care products until being banned by the EU in 2022 due to reproductive toxicity concerns.

Source: Synthetic fragrance compound

Origin: Synthetic

Also known as: Lilial, Lily Aldehyde

What Does Butylphenyl Methylpropional Do to Your Hair?

Provides a fresh, floral lily-of-the-valley fragrance to hair products. Has no functional benefit beyond scent. Used solely as a perfuming ingredient.

Best For

None (fragrance only)

Not Recommended For

All hair types, pregnant women, children

Concentration Matters

Trace to 0.5% in fragranced products

Hair Type Compatibility

1A Straight Fine
1B Straight Medium
1C Straight Coarse
2A Wavy Fine
2B Wavy Medium
2C Wavy Coarse
3A Curly Loose
3B Curly Tight
3C Curly Corkscrew
4A Coily S-Shaped
4B Coily Z-Shaped
4C Coily Tight

Method Compatibility

Curly Girl (CG) Method: Avoid
CG Avoid

Safety & Regulation

2/10
AvoidCautionSafe

Banned in the EU as of March 2022 due to classification as a reproductive toxicant (CMR substance). Can cause skin sensitization. Should be avoided entirely, especially by pregnant women.

FDA Status: Banned

EU banned this ingredient in cosmetics effective March 2022 due to reproductive toxicity classification. Still permitted in some non-EU markets but being phased out.

EWG Score: 8/10

HairAide Verdict

Banned in the EU for good reason. If you see Lilial on a product label, that product is outdated or not compliant with current EU safety standards. Choose fragrance-free or naturally scented alternatives.

Products That Contain Butylphenyl Methylpropional

Fragranced shampoos, conditioners, styling products (being removed)

Alternatives to Butylphenyl Methylpropional

If you want to avoid Butylphenyl Methylpropional, look for products with these ingredients instead:

Natural essential oils, synthetic musk alternatives, linalool

Frequently Asked Questions

Is Butylphenyl Methylpropional safe for hair?

Butylphenyl Methylpropional has a safety rating of 2/10 and may be problematic for many hair types. Banned in the EU as of March 2022 due to classification as a reproductive toxicant (CMR substance). Can cause skin sensitization. Should be avoided entirely, especially by pregnant women.

Is Butylphenyl Methylpropional bad for curly hair?

Butylphenyl Methylpropional is not CG-method approved. Curly hair types may want to avoid this ingredient or use products containing it sparingly.

Is Butylphenyl Methylpropional CG-method approved?

No, Butylphenyl Methylpropional is not approved for the Curly Girl method.

What can I use instead of Butylphenyl Methylpropional?

Some alternatives to Butylphenyl Methylpropional include: Natural essential oils, synthetic musk alternatives, linalool

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