Butylparaben

Also known as: Paraben

High ConcernpreservativeEWG: 7-10

The highest-concern paraben — a strong oestrogen mimicker that accumulates in body tissue.

How it works

Butylparaben has the highest oestrogenic potency among common cosmetic parabens. It accumulates in adipose tissue and has been found in breast tumour samples. It inhibits testosterone production and is linked to developmental and reproductive toxicity in animal models. Many manufacturers have voluntarily removed it from formulations.

Avoid if

Everyone — particularly pregnancy, children, and hormone-sensitive conditions

Commonly found in

Some older formulations of moisturizers and cosmetics

Safety & restrictions

Highest concern paraben. Strong oestrogen mimicker with accumulation potential. EU-restricted in children's products under 3. Recommend choosing butylparaben-free products.

Restricted / banned in:EU (above 0.14% in products for children under 3)

Found Butylparaben in a product? Scan the label to get a full safety analysis.

💄 Scan a Beauty Label →

For informational purposes only. Not medical advice. Consult a dermatologist for personalised guidance.