It is accepted that the chemical butylphenyl methylpropional is safe for use within the concentration limits determined as a fragrance component in rinse-type products in cosmetics. However, given the first-tier deterministic total exposure from the combined use of different types of products, this chemical is not considered safe at recommended concentrations. In the meantime, it is recommended that butylphenyl methylpropion be evaluated within the scope of the Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) directive for the use of the chemical as a fragrance component in rinse-off type products in cosmetics.
Butylphenyl methylpropional is also used as a fragrance ingredient in some non-cosmetic products such as household cleaners and detergents. Since no specific exposure data are available to date to assess exposure following these non-cosmetic uses, they were not included in bulk exposure studies. Therefore, the actual total consumer exposure is thought to be higher than the exposure of cosmetic products alone.
Briefly, butylphenyl methylpropional is an aromatic aldehyde used as a fragrance compound in both cosmetic and non-cosmetic products. When this compound is present at a concentration above 10 ppm for left-over products and 100 ppm for rinse-off products, it should be labeled. Relevant organizations are of the opinion that butylphenyl methylpropional is not safe to use as a fragrance in cosmetic products. In addition, no definite conclusion could be reached regarding the mutagenicity. In this case, it is considered to carry a risk of inducing skin sensitization in humans.
Recent research reveals that butylphenyl methylpropional, or Lilial with its trade name, is a harmful fragrance component for humans. Butylphenyl methylpropional, which is widely used as a fragrance in many popular beauty products, has also been among the prohibited ingredients in cosmetic products in European Union countries.
Butylphenylmethylpropional (Lilial), part of the aldehyde family, has a floral scent reminiscent of lily of the valley. The plant from which the chemical smells is also known for its toxicity. Lilial has traditionally been used in perfumes, shampoos, conditioners, hair styling products, body washes, and more. Recently, it has been banned in European Union countries due to its classification as carcinogenic, mutagenic, or reprotoxic.
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