New Analytical Method Reveals Hazardous Compounds in Cosmetics

Recent studies conducted by scientists at Justus Liebig University Giessen (JLU) have unveiled alarming findings regarding hazardous compounds present in cosmetics, skincare products, and perfumes. The research, published in the *Journal of Chromatography A* and *Analytica Chimica Acta* in June 2025, indicates that many lifestyle products contain harmful substances that have eluded detection in prior analyses and remain unregulated by current safety standards.

The team, led by Professor Gertrud Morlock, utilized a novel analytical methodology to assess 140 skincare and cosmetic products across 20 segments, in addition to over 40 fragrances. Their investigations revealed a range of hazardous compounds, including mutagenic, genotoxic, cytotoxic, and neurotoxic substances that could significantly disrupt hormonal balance and affect the skin microbiome. Notably, these compounds often enter the bloodstream through microcracks in the skin or wounds, raising concerns about their potential health impacts.

"We have expanded the current substance separation with effect detection and can now see for the first time how many hazardous compounds are present in such everyday products," stated Professor Morlock, a leading expert in food science at JLU. The new methodology not only identifies known toxins but also uncovers previously unknown hazardous compounds, including ingredients, contaminants, impurities, and degradation products. This advancement is crucial, as traditional analytical methods often overlook harmful substances that do not fall within the conventional focus of testing.

The implications of this research are significant. The studies indicate that a substantial number of products, including lipsticks, skincare creams, and various other cosmetics, contain relevant amounts of these hazardous compounds, which could pose risks to consumers who apply these products multiple times daily. Furthermore, the environmental impact is also concerning, as these compounds may be washed off and affect ecosystems.

In response to these findings, the JLU researchers have developed an open-source tool named 2LabsToGo-Eco, which aims to facilitate better testing of hazardous compounds in lifestyle products and cosmetics. This tool is designed to help manufacturers and regulatory authorities identify and minimize exposure to such harmful substances.

The research underscores the urgent need for regulatory bodies to reassess existing safety standards for cosmetics and skincare products. Current regulations do not adequately reflect the complexities of these products, nor do they account for the potential risks associated with new, unidentified hazardous compounds.

Several industry experts echo this sentiment. Dr. Maria Romero, a researcher at the University of Giessen, emphasized that proactive measures are essential to ensure consumer safety. "Our findings highlight the necessity of a minimization concept that continuously reduces hazardous compounds in consumer products, thereby enhancing both consumer protection and environmental safety," she stated.

Moreover, the research elucidates that some products labeled as free from mineral oil residues exhibited significantly lower levels of genotoxic and mutagenic substances, suggesting that safer alternatives are available.

As consumers become increasingly aware of the ingredients in their personal care products, the demand for transparency and safety will likely grow. The findings from JLU could catalyze a shift towards more rigorous testing and regulation in the cosmetics industry, ultimately benefiting public health and environmental integrity.

In conclusion, the studies conducted by JLU not only reveal the presence of hazardous compounds in widely used products but also pave the way for improved safety standards and practices in the cosmetics industry. The need for comprehensive regulatory action is evident, as these findings challenge the current safety paradigm and call for urgent reform to protect consumers and the environment alike.