Raquel Marcos opens the second season of the Z&S School with a webinar on frontier products in the cosmetics industry



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## Raquel Marcos opens the second season of the Z&S School with a webinar on frontier products in the cosmetics industry Raquel Marcos holds a PhD in Chemistry, is an expert in medical products and a science communicator

01/10/2021 |
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* [![ webinar-cosmetics-zs webinarzsschool](/com/noticies/2021/10/1q/webinar-cosmetics-zs/webinarzsschool.jpg)](#)

The new season of the Z&S School, the series of webinars on the chemical industry organised by Zschimmer & Schwarz España and the Universitat Jaume I, was inaugurated by Raquel Marcos, PhD in chemistry and science communicator, who led the webinar "Debunking cosmetic myths: borderline products, where is the limit?

During the event, Marcos analysed some of the products that straddle the fine line between cosmetics and medicines. As she stressed, it is not easy to distinguish between the two types of products as there are many factors to take into account.

The regulation is very clear in this aspect and specifies that the function of a cosmetic product must be limited to cleaning, perfuming, protecting or improving the condition of the skin, hair, nails or oral mucous membranes. In this sense, products that are usually considered cosmetic, such as anti-lice treatments or mosquito repellents, are not. "In fact, they are biocides because their purpose is to eliminate a pest," Marcos explained.

However, some products generate a lot of doubts due to their multiple uses. This is the case, for example, with vaseline, which is considered a cosmetic when it is used to condition the lips, but becomes a medicine if it is used in the health sector. In this case it is the manufacturer who decides on its classification according to the intended use of the product.

Finally, the mode of action may lead to different categories within the same product family. "Within the retinoid family", Marcos explained, "if it acts at a metabolic level, like retinoic acid, it will be a medicine, while retinol and other derivatives work through cascade reactions, and are therefore classified as cosmetic products".

The great doubts that still persist, especially among consumers but also among the professional public, underline the importance of regulatory experts in the chemical industry. Their contribution is necessary to ensure regulatory compliance, safety and quality of chemicals.

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