Experts Warn Some Chemicals in Beauty Products Could be Carcinogens
When it comes to beauty products, many of us assume that the ingredients listed on the bottle are safe, but dermatologists and aesthetic experts are warning that some of these chemicals can actually be harmful to our health. Not only can they cause skin irritation, but they may also disrupt hormones and potentially even be carcinogens.
One such chemical is benzophenone, commonly found in sun creams, nail polish, foundation, and even some shampoos. While it is designed to protect the skin from UV light and preserve the scent and colors of products, studies suggest that it can act as a hormone disruptor and potentially hinder growth, fertility, and reproduction. Furthermore, benzophenone has been shown to be toxic to liver cells in animal studies.
Carbon black, a dark powder used as a pigment in eyeliner, mascara, and lipstick, is another ingredient to be wary of. Dermatologists warn that it can be irritating to the skin, particularly in products meant for oily skin. However, it is not known to be toxic.
Ethanolamines, which are commonly used in toiletries such as soap, shampoo, and shaving cream, are also a cause for concern. While they are not banned substances and can also be found in cosmetics, there are fears that they could be carcinogenic. Under certain circumstances, ethanolamines can react to form nitrosamines, which are potentially carcinogenic. This reaction can occur when ethanolamines are used in the same product as preservatives.
Formaldehyde, found in nail polish, hair straightening products, and lash glue, is another chemical to watch out for. It is added to products as a preservative to increase shelf-life and prevent bacterial contamination. However, formaldehyde can irritate the skin and cause contact dermatitis. Furthermore, it has been classified as a carcinogen by the International Agency for Research on Cancer, with links to leukemia and tumors in workers exposed to high levels of the chemical.
Fragrance is another broad term found in beauty products that can trigger skin irritation and contact allergic dermatitis. Specific scents such as cinnamon, sandalwood, tea tree, citronella, and linalool are known triggers. It can be challenging to identify whether a product contains a fragrance that will cause a reaction, as it is often listed as “fragrance” or “parfum” in the ingredients.
Homosalate is a widely-used chemical in sun creams and skincare products with SPF. While guidelines have been set on the safe levels of homosalate that can be used, there are concerns that it can cause serious allergic reactions and harm aquatic life by damaging coral reefs. It has been suggested that homosalate is a hormone-disruptor, potentially affecting thyroid function and fertility.
Hydroquinone, found in skin lightening products and hair dyes, can lead to skin irritation and burns in high concentrations. Although it is only available in prescription products in the UK, consumers should be cautious when purchasing products from countries where it is not banned.
Mica, which gives products like bronzer and highlighter a shimmering finish, can be contaminated by heavy metals and irritate certain skin types. Inhaling mica can also exacerbate respiratory problems. Responsible supply chains are important to limit contamination.
Octinoxate, a chemical UV filter commonly used in sun creams, shampoo, nail polish, and moisturizers, is suspected of interfering with hormones by mimicking estrogen. While the impact on humans is not fully understood, it can cause skin irritation and allergic dermatitis. Additionally, it may harm marine life and cause coral bleaching.
Parabens, commonly used preservatives in a range of beauty and hair products, are another cause for concern. While they are used to prevent the growth of bacteria, molds, and yeast, many dermatologists caution against their use.
In light of these potential dangers, it is essential to be cautious when choosing beauty products and to opt for those with fewer harmful chemicals. Dermatologists recommend patch testing on a small area of skin before using a product if there are concerns about a potential reaction. It is also important for skincare companies to have responsible supply chains to limit contamination and ensure the safety of their products.