What ingredient should be avoided in nail polishes for safety?

Formaldehyde is a chemical compound that has been used in various cosmetic products, including some nail polishes, for its preservative and hardening properties. However, it is classified as a carcinogen by several health organizations, which means it has the potential to cause cancer in humans. Moreover, formaldehyde can cause allergic reactions, skin irritation, and respiratory issues when inhaled.

Due to these health risks associated with formaldehyde, many manufacturers have started creating "formal-dehyde-free" nail products to provide safer options for consumers. This response to safety concerns emphasizes the importance of scrutinizing ingredient lists in beauty products, particularly those that are applied near sensitive areas like the nails and surrounding skin. Hence, avoiding formaldehyde in nail polishes is crucial for ensuring the safety and well-being of users.