Nail care products can contain potentially harmful ingredients, but are allowed on the market because they are safe when used as directed. It is important to use nail products safely, following labeled directions and paying attention to any warning statements. The labels of all cosmetics, whether marketed to consumers or salons, must include a warning statement whenever necessary or appropriate to prevent a health hazard that may occur with use of the product.

Here are some positive and negative details about natural nails and spa products:

Positive details:

• Some non-toxic nail polish brands are available that are free of certain toxic chemicals.
• Natural nails are a barrier that prevents absorption of harmful ingredients.
• Some nail products are formulated with ingredients derived from natural sources.

Negative details:

• Many nail products contain potentially harmful ingredients, such as acetonitrile, formaldehyde, and toluene.
• Artificial nails are composed primarily of acrylic polymers, and when the reaction is completed, traces of the monomer are likely to remain in the polymer.
• Some nail products have been associated with adverse effects, such as contact dermatitis, onycholysis, and childhood injuries.

It is important to note that the list of ingredients can vary between products and can potentially be influenced by individual product characteristics such as polish color, texture, drying time, or other product features. Therefore, it is recommended to read the labels and ingredient lists of nail care products carefully before using them.