Which of the following is banned by the FDA for use in salons?

Methyl Methacrylate (MMA) is banned by the FDA for use in nail salons due to its potential to cause harm to both clients and technicians. MMA has been found to cause serious adverse effects, including allergic reactions, skin irritations, and severe damage to the natural nail. The substance can adhere too strongly to the nail plate, making it difficult to remove without causing injury. Furthermore, its vapors can be harmful if inhaled, creating potential health risks in poorly ventilated salon environments.

The use of MMA in salons has been a significant concern in the industry, leading to regulatory actions aimed at protecting public health. In contrast, other types of methacrylates, like ethyl methacrylate, are still recognized as safer alternatives and are allowed for use in products, provided certain safety guidelines are followed.