If a client exhibits an adverse reaction to a product, what is the first step to take?

The appropriate first step when a client exhibits an adverse reaction to a product is to check the Material Safety Data Sheet (MSDS) for the product used. The MSDS contains critical information about the ingredients in the product, potential hazards, first aid measures, and safe handling practices. By consulting the MSDS, the esthetician can determine the nature of the adverse reaction, understand the potential risks involved, and take informed action regarding the client's safety.

Having access to this information is essential as it enables professionals to effectively manage the situation, including identifying if the symptoms are linked to known reactions of any specific ingredients. This also helps in deciding on the best course of action for the client.

While clients’ feedback and stopping the service are important subsequent actions, gathering accurate information from the MSDS should be the first step in ensuring the safety and well-being of the client.