What is essential to check for before beginning a nail service with a client?

Before starting a nail service with a client, it is crucial to check the client’s nail history and any allergies. This information helps ensure the safety and suitability of the products used during the service. Understanding the client's nail history can reveal past issues such as infections, sensitivities, or previous reactions to nail products, which could influence the choice of materials and techniques. Additionally, being aware of any allergies allows the technician to select hypoallergenic options if necessary, preventing adverse reactions and ensuring a positive experience for the client.

Checking for the client’s mood and the latest nail trends, while valuable in different contexts, does not directly impact the safety and suitability of the nail service. Likewise, knowing the time available is important for scheduling but does not address the health and safety of the client during the service itself.