Which action is NOT recommended post service?

Sanitizing the client's hands is not considered a necessary step post-service, as it is typically performed before and during the nail service to maintain hygiene and prevent the spread of bacteria. While maintaining cleanliness is crucial in any nail service, the focus on post-service actions is more centered around ensuring the client's nails and skin are properly cared for after the treatment.

Examining the nails is indeed a recommended action, as it allows the technician to ensure the nails were applied correctly and are in good condition. Providing aftercare instructions is essential for helping clients maintain their nails and skin health after their visit, which can enhance the longevity of the service. Hydrating the skin post-service is also important, as it helps to soothe and moisturize any dry areas, promoting overall skin health. Each of these actions contributes to a better client experience and results, emphasizing the importance of nail care beyond the immediate service.