When is the appropriate time to conduct a patch test for a client with sensitive skin before eyelash lamination?

Conducting a patch test 24 to 48 hours before performing eyelash lamination is essential, particularly for clients with sensitive skin. This timeframe allows for adequate observation of any potential allergic reactions or skin irritations that may occur as a result of the products used during the procedure. By testing in advance, you provide an opportunity to monitor the skin's response and ensure the client’s safety, as reactions may not occur immediately after application but can manifest within this window.

Testing too close to the appointment, such as immediately before the service, doesn't allow enough time to accurately assess any adverse effects. Similarly, testing one week prior may not be practical since a client's skin can change, and results from that long ago may not reflect their current sensitivity or reaction tendencies. Lastly, conducting a patch test only if requested by the client places the onus of safety on them rather than taking proactive measures as a trained professional. Prioritizing a systematic approach ensures both client well-being and professional responsibility.