What is the purpose of a patch test with eyelash extension adhesives?

The primary purpose of a patch test with eyelash extension adhesives is to check for allergic reactions. This precautionary measure is essential because some clients may have sensitivities or allergies to the ingredients present in the adhesive. By conducting a patch test, a small amount of adhesive is applied to a discreet area of the skin, typically on the forearm, which allows the technician to monitor for any adverse reactions such as redness, swelling, or itching over a specific period. Identifying these reactions before the full application of eyelash extensions can help prevent discomfort or more severe allergic responses during the actual service.

Assessing lash length, determining the cost of the service, and ensuring comfort during application are not the primary purposes of a patch test and do not address the critical issue of client safety regarding adhesive use.