What is a common sign that a client is allergic to the adhesive used for eyelash extensions?

The presence of redness and swelling around the eyes is a common sign that a client may be experiencing an allergic reaction to the adhesive used for eyelash extensions. This reaction typically occurs in the delicate skin surrounding the eyes, where the adhesive is applied. When a client is allergic to a constituent of the adhesive, histamines are released in the body, leading to inflammation and swelling. As a result, these physical symptoms serve as indicators that the client's body is reacting negatively to the adhesive.

In contrast, while itching and redness can also suggest some form of irritation, they aren't always as definitive for an allergic reaction compared to the combination of redness and swelling specifically around the eyes. Puffiness around the cheeks is generally not associated with eyelash extension adherence but may relate to other factors, such as fluid retention or other allergic reactions not linked directly to eyelash extensions. Dryness of the eyelids may indicate irritation or sensitivity but does not typically signal an allergic reaction, making it less specific than the redness and swelling observed around the eyes.