How is a patch test performed?

A patch test is performed by applying a small amount of a product to a discreet area of the skin, which allows practitioners to observe and monitor for any adverse reactions, such as redness, irritation, or an allergic response. This method is essential in skin care and esthetics because it helps ensure the safety of products before they are used more extensively on a client's skin.

Using a small, controlled amount minimizes potential discomfort and helps identify sensitivity to the specific ingredients in the product being tested. This precautionary approach is particularly important for clients who may have sensitive skin or allergies.

The focus of a patch test is on ensuring the well-being of the client and preventing adverse effects, making it a crucial step in the process of product application in esthetics. Other methods listed, such as applying a large amount directly to the face or testing on a friend's skin, do not provide the same level of safety and specificity.