A patch test is a way to test whether the new product works for your skin. However, this test is often ignored which may affect acne and allergic reactions for certain people. If there is any acne or breakout, stop using the product immediately.

Testing for allergic or irritation

To do an allergy patch test, simply apply a small amount of the product to a small area of your inside arm, a corner of your forehead, behind your ear or the side of your neck. There should be no other products on the skin so that you can properly test this product. Wait around 48 hours to see if you have a reaction.

Testing for breakouts

In order to see if a product may affect you breakout, you should apply the product directly on a small part of your face, such as the cheek, chin or anywhere else that’s prone to blemishes. Apply the product daily to the same area for a week or so to determine whether your skin will react.