A patch test or skin allergy test is helpful in determining whether a new skin care product works well with your skin or not. It’s a simple test that helps you check for a skin allergy. You can do a simple and effective patch test at home.
Patch tests can be done for any new skin care product you’d like to use. Creams, lotions, facial products, hair dyes, oils and serums, shampoos and conditioners, moisturizers, toners and eye cream can all be tested for skin allergy. An allergic reaction commonly occurs with products having synthetic dyes and fragrances, parabens, preservatives, sulfates and high concentrations of acids. In addition, cosmetics with herbal ingredients or essential oils may also cause allergy in susceptible individuals. In comparison to synthetic ingredients though, the incidence could be much less.
This simple, at-home patch test should not be confused with patch tests that are done at laboratories. Patch tests done at laboratories or skin clinics are scientific methods of investigation. In a laboratory patch test, various patches which contain different allergens are applied onto the skin on the back or arm for 48 hours or more. A physician is present or consulted with to see if you are allergic to any potential allergens. Those undergoing a laboratory patch test are under constant supervision.
People who have very sensitive skin or a past history of allergic skin reaction should do this patch test before trying any new skin care product or before switching from one brand to other. With a patch test, you may avoid an allergic reaction. A patch test is in no way painful so do not be afraid to perform this test at home.
An irritant reaction on other hand is an instant reaction which occurs in some people. This might be mild itching, mild redness or a mild stinging sensation after the use of a new product for the first time. An irritant reaction is very mild and goes away within ten minutes. This reaction does not occur when the product is used again. Irritant reactions do not involve the immune system like an allergic reaction does. It can however exacerbate skin conditions like eczema.
If a product contains glycolic acid, lactic acid or salicylic acid, then there are chances of mild redness but it should subside within 10-15 minutes. A moisturizer can be used to lessen the redness. Do not confuse mild redness with an allergic reaction. Still if there is irritation, discontinue use and consult your health care provider.
People with oily skin and acne-prone skin can experience breakouts with products like coconut oil, coconut butter, cocoa butter and isopropyl palmitate. If you are performing a patch test to see if a product will make you break out, then follow these steps. A break out means clogged pores or blemishes which usually can not be seen after only one use. Here’s what you can do.