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patch test - The importance of a patch test and strand test...

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The importance of a patch test and strand test is to identify an allergy orsensitivities to the mixtures. A patch test is called a predisposition test toidentify a possible allergy in a client. A strand test is a test to determine how theclient’s hair will react to the color product and how long the formula should beleft on the hair.In salon the cosmologist needs to determine if the client can have allergyreaction to the product. It is imperative that this step is not missed becausethe client can have mild to severe reaction. The US Food, Drug andCosmetic Act requires that a patch test be implement within 24 to 48 hoursprior to each application of aniline hair color. Typically, the patch needs tobe the same color that will be used on the hair. If the client has a negative
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Term
Fall
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Science, Allergy, patch test

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