Tennessee Cosmetology Practice Exam

After receiving a relaxer, how long should one wait to perform a chemical service?

1. One week

2. At least two weeks

3. Three days

4. One month

The correct answer is: At least two weeks

Waiting at least two weeks after receiving a relaxer before performing any additional chemical service is recommended due to the effects relaxers have on the hair's structure and integrity. Relaxers significantly alter the hair's pH and can weaken its bonds, making it more susceptible to damage. This waiting period allows the hair to recover and regain some of its strength, thus minimizing the risk of over-processing and potential damage during subsequent chemical treatments such as coloring, perming, or any other relaxing procedures. Performing a chemical service too soon, such as within a week or three days, can increase the likelihood of hair breakage, scalp discomfort, or other negative reactions, as the hair has not had adequate time to stabilize after the initial relaxer application. Waiting for one month is generally excessive for most clients and can hinder timely beauty treatments unless specifically indicated for individual circumstances or conditions. Therefore, a two-week gap is often viewed as a safe and efficient timeframe for maintaining hair health while allowing for further chemical services.