When using a chemical relaxer, which of the following must you avoid using?

When using a chemical relaxer, it is essential to avoid using bleaches or high lift color products because these agents contain strong chemicals that can further damage the hair, especially after a relaxer has been applied. A chemical relaxer works by altering the hair's structure to make it straighter, and using a bleaching agent or high lift color can introduce additional stress to the hair shaft. This can lead to excessive dryness, breakage, or even hair loss as both processes significantly weaken the hair.

In contrast, conditioners, permanent color, and shampoos can be used with caution. Conditioners can help to maintain moisture and protect the hair after the chemical process. Permanent color can be compatible under the right conditions, especially if it's applied after the relaxation process, and mild shampoos are often necessary for cleansing without stripping the hair of oils. Those options, when used appropriately, can be beneficial rather than harmful.