Using a clarifying shampoo before bleaching can be beneficial in certain situations. Clarifying shampoos are designed to remove product buildup, excess oils, and impurities from the hair and scalp. By using a clarifying shampoo before bleaching, you can ensure that your hair is free from any residue that may interfere with the bleaching process.

However, it is important to note that clarifying shampoos can be quite stripping and can potentially dry out your hair. Bleaching itself is already a harsh chemical process that can cause damage to the hair. Therefore, it is crucial to assess the condition of your hair before deciding to use a clarifying shampoo.

If your hair is already dry, damaged, or chemically treated, using a clarifying shampoo before bleaching may further compromise its health. In such cases, it is advisable to consult with a professional hairstylist who can assess your hair's condition and recommend the best course of action.

Ultimately, the decision to use a clarifying shampoo before bleaching depends on the specific needs and condition of your hair. It is always a good idea to seek professional advice to ensure the best possible outcome and minimize potential damage.