What type of products should be avoided on chemically treated hair?

Sulfate-based shampoos should be avoided on chemically treated hair because they contain harsh cleansing agents that can strip away natural oils and the chemical treatment itself, leading to dryness and damage. Chemically treated hair, whether it has been colored, permed, or relaxed, often requires extra care to maintain its moisture and integrity. Sulfates can create a lather that feels satisfying but can also remove essential moisture, resulting in hair that is brittle and prone to breakage.

In contrast, hydrating conditioners, natural oils, and leave-in conditioners are generally beneficial for chemically treated hair. They provide moisture, nourishment, and protection, which are essential for maintaining healthy and manageable hair post-chemically processing.