A hair cleanser, commonly known as shampoo, is a vital hair care product. It's formulated to remove dirt, oil, and impurities from the hair and scalp. Shampoos are available in various types to address specific needs. Moisturizing shampoos hydrate dry or damaged hair, while clarifying shampoos deep-clean to remove product buildup. Volumizing shampoos add body to limp hair, and color-protecting formulas maintain dyed hair's vibrancy. Anti-dandruff shampoos combat flakes, while sulfate-free and natural shampoos offer gentler options. Proper use and rinsing are crucial for optimal results, and following with a conditioner helps maintain hair health, leaving it clean and manageable.