What are the consequences of using the wrong shampoo and conditioner?

Using the wrong shampoo and conditioner can lead to a range of negative effects on your hair and scalp. It may result in dryness, frizz, or excessive oiliness, depending on the formulation. Additionally, it can cause scalp irritation, itching, or allergic reactions, and may exacerbate existing conditions such as dandruff or psoriasis. Over time, using unsuitable products can compromise the overall health and appearance of your hair.