What is a potential consequence of using an unbalanced shampoo?

Using an unbalanced shampoo can lead to a variety of issues for the hair, and one significant consequence is that it may make the hair brittle. Unbalanced shampoos are those that do not have the appropriate pH level or formulation to match the specific needs of your hair type. When the hair is exposed to inappropriate cleaning agents or high alkalinity, it can strip essential oils and moisture from the hair shaft, leading to dryness and increased brittleness. This brittleness manifests as a lack of elasticity, making the hair more prone to breakage and split ends.

In contrast, a balanced shampoo is formulated to maintain optimal moisture levels and pH, which help in nourishing the hair and keeping it healthy. The other options provided, such as adding moisture, enhancing shine, and promoting scalp health, typically require a well-balanced formulation that caters specifically to hair needs, which unbalanced shampoos fail to provide. Therefore, the potential consequence of hair brittleness is directly tied to the use of an unbalanced shampoo.