Which factor can contribute significantly to the longevity of a hairstyle?

The longevity of a hairstyle is heavily influenced by the hair's natural texture. Different hair types—such as straight, wavy, curly, or coily—react differently to styling techniques and products. For example, curly hair often holds styles longer due to its natural shape and volume, while fine straight hair might require more product or styling techniques to maintain a similar style.

Understanding the client's hair texture allows the stylist to select the most appropriate techniques and products that can enhance the style, maximizing its durability. A hairstyle that is in harmony with the client’s natural texture is more likely to withstand the effects of humidity, movement, and time.

The other factors listed, such as the use of inexpensive products, the client's mood, and the color of the hair, do not have as direct an impact on the style's longevity as the hair's inherent texture. Inexpensive products might not provide the same hold or nourishment as higher-quality options, while a client's mood may affect the styling process rather than the durability of the hairstyle itself. Hair color, although aesthetically important, does not intrinsically influence how long a style will last based on texture and product interaction.