What component makes up the structure of hair aside from proteins?

The structure of hair is primarily composed of proteins, specifically keratin, which is a fibrous protein providing strength and resilience. However, water is also an essential component of hair's structure. It plays a crucial role in the hydration and elasticity of the hair. Water contributes to the overall moisture content of hair, influencing its texture and flexibility. Proper hydration is vital for maintaining the health and appearance of hair.

While other components like lipids (which contribute to shine and protect hair), glucose (not a structural component of hair), and collagen (which is a protein found in skin and not in hair structure) are relevant in the context of hair and scalp health, water stands out as a direct contributor to the structure and physical properties of the hair strand. Maintaining a balance of water in hair ensures optimal condition and performance, making it a key component alongside proteins.