Define "trichology."

Trichology is the specialized field that focuses on the study of hair and scalp disorders. This discipline encompasses a comprehensive understanding of the biology of hair growth, conditions affecting the scalp, and various hair-related health issues. Professionals in trichology investigate and address problems such as hair loss, dandruff, and scalp conditions, aiming to diagnose and create treatment plans for individuals experiencing these issues.

The other options, while related to the broader field of cosmetology, do not accurately define trichology. The analysis of hair color trends pertains more to color theory and fashion rather than health. The development of new hair products focuses on the cosmetic and commercial aspects of the industry, and the practice of hair styling techniques involves practical applications of styling rather than the medical or scientific study of hair disorders. Hence, understanding the specific focus of trichology helps in recognizing its importance within the realm of cosmetology and hair care.