Study of Prevalence & Vigilance of Adverse Cutaneous Reactions in Hairdye Users: Cosmetovigilance

Introduction: Cosmetics are mostly dispersed compounds that are used topically to wash, scent, or improve one's appearance. Although the majority of adverse reactions to cosmetics are minor and typically involve skin changes, the number of documented adverse reactions is extremely low, probably owing to underreporting. The regulations for cosmetic products primarily address the safety of products that may be used by large populations of healthy consumers.

Methods: To achieve the study's goal, we interviewed 500 volunteers and collected questionnaires about hair dye use, the prevalence and characteristics of adverse cutaneous reactions, and reporting of subsequent measures taken by the volunteers.

Results: The response rate came in around 78 percent. A total of 360 people presented a history that was consistent with hair dye dermatitis. Edematous skin reactions are seen in 65% of cases, allergic dermatitis in 49% of cases, and both types of reactions are seen in 30% of instances.

Discussion: Despite the fact that our experience with reporting adverse effects of cosmetics is limited to a small geographic area, it implies that an effective and trustworthy monitoring mechanism should be in place.