Cosmetic components causing contact urticaria: a review and update

Area of Science:

• Dermatology
• Cosmetic Science
• Allergology

Background:

• Immediate skin reactions, such as contact urticaria, are frequently encountered in dermatology.
• These reactions to cosmetic ingredients are often underdiagnosed or overlooked.
• Contact urticaria syndrome presents with diverse clinical manifestations.

Purpose of the Study:

• To update the literature on immediate-type reactions caused by cosmetic ingredients.
• To review clinical symptoms, diagnostic testing (prick, scratch, open testing), and IgE detection.
• To identify specific cosmetic ingredients associated with contact urticaria.

Main Methods:

• A selective literature search was performed across multiple medical databases.
• The search focused on immediate reactions, contact urticaria, and cosmetic ingredients.
• Case reports and studies investigating diagnostic methods were reviewed.

Main Results:

• Numerous cosmetic ingredients were identified as triggers for immediate reactions.
• Common culprits include hair dyes, preservatives, fragrances, sunscreens, and tattoo inks.
• Diagnostic methods like prick testing showed positive reactions, though many studies lacked controls.

Conclusions:

• Contact urticaria from cosmetics is a significant clinical issue.
• A wide array of cosmetic components can induce immediate hypersensitivity.
• Further rigorous investigation and controlled studies are necessary to better understand these reactions.