Detailed answer

Allergies to skincare products can indeed cause redness and irritation. When someone is allergic to a particular ingredient in a skincare product, their immune system reacts by releasing histamines, which leads to inflammation, redness, and irritation. Common allergens in skincare products include fragrances, preservatives, dyes, and certain ingredients like parabens or sulfates. To avoid these reactions, it is crucial to identify the specific allergen and choose products that are hypoallergenic or free from the triggering substances.