If you have sensitive skin or think you are hypersensitive to certain substances, it is important to use cosmetics, cleansers, and cleansers that contain as few allergens as possible.
In either case, you can contact your doctor or general practitioner to find out what substance you are allergic to. Usually you will be allergic to a certain substance for the rest of your life.
In general, it is best to use mild (or hypoallergenic) products.
Fragrances and dyes in cosmetics, detergents and care products
Why are there ingredients in cosmetics, cleaning agents and care products that can cause allergic reactions? These are substances that have to ensure that the products look good (dyes), smell good (fragrances), last longer (preservatives) or substances that improve their effectiveness (a substance in a detergent that ensures, for example, that your laundry extra is clean).