Antiallergic agents (AAA) are agents that are used to treat diseases that cause allergic reactions and the complications caused by such reactions. Many of these agents act either by blocking the release of these mediators or by potentiating the released activities on their target cells.

An allergic reaction can be caused by plant sap, pollen, dust, mold, animal dander, food, drugs, cosmetics, insect venom, and other things found in our environment, including cold air. Allergies are believed to involve both environmental and hereditary factors.

Some ingredients in cosmetic products cause allergic reactions in some people, including those with sensitive skin. These include fragrances, preservatives, metal compounds, lanolin, dyes, and more.

To formulate hypoallergenic (anti-allergy) products, the following points should be considered:

Choosing a mild and non-irritating composition, prevention from common allergens, skin-friendly pH and using moisturizing ingredients