Skin irritation is one of the most significant concerns when it comes to cosmetic products. With the skin being constantly exposed to a variety of external and internal stressors, ensuring that cosmetic products are safe and non-irritating is crucial. Skin irritation occurs when a product causes a negative reaction on the skin, typically resulting in redness, swelling, itching, or burning sensations. These reactions can be caused by various factors, including harsh chemicals, fragrances, preservatives, or other ingredients in cosmetic formulations. For cosmetic products, skin irritation can result in adverse reactions for consumers, especially those with sensitive skin.