Definition of sensitive skin is sensitive skin as a special type of skin characterized by excessive interaction with external factors. People who have sensitive skin feel burning, itching, and redness when exposed to effects such as weather, chemicals, or even some cosmetic products. Factors affect sensitive skin. There are many factors that cause skin allergy, as they include climate change, use of inappropriate products, and psychological tension. Sensitive skin have to take preventive steps, such as choosing products free of perfumes and harsh chemicals, and a simple care routine to maintain their skin's health and spare them to worsen the problem.