Propolis is the resinous material that bees use to seal their hives. In skincare, it becomes an extract that you often find in moisturizing serums and toners. Sensitive skin does not generally rule out propolis. However, if you are known to have a propolis allergy, you should avoid corresponding products: even a natural ingredient can trigger a contact allergy.

The COSRX Full Fit Propolis Light Ampoule combines propolis extract with glycerin, betaine and panthenol. Its light texture is an option if you want an extra step of hydration before your cream. After cleansing and using your toner, gently distribute a small amount over your face. If your skin reacts quickly to new things, insert the ampoule one at a time. This makes it easier to see how you get along with it.