Cosrx Propolis Light Ampoule is a great choice. It is a light, hydrating ampoule. It can improve your skin's health and appearance. Propolis Light Ampoule is a serum. It has 83.25% Black Bee Propolis extract. It's very concentrated. It will make your skin look brighter and healthier. It's a good choice for people with sensitive skin. It has a pH of 5.5 and no chemical dyes or scents.