The application is incredibly smooth. As the name suggests, it contains 78% serum ingredients, giving it a very refreshing texture that protects against UV rays and dryness. In terms of functionality, it's not only water-resistant, but also resistant to sebum and sweat, making it smudge-resistant! If your base makeup smudges badly, it's hard to fix, so this is a big help. Also, with SPF50+ and PA++++, it's perfect for UV protection! It's light and comfortable, so I didn't feel any strain on my skin at all! From the new summer collection! This is really great!