Essences, Serums and Ampoules are lightweight skincare that contain a higher concentration of active ingredients than typical facial moisturizers. Known for their effectiveness, these skincare are often used to manage specific skin concerns, such as dark spots or uneven skin tones, excessive oiliness, redness, dehydration, acne breakoutsdull skin, fine lines and wrinkles, dryness, or skin irritation. They are typically thinner than moisturizers, which makes them perfect for layering. They mostly have a water-like consistency but can come in different formulas, including gels, oils, and light creams.