The Differences
In K-beauty, an essence is a lightweight, hydrating product that prepares the skin for subsequent layers. A serum is more concentrated with active ingredients. An ampoule is an intensive, targeted treatment used periodically.
How to Use Them
Apply essence after cleansing and toning, followed by serum, then moisturizer. Use ampoules as a boost when your skin needs extra support. Not every routine needs all three; choose based on your goals.
