This is the first snail mucin product that I tried and absolutely loved, other cult favourites really didn't work for me. It hydrates the way I wished all of my hyaluronic acid toners hydrated, soothes the way I imagined all of the aloe gels I purchased would and heals my skin rapidly after any kind of trauma - pimples, dryness. With this product I finally got the meaning of "chok-chok" and "chewy skin" - hydrated, bouncy and full of life, and achieved hydration without new break-outs and pimples on my sensitive and acne-prone skin. I use quite a lot of it because I like it to soak in, sometimes 2, sometimes 4 pumps. Layering with it is great because it sinks in quickly and let's you go on to your next step. I use it in this order: cleanse > vitamin c serum > hydrating toner > COSRX Advanced Snail Mucin Power Essence > Moisturizer > Sunscreen. Will repurchase a third time.