I've tempted for a long time to buy this for my mom since it's been an ongoing product for quite a long time in Korea (which is always a good sign imo). Also it's known as a famous Estee Lauder dupe and who doesn't like paying less for equally great quality?? Plus the packaging is honestly a lot nicer too. My mom loves this ampoule and it's been helping to add an extra boost to her routine. Great for moisturizing and adding some extra radiance to her skin. Definitely a rebuy in her books.