This stuff is great! A lot of people might be intimidated by the price, but it's definitely worth the splurge. I heard this was a dupe for the SK2 so, I decided to try it out. I bought my first bottle at the beginning of the year and used it both morning and night right after washing my face. My skin tone and texture looked and felt much better, and I definitely realized how radiant it made my skin look. I have oily, sensitive, and acne-prone skin and this didn't break me out at all. Unlike some reviews I read on here, this isn't just for mature skin. I'm 22 and I'm using this product. Everyone's skin reacts differently to different products. For the most gentle application, use your hands/fingers. I like to use a cotton pad, because it helps substitute for toning and getting the dirt off my face. I didn't use this product for a month or two after my first bottle and I really noticed the difference. Also, at first, I was worried that my skin looked too oily, because it made my skin so radiant. So, I switched to using it only at night, so that the radiance and my natural oils didn't make my face oily throughout the day. And, it also made the product last longer! I'm finishing my second bottle and already have a third ready. This stuff is my holy grail skin care!