This is so concentrated that when you apply on your face you can definitely feel that it's working right after. I apply it before I go to bed and when I wake up in the morning and whenever I feel like my face is dried up. And as far as I can see my blemishes are fading and I'm not having a lot of breakouts lately. I also tried to use it on my stretch marks behind my knees and I can see that it's lightening. I don't expect it to work like magic but I can see that my skin is improving. I love the smell of it too! It's not too strong and it's very relaxing. It says you can use it to for your hair but I haven't tried that part but I am curious to try it out. I appreciate companies that gives 100% guarantee with their products because it only means that they're confident that it's going to work. And it did for me and hopefully for you too.I was lucky enough to be able to purchase this for a discounted price in exchange for my objective and equitable review.