I really have mixed feelings about this product. On the one hand, it does what it claims-my freckles have faded and my skin is brighter. On the other hand , it is really very sticky upon application, even if I use a small amount and the smell is a bit weird.
However, I can tolerate the downsides if I see the serum really works. So this is my second bottle already. I only apply it at night, right after cleansing. Do not apply it after your toner, it makes your face more sticky and the serum doesn't sink in. Then I wait for about 10 minutes and follow up with my moisturiser. In this case, stickiness goes away.