I recently got to try these @cosrx serums and I am more than pleasant with the results. I received these products for free from @influenster and @cosrx The serums are beautiful and I have seen a visible difference in my skin texture and brightness in a week only. I continue to use it and my skin is loving all the TLC. I am especially a fan of the Vitamin C serum and the results it had on my skin. #complimentary #cosrxdermserum @Influenster @cosrx