I'm on my second bottle of this product. I don't like the eye dropper as the serum is too thick to be effectively dispensed this way. It has a nice texture, absorbs well and a little goes a long way but I haven't noticed any lightening of pigmentation spots after twelve weeks of daily use. Economical price but uncertain if I'd purchase again. From what I've read about Vit C in skin serums, the 5% in this product may not be enough to be effective.