I LOVE the gentle-but-powerful Obagi Medical product line and originally bought and used their skin lightening kit zealously! This bottle was recently purchased through my dermatologist’s office as part of that kit. But one day out of the blue I developed chemical and fragrance sensitivities and my doctor changed me to a different formula. So this new and unopened bottle (still sealed in its protective wrapping) is up for grabs!  It’s a superb, light glycolic- and lactic-acid exfoliating lotion that can be used as the exfoliation step of the lightening kit or by itself. *** This is a nice find (a medical-grade product) and also a nice value … an approximate 40% savings compared to online and dermatology office prices!  I’ve included a photo taken from the Obagi website as an example; they charge $88! 🧼 THANK YOU for your interest in my item and for placing trust in me.  I hope we can help each other!   :)