New year and new skincare! How many products have you emptied since the new year started? I usually finish products before going into the new year, but this year was a little different since I left my routine for almost half a month.
I really didn’t think that leaving my routine behind when I went on vacation last summer made that big of a difference but oh well. The first empty skincare of the year is the popular Anua Niacinamide 10% + TXA 4% Serum!

I think this would also be the fastest product that I’ve finished, though I can’t be certain. I got this product to review before I left for vacation in August, so based on calculations it took me about 5 months to use up the 30mL bottle.
I liked the serum enough and saw good results of it fading away dark spots and hyperpigmentation from pimples, so I’m probably going to repurchase this in the future.