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123porcristina
0
Oct 23, 2017
is this serum really works? any opinion? thx
YuXuan
18
May 7, 2018
123porcristinaI have the collagen and hyaluronic serums, but have mainly been using the hyaluronic. In my opinion, they both work, although I obviously have more experience with the hyaluronic, which IMO has a measurable effect on my skin, although YMMV.