COSRX
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COSRX - elocinism review for Real Fit Retinol Serum
Face Skincare
Serums
4.3
(38)
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2 Comments
elocinism
Oily/Resilient
I introduced it by using every other night, then when I saw no reactions, I use it every night! If you have more sensitive skin though, it is advisable to use it once a week first.
eve1008
Oily/Resilient
How often do you use this? Thanks


