COSRX Snail Mucin 96% Repairing Serum is the clearer winner overall, with a higher total score (91), stronger effectiveness (92), better skin compatibility (82), higher safety (81), and outstanding customer satisfaction (97) across an enormous review base. Its biggest drawback is the polarizing “snail” texture and the fact that some users still experience irritation.
COSRX AHA/BHA Treatment Toner remains a good option if you specifically want exfoliation to support smoother-looking texture and pores, and many users find it effective and good value. Its main limitation is mixed dryness and sensitivity feedback (skin compatibility 71), so it’s best approached with careful frequency and routine balance.