I found a Reddit post stating that Uriage Hyseac-k18 contains 18% glycolic acid but I can't find a source outside of Reddit. Can someone confirm that or point me where to look? :
URIAGE - Hyséac k18 40ml - Face Cream For Oily Skin
Uriage K18 - Does it work? — Beautypeadia
Uriage Hyséac K18 ingredients (Explained)
URIAGE Hyseac K18 40ML : Amazon.fr: Beauté et Parfum
Uriage Crème Hyseac K18 Soin Desincrustant - Jamaly Store