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 Hyseac K18 Tube 40ml | Santis Market
Uriage Hyseac K18 Emulsion 40ML: Buy Online at Best Price in Egypt - Souq is now Amazon.eg
Uriage Hyseac K18 Fluid, 40 ml: Buy Online at Best Price in Egypt - Souq is now Amazon.eg
Uriage K18 - Does it work? — Beautypeadia
URIAGE HYSEAC K18 KREM ODBLOKOWUJĄCY PORY, 40 ml - Pomocna24