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? :
Hyséac K18 Crema Risanante Uriage - iafstore.com
Uriage Hyseac Sérum Peau Neuve 40ML
URIAGE Hyseac K18 40ML | Europa Farma
Uriage hyseac k18 Soin Kératorégulateur 40ml - CITYMALL | Parapharmacie en ligne au Maroc