According to the publication, the actress began using Laneige's products when she was in college, particularly the Laneige Lip Sleeping Mask.
After using the mask, she tried other products in the line and "started incorporating" them into her skin care "little by little," she told Harpers Bazaar.
Laneige announced on its Instagram page that Sweeney would be the brand's partner.
The post read, "When two glow-getters team up, magic happens. We are SO excited to introduce Sydney Sweeney as the face of our newly revamped Water Bank Collection! A radiant personality (with skin to match!) brings you our biggest hydration innovation yet, the new & improved Water Bank Blue Hyaluronic Collection."