Kiehl’s Fast Release Wrinkle-Reducing Night Serum

€74, Kiehl’s counters and stores

Kiehl’s only entered the retinol market a year ago with a daily cream that could be tolerated by most skin types. This new serum is a night product that contains 0.3% pure retinol and promises really fast results, reducing even deep wrinkles in as little as two weeks, according to the brand. Interestingly, the lightweight serum base and retinol powder are kept separate inside the container; when you use it, a quick twist of the cap breaks the lock between them. Follow with a moisturiser.