Esteel Lauder's Night Repair Serum powered by Chronolux™ Power Signal Technology and Estee Lauder's exclusive peptide, this serum is highly effective and fast-penetrating, boosts 7 key skin anti-aging action. The skin barriers are strengthened and heavily hydrated within 4 hours post-application thanks to hyaluronic acid. After three weeks of usage, the lines and wrinkle are reduced, 88% of users reported to appear more youthful (1). (1) Consumer testing on 543 women.