I have NEVER had ‘good skin’ but I feel like it has improved SO much over the past month since I’ve been using this Medicube PDRN peptide. My skin is so nice and smooth and looks so healthy in the morning when I wake up now instead of dry and flaky and covered in tiny little pimples. I have super sensitive skin but I haven’t had any negative side effects from this serum. LTKBeauty LTKdayinmylife LTKgrwm