My current skincare rotation: Medik8 Crystal Retinal 6 at night and the C-Tetra Advanced Gel-Serum in the morning. The C-Tetra serum brightens and hydrates my skin to start the day. The Crystal Retinal 6 is my nighttime retinal for smoother, more even skin over time. I love how both feel on my skin and the results I have seen. Both are 25% off for Labor Day through September 8. Orders over $60 ship free. Sign up for Medik8's loyalty rewards program to start earning points toward future orders. medik8 skincare retinal vitaminc skincareroutine LTKOver40 LTKSaleAlert LTKBeauty