The MEDITHERAPY Retinal Skin Booster Serum is an absolute gem—packed with 100ppm of gentle retinal (yes, the upgraded cousin of retinol) in a huge 5oz bottle. It’s perfect for beginners and sensitive skin, but powerful enough to smooth fine lines and even out tone like a pro. Most retinal serums this size would cost triple—so stock up now and let’s pretend we never had this conversation. XO, Donna