For fine lines / wrinkles / dark circles around the eyes, add Eye Repair Serum after serums in AM+PM. For dehydrated skin due to dry climate / air travel, add Soothing B3 Serum after mist/tonic post-travel and Micronutrient+Hydro Mask after cleansing in PM. For dull / tired skin, add Probiotic+Exfoliation Mask after cleansing in PM. For Melasma or Hyperpigmentation, substitute Lightening Serum for VitaminC+E+Ferulic Serum in PM. For dermatitis, substitute Barrier Lipid Complex for Protective Day Oil in AM+PM. For mild acne, spot treat with Treatment Serum AM+PM and substitute Treatment Oil for Protective Day Oil in AM+PM. For cystic acne prone areas, add Intensive Repair Serum 2-3x/week and spot treat with Treatment Serum after Balancing HypoTonic in PM.