Barrier-first reset
Use this if your skin has been stinging, peeling, or getting tight by the end of the day. This is also the right place to restart after you overdid acids or jumped into retinoids too fast.
Cadence
One retinoid night every four to five nights. Add exfoliation only after two calm weeks.
If moisturizer burns or your face feels warm after cleansing, stay here a little longer.