A skincare ritual works in layers, and each layer has a job.
Cleanse comes first because everything after it depends on a clean base. Skip this step or rush it, and the rest of your routine is working on top of the day's buildup instead of your actual skin.
Treat is where the specific work happens. This is the step matched to whatever your skin is dealing with right now, whether that's dryness, dullness, breakouts, or the early signs of ageing. It's also the step most people get wrong, usually by choosing based on packaging or a trend rather than what their skin is asking for.
Moisturise locks in everything the first two steps started. Without it, active ingredients can evaporate before they've had time to do much at all.
Extras are exactly that. Optional. A lip balm, an eye cream, something that adds a little more care without adding pressure.
Four steps. Not eleven. Not a shelf full of half-finished bottles.