There’s a rule that gets repeated constantly in skincare without much explanation attached: thinnest to thickest. It’s good advice. It’s also worth understanding the reason, because once you do you can work out the order for any product you own, including the ones that came with no instructions.
The reason is physical, not mystical
A thin, water-based product can move through a richer layer sitting on top of it. A rich, occlusive layer can’t be moved through by something watery applied afterwards. It just sits there on the surface, doing very little.
So the order has nothing to do with which product cost more. It’s about not putting a wall in front of the things that need to reach skin.
Cleanse. Then anything water-light. Then anything with more body to it. Then the heaviest thing last, since part of its job is to stay near the surface and slow the rate at which water leaves.
What that looks like with seven products
Night Dunes launched as a curated collection rather than a numbered routine, because a few slots (toner, a morning serum, sunscreen) aren’t filled yet, and we’d rather leave the gap visible than paper over it. Within what does exist, the sequence is simple enough.
At night. Makeup comes off first if you wear it, with the Makeup Remover Solution. Then the Soothing Emulsion, which is light and absorbs in seconds. Then the Firm Serum, across the face and the eye area. Then the Extreme Moisture Blend last, because it’s the richest thing in the collection and it belongs on top.
In the morning. Soothing Emulsion, then the Oil Control Hydrator, which is lighter than the night moisturizer and finishes without shine.
Once a week. The Mint Exfoliating Facial Polish on damp skin, standing in for one evening’s first step.
Something specific about evenings
Skin’s barrier function follows a daily rhythm. A study measuring transepidermal water loss every two hours across a full day found it peaks in the evening and bottoms out in the morning, meaning skin both loses water faster at night and is more permeable then.
It’s a modest effect measured in a small group, and it isn’t a reason to buy anything. But it’s a decent argument for putting your richest layer on before bed rather than before work, which is what most people do by instinct anyway.
The part that actually matters
Consistency beats sequence, comfortably. A plain routine you do every night will outperform an elaborate one you manage twice a week. If you take one thing from this: light things first, rich thing last, and don’t skip nights.
Read next: Rice ferment and perilla, on what’s in that emulsion layer.
Night Dunes products are cosmetics, formulated to condition and hydrate skin and improve how it looks and feels. Nothing here is medical advice and no product is intended to diagnose or treat any condition.
