Where sunscreen goes in your routine

Sunscreen goes on after moisturizer and before makeup. It is the last step of skincare, not the first step of makeup. The common mistake is applying SPF onto a still-wet moisturizer, which dilutes it, produces patchy coverage, and causes the pilling most people blame on the sunscreen itself.

Why sunscreen goes after moisturizer

Sunscreen works as a film across the surface of the skin, and that film needs to be continuous and undisturbed. Anything applied on top of it breaks it up. A moisturizer applied over sunscreen physically redistributes the filter layer and thins it in places, which is a direct reduction in protection.

The occasional argument that chemical sunscreens should go first, to absorb into the skin, does not hold up in practice — the layer still needs to be even, and putting anything over it disrupts it. After moisturizer, before makeup, for every filter type.

Why pilling happens, and how to stop it

Pilling — those small rolls of product that appear when you rub — happens when a layer is applied onto one that has not finished settling, or when incompatible textures are stacked. It is almost always an application problem rather than a bad product.

1. Wait a full minute after moisturizer. This single change fixes most pilling. A still-wet layer has nothing for the sunscreen to grip.
2. Press, do not rub. Pat and press the sunscreen in rather than dragging it across the skin.
3. Use less moisturizer, not less sunscreen. If a layer has to be reduced, reduce the one that is not protecting you.
4. Do not stack silicone-heavy products. A silicone primer over a silicone-rich sunscreen is the classic pilling combination.
5. Let the sunscreen set two to three minutes before makeup.

How much, and where people fall short

About a quarter teaspoon for face and neck — the two-finger measure, meaning two strips of product along the length of your index and middle fingers. Most people apply between a quarter and a half of that on their face, largely because they are trying to avoid a visible layer.

Two things follow. First, do not forget the neck, ears and the backs of the hands — all sun-exposed, all routinely skipped. Second, if the amount required looks like too much on your skin, the answer is a different product rather than less of this one. How much sunscreen to apply.

Vitamin C, retinoids and actives

Vitamin C goes on in the morning under sunscreen. The two work well together — antioxidants address free-radical damage that gets through the filter layer — and there is no conflict in layering them, provided you give the serum a minute.

Retinoids are night products. They increase photosensitivity, which makes daily sunscreen more important rather than less, but they are not part of a morning routine.

Exfoliating acids are best at night for the same reason. If you use them in the morning, sunscreen is not optional.

Reapplying over a finished face

The practical problem with daily facial SPF: reapplying at midday means either ruining your makeup or not reapplying. Three workable answers:

• A loose mineral powder, brushed over the whole face in overlapping passes. The cleanest option, and the reason the format exists. Powder versus lotion.
• A cushion compact SPF, pressed rather than swept, which rebuilds the layer without dragging.
• A stick around the eye area and hairline, which are the spots most likely to have degraded and the easiest to target without disturbing anything.

What does not work is a facial mist SPF used as a full reapplication. The dose is far too small to count as anything but a refresh.

A realistic standard

If you are indoors most of the day, a full morning application plus one midday powder top-up is a reasonable routine. If you are outdoors, reapply properly with a lotion every two hours, and accept the makeup consequences — or wear a hat and reduce the problem at source.