Morning protects. Evening repairs. Once you hold onto that, most of the confusion about what goes where answers itself — and you stop buying products that duplicate something you already own.

Why the two differ
During the day your skin is defending itself against UV, pollution and temperature swings. At night it is doing the opposite work: cell turnover peaks, repair processes run, and water loss through the skin is at its highest.
So ingredients that shield belong in the morning, and ingredients that rebuild — along with anything that makes skin sun-sensitive — belong at night.

Morning
- Water or a gentle cleanser. If your evening routine was thorough, water alone is often enough — especially on dry or sensitive skin.
- Antioxidant serum — vitamin C, or niacinamide if C does not suit you.
- Moisturiser, matched to the season rather than to your skin type alone.
- Sunscreen. Always last, always in a proper amount.
That is the whole morning. Four steps, and only one of them is negotiable.
Evening

- Remove sunscreen and makeup first — an oil or balm cleanser, then a gentle second cleanse. This is the one place double cleansing genuinely earns its place.
- Your active: a retinoid, or an acid, on alternating nights. Never both on the same night.
- Hydrating serum if you use one — hyaluronic acid or similar, on damp skin.
- Moisturiser, richer than the morning one.
What belongs only at night
- Retinoids — sunlight degrades them and they increase sun sensitivity.
- AHA and BHA, for the same reason.
- Rich occlusive creams and oils, which sit badly under sunscreen and makeup.
- Prescription treatments, unless your doctor said otherwise.

The two mistakes
The first is doing more in the evening than you can sustain. A six-step night routine performed three times a week beats a ten-step routine abandoned after a fortnight, and skin responds to consistency far more than to complexity.
The second is skipping the morning because nothing visible happens there. Nothing visible is the point — the morning routine prevents damage you will otherwise spend the next decade trying to correct at night.
