A good routine is short enough to do every day. Here are the four steps that matter most.

1. Cleanse

Wash with a gentle cleanser morning and night. Skin should feel clean and comfortable, never tight.

2. Treat

A serum is where you add what your skin wants: hydration, brightness or a smoother look. Use thinner serums first.

3. Moisturise

A moisturiser keeps the water in. Choose a gel for humid days and a cream when the air is dry.

4. Protect

Sunscreen is the last step every morning, even indoors near a window. Use about two finger-lengths for face and neck.