Trends and routines

Skin cycling

Also written as cycling routine, retinol night.

Rotating actives across a four-night cycle so exfoliation and retinoids never land on the same evening.

What it needs from a bottle

A routine defined by nights sells as a set. Number the bottles or colour-code the collars, because the whole proposition is that the customer knows which one is tonight without reading the back label in a dark bathroom.

Formats that suit it

• Matched bottle sets
• Colour-coded closures