I have a three-step evening cleanse that I have not changed in about four years. It takes maybe five minutes, including the small pauses between steps. It uses three products, none of them expensive, and it does the work that most ten-step routines are pretending to do. If anything I have learned in this field is worth sharing, this is high on the list.

Step one is an oil cleanser. Step two is a gentle gel or cream cleanser, used as a second wash. Step three is a hydrating toner or essence applied to damp skin. Then a moisturiser if you use one. That is the entire evening.

Why the oil goes first

Anything on the face that is oil-based — sunscreen, makeup, the day's accumulation of sebum, environmental pollutants that have bonded with the skin's oil film — does not come off with a water-based cleanser. It comes off with oil. The oil cleanser dissolves the oil-based gunk and lifts it from the skin. When you then rinse, the gunk leaves with the water.

If you skip this step and go straight to a water-based cleanser, the cleanser foams up over an oily surface and most of it slides off without doing useful work. The skin ends up cleaner than it was, but not actually clean. Repeat this nightly for ten years and the difference shows up in the texture of the skin in slow but real ways.

Why the second cleanse

After the oil cleanse, the face has a thin film of oil left behind. The gentle second cleanse — a low-foaming gel or a soft cream cleanser — takes off the oil residue and any water-soluble grime that the oil missed. The skin after a double cleanse is genuinely clean in a way that one cleanse, of either type, does not produce.

The second cleanser should be gentle. This is the most common mistake. People use a strong foaming cleanser as the second wash, which strips the skin and leaves it tight. Strip the skin nightly for a year and you will create the very oiliness the strip was supposedly addressing.

Why the toner on damp skin

After the second cleanse, the face has about thirty seconds of being optimally receptive to whatever goes on next. The skin is slightly damp, slightly warm from the rinse, and the surface is at its most permeable. A simple hydrating toner or essence applied to that surface is absorbed in a way it never would be if you waited.

I use a plain hyaluronic toner — there are dozens of acceptable ones, none of them expensive — and apply it with my palms, pressing rather than rubbing. Then a small amount of moisturiser, also pressed in. The whole closing sequence takes about ninety seconds.

What you do not need

Most of the things being sold to you. Brightening serums every night. Active acids every night. Vitamin-C in the evening. Retinol when you are not actually ready for it. None of these are inherently bad — some are useful — but they are not the routine. They are additions that get layered onto a routine that already works.

Get the three-step cleanse working first, every evening, for three months. The skin will tell you what else, if anything, it actually wants.

Two cleanses and a damp-skin hydrate beats ten steps used carelessly. Get the basics right and most of the additions become unnecessary.