The least expensive thing that works

Let us talk about money, which is rarely done in this field.

What costs nothing at all

Water temperature. Lukewarm instead of hot. Free, daily, and it changes a dry face more than most creams do.

Not rubbing. Free. Almost every face weakened by skincare was weakened by rubbing.

Applying on damp skin. Free. It roughly doubles the usefulness of what you already apply.

Not washing in the morning. Free, and it also saves product.

Waiting three weeks before buying for a new sign. Free, and it eliminates most unnecessary purchases.

These five points together are worth more than the difference between an entry-level cream and a luxury cream.

What costs little and is worth it

A simple fatty substance. A decent-quality plant oil costs little and does, for most faces, the same thing as a product ten times more expensive. The difference between the two is mostly texture, fragrance and pleasure — which is not nothing, but which is not effectiveness.

Sun protection. This is the only item where it is worth spending what is needed, because it is the only one whose benefit is indisputable over the long term.

Clay. A few euros a pot, and it lasts for months.

What costs a lot and is rarely worth it

Products bought in urgency for a passing sign. They are almost never finished.

Third and fourth layers, which do what the second one already did.

Devices, in their vast majority.

Intensive one-off courses, which never compensate for underlying irregularity.

The most expensive item of all

It appears on no receipt: it is the exploration budget.

The money spent trying. The pots opened and abandoned. The products that are fine but poorly matched. Over five years, this almost always amounts to more than everything else combined.

And it is not reduced by buying cheaper. It is reduced by trying less — that is, by knowing, before buying, what your face is asking for.

The best value of all

A piece of information, obtained once, that does not expire.

Knowing whether your face needs to be unburdened or nourished, whether it produces or loses. It costs no daily money, it demands no daily time, and it removes the heaviest expense in this field: the expense of trial and error.

It is the only thing in this subject whose return increases with the years. Everything else wears out.