Price tells you about packaging, marketing and margin. It tells you very little about whether something will work on your face. There are places where paying more is justified and places where it is simply a transfer of money, and the line between them is not where most people assume.

Where cheap is genuinely fine
- Cleanser. It is on your face for thirty seconds and then goes down the drain. A well-formulated inexpensive one does the whole job.
- Moisturiser. Glycerin, ceramides and squalane cost very little. A good pharmacy cream is not a compromise.
- Niacinamide, salicylic acid, basic AHAs. Cheap, stable, well understood. You are paying for a known molecule at a known concentration.
- Body products. Almost always.

Where paying more can be justified
- Vitamin C. Stability is genuinely hard and genuinely expensive. A cheap L-ascorbic serum in a clear bottle is usually money lost.
- Sunscreen — but only for texture. Protection is set by the filters, not the price. What money buys is a formula you will actually apply daily, and a sunscreen you enjoy wearing beats a better one you avoid.
- Retinoids, where encapsulation and packaging make a real difference to tolerance.
- Anything you need to tolerate daily when you are sensitive — short ingredient lists cost more to formulate.
What the extra money usually buys

Weight in the bottle. A nicer pump. A scent. A shop you enjoy walking into, and a face on a billboard. None of these are frauds — people pay for pleasure in plenty of categories — but they are not performance, and it is worth knowing which one you are buying.
The clearest way to check: turn the box around. If the actives sit below the preservatives in the list, you are holding an expensive moisturiser with a famous name on it.
Where the money actually goes furthest

- Sunscreen you will wear every day. Nothing else on any shelf competes with this for value.
- One active, used consistently for six months. Cheaper and more effective than four actives used for six weeks each.
- Finding out what your skin is before buying anything, rather than after four wrong purchases.
Most people I speak to have spent more on products that did not suit them than a sensible full routine would have cost outright. The expensive part is rarely any single bottle — it is the sequence of reasonable-looking guesses.
