Choosing a foundation shade online can feel like guesswork. It does not have to be. Once you understand two simple ideas, depth and undertone, the whole thing gets a lot clearer.
Step one: find your depth
Depth is just how light or deep your skin is, on a scale from fair to deep. This is the easy part, and it is usually the first thing people get right.
A useful tip: your face and your neck are often slightly different, especially if your face gets more sun. The goal is a shade that disappears where your face meets your neck, so match to the point where the two meet rather than to your face alone.
Step two: find your undertone
Undertone is the subtle colour underneath your skin, and it does not change with a tan. This is the part that most often goes wrong, and it is why a foundation can look right in depth but still feel slightly off.
There are three common undertones:
- Warm: golden, peachy, or yellow hints.
- Cool: pink, red, or bluish hints.
- Neutral: a balance of both, with no strong lean either way.
Two quick ways to check at home:
The vein test. Look at the veins on the inside of your wrist in natural light. Greenish veins usually suggest a warm undertone. Bluish or purple veins usually suggest cool. If you cannot tell, you are likely neutral.
The jewellery test. Think about which metal suits you more. If gold flatters you, you likely lean warm. If silver looks better, you likely lean cool. If both work, neutral.
Neither test is perfect, but together they give a good indication.
Step three: test it properly
However you shop, test the shade the same way:
- Apply a small amount along the jawline, where the face meets the neck.
- Check it in natural daylight, not bathroom or store lighting, which distorts colour badly.
- Let it sit for a few minutes. Mineral powder settles into the skin, and the true match becomes clearer after a moment.
The right shade will look like it belongs. If you can see a line, it is not the one.
A note on mineral powder
Loose mineral foundation is a little more forgiving than liquid. Because it is buildable and sheer to start, a slightly imperfect match blends more easily than it would with a full-coverage liquid. Our Mineral Foundation comes in a wide range of shades designed to cover a broad spectrum of depths and undertones, so there is room to find your fit.
If you are between two shades, many people go slightly lighter and build, or blend the two together. With loose powder, mixing shades is easy and completely normal.
The takeaway
Depth plus undertone, tested at the jawline in daylight. That is really all there is to it. Take your time, trust natural light, and remember that with buildable mineral powder, you have more room for error than you think.
