The intensity slider: what lighter and darker tell me

What eyebrow try on intensity changes on screen

I'm Jisun, the owner of London Brow in Seoul. In my brow preview, every style has an intensity slider with Lighter at one end and Darker at the other. Eyebrow try on intensity changes how strongly the virtual brow shows on your photo. The line, the arch and the tail stay where they are. Only the weight of the brow on the face changes.

That makes the slider a clean test. With shape fixed, you can ask a single question: how visible do I want my brows to be? Many people have never separated that question from the shape question. They say 'I want natural' and mean light, or they say 'I want defined' and mean darker, and the slider lets you find out which one you meant.

Find your stop point in three moves

Here is a method I suggest. First, slide all the way to Lighter and look at your face for a few seconds. Then slide all the way to Darker and do the same. Now move slowly back from Darker until the brow stops being the first thing you see on your face. Where you stop is your stop point.

Do it twice, once on the style you like most and once on a style you like less. If your stop point is about the same on both, it is a stable preference: you know how strong you want your brows to look. If it moves a lot, the style is affecting your sense of strength, which is worth mentioning too. Lighting and your screen brightness also change what you see, so do the test in one sitting.

What your stop point tells me

A stop point toward Lighter usually tells me you want your brows to frame the face quietly, and that the colour conversation should start soft. A stop point in the middle tells me you want them visible but not leading. A stop point toward Darker tells me you are used to a defined brow, perhaps from makeup, and want that strength.

None of these is a colour. A screen setting cannot tell me what will suit your hair tone or how your own hairs will sit next to the strokes. I generally prefer the first design to be softer than people expect, because a brow is easier to strengthen later than to soften. For men, I keep the colour lighter than the reference photo. Your stop point tells me where you want to end up; it does not choose the path.

Compare it with your everyday makeup

One more check. If you draw your brows most days, take a photo of your made-up brows in daylight and compare it with the card at your stop point. Is the card lighter, about the same, or darker? Many people find their stop point is lighter than their usual makeup, which is useful to know: it may mean you draw more strongly than you actually want.

If you never wear brow makeup, compare the card with your original photo instead. A stop point very close to the original suggests you want a subtle change. People differ, and both answers are fine. What matters is that you can say it in a sentence.

Save the card where you stopped

Save the comparison card at your stop point, not at the default. Then add one line when you send it: 'I stopped about a third of the way from Lighter.' Consultations at London Brow are translation-assisted over WhatsApp, and a position on the slider survives translation perfectly. With that line and a bare-brow photo, I know how the colour conversation should begin. AI virtual brows are not a result, but this is one of the clearest preferences you can send.

Common questions