Nit or dandruff? How to tell the difference

Those little white specks could be either — and the answer changes what you do next. Here are the quick checks that settle it in seconds.

You're peering at your child's scalp, you've found some little white flecks, and now the big question: is it nits or just dandruff? It's one of the most common things parents ask us, and the good news is you don't need a magnifying glass or a science degree to work it out. A handful of simple checks will usually settle it in under a minute.

The one test that matters most

If you remember nothing else, remember this: nits are glued on, dandruff falls off. A nit (a lice egg) is cemented firmly to a single hair shaft by the louse that laid it. Dandruff is loose skin flakes that sit on the scalp or scatter through the hair and brush away with no effort at all.

So the quick test is to try to move the speck. Slide it with your fingernail or give the hair a gentle shake:

• Won't budge — slides only with real effort, staying stuck to the strand? That's very likely a nit.
• Flicks off easily, or shifts up and down the hair? That's almost certainly dandruff (or a bit of hair product, sand, or lint).

Quick rule of thumb: if you can blow it or brush it away, it isn't a nit. Nits hold on.

The other clues

Where you find it

Dandruff is spread loosely across the scalp and ends up on collars and shoulders. Nits cluster on the hair, and lice favour warm spots — the nape of the neck and behind the ears are classic hiding places.

What it looks like

Nits are remarkably consistent: small, oval, teardrop-shaped and roughly pinhead-sized. Dandruff flakes are irregular, vary in size, and look more like dry skin than tidy little ovals.

Colour

A live, unhatched nit is usually translucent or tan. After hatching, the empty egg case looks whiter and tends to sit further from the scalp as the hair grows. Dandruff is generally white to slightly yellow and flaky throughout.

How UV detection removes the guesswork

ISpyNits UV Glo-Powder makes lice eggs glow under UV light. Apply it through dry hair, dim the room, shine a UV torch over the scalp, and the nits light up — so instead of debating whether a speck is glued on or not, you can simply see them. Dandruff doesn't light up the same way, so the UV scan also helps you rule lice out with confidence.

What to do next

If your checks (and a UV scan) point to dandruff, a gentle, scalp-soothing shampoo routine is usually all that's needed. If it's nits, don't panic — head lice are common, harmless and very treatable. Always read the label and follow the directions for use on any product.