Hair-care guide

Hair density

TheWashDay editorial · Updated · How we compare

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Hair density is how many strands grow on your head, not how thick each strand is. Low-density hair shows the scalp easily and gets weighed down; high-density hair takes longer to wet, detangle and dry and needs more product and more sections. Density decides your amounts and sectioning more than your curl type does.

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You see your scalp easily

Low density: smaller amounts, lighter layers, lift at the roots.

Low density

You push hair aside to see your scalp

High density: more sections, enough product to reach each one, dry in stages.

High density

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How to check

How to check your density

Part your dry hair down the middle in good light. If you see a lot of scalp along the part without moving any hair, density is probably low. If you have to push hair aside to see the scalp, it is probably high.

A ponytail helps too: a slim one suggests low density and a thick one high density, though strand thickness changes how a ponytail feels. Density often differs between the crown, the temples and the nape. Slow drying on its own doesn’t tell you density: section size, the products you layer and airflow all change drying time.

Low density

  • Use smaller amounts of leave-in and styler; measure them so you can change one thing at a time.
  • Prefer foams and light gels over heavy creams and butters.
  • Clip the roots up while drying for lift.
  • Wash more often if roots get oily or flat.

High density

  • Wash, condition and style in sections so product reaches every strand.
  • Use enough conditioner and leave-in to cover every section, and measure how much you actually use.
  • Expect long drying: diffuse in stages, or air-dry overnight in twists or braids.
  • Clarify when products stop working; more product means more build-up.

Updated · The sources for this guide are on our Sources page. Report a changed detail.

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