Type 4 · Coily

4A Hair

Dense springy coils with a visible S-pattern. Type 4A hair forms tight, springy coils about the width of a crochet needle with a visible S-pattern. Learn how to identify 4A hair and build a moisture-first routine that retains length.

Build my 4A routine

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How do I know if I have 4A hair?

Your coils are tight and springy, about the circumference of a crochet needle, and they hold a visible S-shape when you stretch one out. The pattern is defined enough to see individual coils.

Key characteristics of 4A hair

  • Tight, springy coils roughly the width of a crochet needle
  • Visible S-pattern when a coil is stretched
  • Around 50–70% shrinkage from wet to dry
  • Retains a defined pattern better than 4B or 4C
  • Dries out quickly without sealing

The one thing 4A hair struggles with most

Moisture loss. Type 4A has so many tight bends that the cuticle is naturally raised at every turn, letting water escape fast. The sealing step is what separates a good 4A routine from a failing one.

What 4A hair needs

  • LOC or LCO method — liquid, then oil or cream, then the other
  • Weekly deep conditioning with a heat cap
  • Wash-and-go or twist-out styling to show the coil pattern
  • Satin bonnet nightly to preserve moisture and definition

What 4A hair should avoid

  • Sulfates and any stripping cleanser
  • Dry combing, which causes immediate breakage
  • Skipping the sealing step after applying water-based product
  • Excessive protein without matching moisture

4A hair and porosity

4A hair is typically high porosity. That is why the order of products matters so much: water first to hydrate, then a cream or oil to lock it in before it evaporates.

Get a routine built for 4A hair

Knowing your type is the first half. The quiz covers the other half — your porosity, scalp condition, damage level, and which ingredients your hair does not tolerate — then builds the routine around all of it.

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