3A vs 3B Hair: Curl Size, Density, and Moisture Needs

Type 3 curls break into three sub-types. Moving from 3A to 3B tightens the curl and usually increases dryness and styling effort.

3A curls are looser spirals with a tendency to shine when healthy. They can be easier to stretch with heat or tension, which means damage can accumulate if heat protectants and moisture are neglected.

3B curls are closer to marker- or finger-width ringlets. The pattern packs more densely on the head, which increases volume but also raises the risk of tangles midway through the length.

Deep conditioning schedules often shift as you go from 3A to 3B. Three-A may only need a weekly mask if porosity is low, while 3B frequently benefits from mid-week refreshes and richer leave-ins.

For personalized tips, visit each type’s care and product pages after you confirm your code with the quiz or chart.