The hair type chart, explained
The most common system groups hair by curl pattern into four types, each split into A, B and C by how tight the pattern is.
Type 1 · Straight
1A is fine and very straight, 1B has a little body, and 1C is straight but coarser with a slight bend. Straight hair gets oily faster because scalp oils travel down the strand easily.
Type 2 · Wavy
2A has loose, gentle S-waves, 2B has more defined waves that start mid-length, and 2C has strong waves from the root that can frizz. Lightweight products keep waves from falling flat.
Type 3 · Curly
3A has large, loose loops, 3B has springy ringlets about the width of a marker, and 3C has tight corkscrews about the width of a pencil. Curls love moisture and gentle detangling.
Type 4 · Coily
4A has tight, defined coils, 4B has a zig-zag pattern with less definition, and 4C has the tightest pattern with lots of shrinkage. Coily hair is the most fragile type and benefits from rich moisture and protective styles.
Curl pattern isn't everything
Two people with 2B hair can still need different care. Strand thickness (fine, medium or coarse) and density (how many strands you have) change how much volume you get and how heavy your products can be. Our analyzer estimates both alongside your type.