The 4A–4C classification system was designed to help people understand their natural hair and make better choices about care and styling. But most online guides are vague, and many people still aren't sure which type they have — or what it actually means for their routine.
The type 4 hair family
Type 4 hair — often called Afro or coily hair — refers to the tightest, most coiled end of the natural hair spectrum. It sits in the Andre Walker hair typing system alongside types 1 (straight), 2 (wavy), and 3 (curly). Within type 4, there are three sub-categories: 4A, 4B, and 4C.
It's worth noting that many people have more than one type on their head — your crown might be 4C while your edges are closer to 4A. The classification is a guide, not a rigid box.
4A, 4B and 4C — the key differences
Type 4A hair
4A hair has a defined S-shaped curl pattern with a circumference roughly the size of a crochet needle. The curls are tightly coiled but retain a visible spiral shape when the hair is at its best moisture level.
- •Visible, defined coil/spiral pattern
- •More moisture-retentive than 4B/4C
- •Prone to shrinkage (50–60%)
- •Responds well to wash-and-go styles
Care approach
Hydration is key. Co-washing (conditioner washing) works well for many 4A textures. The LOC method (Liquid, Oil, Cream) helps seal in moisture.
Type 4B hair
4B hair bends in sharp angles rather than curling in a defined spiral — often described as a Z-pattern or zigzag. The coils are tighter than 4A and the pattern is less defined without product.
- •Z-shaped or zig-zag coil pattern
- •Significant shrinkage (60–70%)
- •Requires more moisture than 4A
- •Less defined without product; can look fluffy or undefined when dry
Care approach
Regular deep conditioning is essential. Stretching styles (twists, braids, banding) help manage shrinkage. Moisturise in sections to ensure even coverage.
Type 4C hair
4C hair is the most tightly coiled type in the type 4 family. The coils are so tight that the pattern can be difficult to see without careful inspection. It shares characteristics with 4B but the coils are smaller, denser, and more fragile.
- •Densely packed, tightly coiled pattern
- •Highest shrinkage of all types (up to 75%)
- •Most prone to dryness and breakage
- •Strongest visual impact when fully moisturised and stretched
Care approach
Moisture retention is the central challenge. Use water as a base, seal with a butter or oil, and minimise manipulation. Protective styles are particularly beneficial for length retention.
Why it matters when choosing a stylist
The difference between 4A and 4C isn't just aesthetic — it changes the products, techniques, and level of care required. A stylist experienced with 3C or 4A hair may not have the depth of knowledge needed to handle 4C hair without causing breakage or scalp stress.
When booking a specialist, always specify your hair type and ask to see examples of work they've done on the same type. FindStylist makes this easy — every specialist profile shows which curl types they work with, verified by our team.