The Hair Typing System Explained
Remember: Hair type is just one piece of the puzzle. Your hair's porosity, density, and thickness also affect what products and routines work best.
You can have multiple hair types on your head! It's common to have tighter curls at the nape of your neck and looser patterns at the crown.
Explore the Hair Type Spectrum
Drag the slider to see how hair patterns change from straight to coily
Type 3A — Loose Curls
Big, loose ringlets about the width of sidewalk chalk. Shiny when healthy, frizz-prone when dry.
How to find your type on the chart
- Wash, skip leave-ins and stylers, and let your hair air-dry.
- Look at the mid-lengths, not the crown or the ends: does the hair lie flat (1), bend into an S (2), form ringlets (3), or coil tightly or zig-zag (4)?
- Pick the letter: looser or finer is A, in-between is B, tighter or coarser is C.
- If two rows fit, use the one that matches most of your head and note the other.
Your type tells you the styling approach. Strand width, porosity, and density tell you how light or rich your products should be. Build my hair profile to put those together.
Complete Hair Type Chart: 1A to 4C
Type 1: Straight
Type 2: Wavy
Type 3: Curly
Type 4: Coily
What the letters A, B, and C mean
The number is the curl family. The letter is the scale inside it. A is the loosest or finest version of that family, B sits in the middle, and C is the tightest or coarsest.
So 2A is a soft, loose wave and 2C is a deeper wave that starts closer to the root. 3A is a big, loose curl and 3C is a tight corkscrew. 4A is a defined S-shaped coil and 4C is the tightest, most compact coil. In Type 1 there is no curl to measure, so the letter mostly tracks how fine or coarse a straight strand is (1A fine, 1C coarse).
Read the chart as one scale from 1A to 4C. Many heads sit between two letters or mix two patterns, so pick the closest row rather than waiting for an exact match.
Hair Type Reference Table
| Type | Pattern | Description | Key Need |
|---|---|---|---|
| 1A | Straight | Very fine, soft, silky. No curl. Gets oily quickly. | Volume, lightweight products |
| 1B | Straight | Medium body, more volume than 1A. Holds styles better. | Texture, regular trims |
| 1C | Straight | Coarse, thick, resistant to styling. May have slight bend. | Smoothing, anti-frizz |
| 2A | Wavy | Fine, tousled texture. Gentle S-shaped waves. | Lightweight mousses, sea salt spray |
| 2B | Wavy | Defined S-waves from mid-length. Frizz-prone. | Medium-hold gels, anti-frizz |
| 2C | Wavy | Thick S-waves from roots. Mix of waves and curls. | Strong-hold gels, deep conditioning |
| 3A | Curly | Loose curls, chalk-sized circumference. Shiny when healthy. | Moisture, frizz control |
| 3B | Curly | Springy ringlets, marker-sized. More volume and dryness. | Rich creams, leave-in conditioner |
| 3C | Curly | Tight corkscrews, pencil-sized. Very prone to dryness. | LOC/LCO method, protein treatments |
| 4A | Coily | Tightly coiled S-pattern. Visible curl definition. | Rich moisturizers, protective styles |
| 4B | Coily | Sharp Z-pattern. Up to 75% shrinkage. Less defined. | Daily moisturizing, gentle detangling |
| 4C | Coily | Densely packed, tightest coils. Most fragile. Up to 75% shrinkage. | Intense moisture, minimal manipulation |
Based on the Andre Walker Hair Typing System. Most people have a mix of types across their head.
Know your pattern? Build your hair profile.
The quiz asks about your curl family, scalp, density, and goals. Create an account at the end to save your profile and see matched products and guides.
Or browse the best shampoo for wavy hair guide if you already know your pattern.
Type 1: Straight Hair
No visible curl pattern. Hair lies flat from root to tip.
Type 1A: Fine & Straight
Very fine, soft, and silky. Difficult to hold a curl. Tends to get oily quickly because sebum travels down the hair shaft easily.
Best products: Lightweight products, volumizing formulas, frequent washing, avoid heavy oils and butters.
Type 1B: Medium & Straight
More body and volume than 1A. Holds styles better but still mostly straight.
Best products: Medium-weight products, texturizing sprays, regular trims to prevent flatness.
Type 1C: Coarse & Straight
Thickest and most resistant to styling. May have a slight bend but no curl. Can appear frizzy.
Best products: Smoothing products, anti-frizz serums, heat protectants for styling.
See the complete straight hair routine
Type 2: Wavy Hair
Forms an 'S' shape. Falls somewhere between straight and curly.
Type 2A: Loose Waves
Fine, tousled texture with a gentle 'S' pattern. Easy to straighten or curl. May get weighed down easily.
Best products: Lightweight mousses and gels, sea salt sprays for texture, avoid heavy creams.
Find a lightweight gel for your wavesType 2B: Defined Waves
More defined 'S' pattern that starts at mid-length. Tends toward frizz. More volume and body than 2A.
Best products: Medium-hold gels and creams, anti-frizz products, diffusing or plopping for definition.
Find a curl cream that defines your wavesType 2C: Coarse Waves/Loose Curls
Thick, coarse 'S' waves that start at the roots. More prone to frizz. Can have a mix of waves and curls.
Best products: Strong-hold gels, leave-in conditioners, deep conditioning masks, protein treatments.
Wavy Hair Tip
2A Routine 2B Routine 2C Routine
- Best shampoo for wavy hair — for 2A–2C.
- Fine + limp after stylers: best clarifying shampoo for fine hair.
- Shopping a Detox-style wash: OUAI Detox shampoo dupes.
Type 3: Curly Hair
Well-defined spiral curls that form ringlets. Prone to frizz and dryness.
Type 3A: Loose Curls
Big, loose curls with a circumference similar to sidewalk chalk. Shiny when healthy but prone to frizz.
Best products: Lightweight creams and gels, mousse for volume, regular deep conditioning.
Find a deep conditioning mask for your curlsType 3B: Tight Curls
Springy ringlets with a circumference similar to a Sharpie marker. More volume and dryness than 3A.
Best products: Rich creams and butters, leave-in conditioners, oils to seal moisture, minimal heat styling.
Type 3C: Corkscrew Curls
Tight corkscrew curls or coils with circumference of a pencil or straw. Lots of volume, very prone to dryness and shrinkage.
Best products: Heavy creams and butters, layering products (LOC or LCO method), regular protein treatments.
A layering technique for maximum moisture retention:
- Liquid (water or leave-in conditioner)
- Oil (to penetrate the hair shaft)
- Cream (to seal in moisture)
Try both orders (LOC vs LCO) to see what works best for your hair! Learn more in our LOC Method glossary entry.
3A Routine 3B Routine 3C Routine
Type 4: Coily/Kinky Hair
Tightly coiled hair with significant shrinkage. Very fragile and prone to dryness.
Type 4A: Coiled
Tightly coiled 'S' pattern with visible curl definition. Retains moisture better than 4B/4C.
Best products: Rich moisturizers, butter-based products, regular deep conditioning, protective styling.
Find a hair oil for coily hairType 4B: Z-Pattern Coils
Sharp-angled 'Z' pattern instead of curls. Less defined curl pattern. Experiences significant shrinkage.
Best products: Heavy butters and oils, daily moisturizing, gentle detangling when wet, protective styles.
Type 4C: Tightly Coiled
Most fragile hair type. Densely packed coils with little to no visible curl pattern. Significant shrinkage.
Best products: Intense moisture (water-based products), sealing with heavy oils/butters, minimal manipulation, protective styling essential.
Handle With Care
4A Routine 4B Routine 4C Routine
Beyond Hair Type: Other Important Factors
Hair type alone doesn't tell the full story. These additional characteristics are equally important when building your routine:
- Porosity
- How well your hair absorbs and retains moisture. This determines which products and techniques will actually work for you. Learn more
- Density
- How many hair strands you have per square inch — thin, medium, or thick. Affects how much product you need and which styles work best.
- Width/Diameter
- The thickness of individual strands (fine, medium, or coarse). Fine hair needs lighter products; coarse hair can handle richer formulas.
- Elasticity
- How much a strand stretches before breaking. Treat this as a description of the strand, not a diagnosis of protein deficiency or a measure of overall hair health.
Know your pattern? Build your hair profile.
- 01Hair types range from Type 1 (straight) to Type 4 (coily)
- 02Subtypes A, B, C indicate how fine/coarse or tight the pattern is
- 03Type 1: Focus on volume and avoiding buildup
- 04Type 2: Balance definition without weighing down (2C is the waviest, closest to curly)
- 05Type 3: Prioritize moisture and frizz control
- 06Type 4: Intense moisture, gentle handling, protective styling
- 07Consider porosity, density, and elasticity alongside type
- 08Take our quiz to build a profile from your curl family, scalp, and goals