Hair Type Quiz: Find Your Curl Pattern (1A–4C)
The short answer
Your hair type is determined by your curl pattern — wash, air-dry, and assess.
How to Find Your Hair Type
Before you start, your hair must be:
- Freshly washed with a gentle, sulfate-free shampoo
- Free of all styling products (no leave-in, gel, cream, or oil)
- Air-dried — heat dries out the pattern; air-drying reveals the true shape
Once dry, look at your hair from roots to ends. The shape it naturally falls into is your curl type.
The Hair Typing System: A Quick Overview
The most widely adopted system — created by stylist Andre Walker in the 1990s and used by dermatologists, trichologists, and consumers worldwide — divides hair into four categories:
| Type | Name | Pattern Description |
|---|---|---|
| 1 | Straight | No wave or curl; falls flat from root to tip |
| 2 | Wavy | S-shaped bends; waves visible when dry |
| 3 | Curly | Defined springy curls; ringlets or corkscrews |
| 4 | Coily / Kinky | Tight coils, dense spirals, or Z-shaped pattern |
Each type has three sub-categories — A (loosest), B (medium), and C (tightest or most intense) — giving 12 classifications in total from 1A to 4C.
A 2022 study published in the International Journal of Women's Dermatology validated the clinical utility of this four-category framework, finding that alopecia subtypes differ significantly among the four primary curl patterns and that "curl pattern appears more significant than ethnicity" in predicting hair disorder risk.
The Full Curl Pattern Guide
Type 1: Straight Hair
Straight hair has no S-shaped bends or spiral coils. The hair lies flat against the scalp, and the natural oils from the scalp travel quickly down the entire shaft — which is why Type 1 hair is often oily and shiny but can lack volume.
| Sub-type | What It Looks Like | Key Trait |
|---|---|---|
| 1A | Pin-straight, very fine, completely flat | No body; oils accumulate fastest; rarest type |
| 1B | Straight with slight body and gentle bend at ends | Most common straight type; holds curls briefly with heat |
| 1C | Straight but thick and coarse; may have a slight bend | Most resistant to curling; prone to frizz in humidity |
The key test: If your air-dried hair shows zero wave pattern at the midlengths, you have Type 1 hair.
Type 2: Wavy Hair
Wavy hair has a clear S-shaped bend — visible waves that run from mid-shaft to ends (and at the roots in 2C). It sits between straight and curly on the texture spectrum.
| Sub-type | What It Looks Like | Key Trait |
|---|---|---|
| 2A | Loose, barely-there S-waves starting at mid-shaft | Fine strands; easy to straighten; waves easily weighed down |
| 2B | More defined S-waves starting nearer the roots; sticks to the shape of the head | Moderate volume; frizzes in humidity |
| 2C | Strong waves often bordering on loose curls; starts at roots | Most frizz-prone wave type; thickest/coarsest of the wavy types |
The key test: You see a consistent, repeating S-bend in your hair when it dries. The waves form naturally without any diffusing or products.
Type 3: Curly Hair
Curly hair has clearly defined, springy curls that bounce back when stretched and released. The curl forms a loop — not just a bend.
| Sub-type | What It Looks Like | Key Trait |
|---|---|---|
| 3A | Loose, large-diameter ringlets (roughly the width of a thick marker) | Shiny, full curls; most easily straightened of Type 3 |
| 3B | Tighter ringlets, roughly the circumference of a Sharpie | Springs noticeably when stretched; more volume and density |
| 3C | Very tight corkscrews, roughly the width of a pencil or straw | Highest density and volume in Type 3; added by the natural hair community, not in Walker's original system |
The key test: Your dry, product-free hair has a looping, spring-back curl — not just a wave.
Type 4: Coily / Kinky Hair
Type 4 hair is the most tightly textured category. Individual strands curl back on themselves in tight coils (4A), Z-shaped bends (4B), or near-invisible springs (4C). Type 4 hair has the greatest shrinkage — it can appear 50–75% shorter than its actual length.
| Sub-type | What It Looks Like | Key Trait |
|---|---|---|
| 4A | Tight, defined coils — roughly the circumference of a crochet needle | Visible coil definition; most moisture-retaining of Type 4 |
| 4B | Z-shaped, sharp bends — less defined looping coil | Densest appearance; shrinks significantly |
| 4C | Extremely tight, tightly packed coils — almost no visible definition when dry | Highest shrinkage; most fragile; most prone to dryness and breakage |
The key test: Your hair shrinks dramatically on drying, and individual strands coil so tightly the curl is hard to see without stretching.
Hair Type vs. Hair Properties: Know All Four Dimensions
Curl type is the foundation — but it doesn't tell you everything. Four dimensions together determine how your hair behaves and what it needs:
| Dimension | What It Measures | How to Test |
|---|---|---|
| Curl pattern (Type 1–4) | Shape of the hair strand | Wash, air-dry, observe |
| Porosity (low/medium/high) | Cuticle's ability to absorb and retain moisture | Float test: drop a clean strand in water — floats = low porosity, sinks = high porosity |
| Density (low/medium/high) | Number of strands per square inch of scalp | Pull hair to one side: can you easily see the scalp? Low density. Hard to see it? High density. |
| Strand thickness (fine/medium/coarse) | Diameter of each individual strand | Hold a single shed strand between fingers — if barely perceptible, it's fine; if it feels like a thread, it's coarse |
How Hair Type Determines Your Routine
The American Academy of Dermatology's guidance maps directly to these categories:
Type 1 (Straight): Natural oils distribute quickly from scalp to ends, so frequent washing (daily or every other day) is often needed. Conditioner belongs on the ends only — not the scalp. Lightweight, oil-free products prevent limpness.
Type 2 (Wavy): The S-bend slows oil distribution slightly, so washing every 2–3 days typically suits most. The goal is enhancing wave definition without weighing strands down — lightweight gels and mousses, not heavy creams.
Type 3 (Curly): The curl loops further slow oil travel to the ends, making coils naturally drier. The AAD recommends washing every 2–3 weeks and conditioning the full length of the hair — not just the ends. Detangle only on wet hair with a wide-tooth comb or fingers, working from ends to roots.
Type 4 (Coily): The tightest coils are the driest of all — oil cannot travel down the Z-bends and tight coils to reach the ends at all. Washing every 1–3 weeks is appropriate for most. Deep conditioning, protective styles, and gentle handling are essential. The AAD specifically recommends satin or silk sleep protection and using a hot oil treatment twice a month for this hair type.
Common Mistakes When Finding Your Hair Type
Using product-loaded or heat-styled hair. Applying styling products before classification, or assessing after blow-drying or using a flat iron, will misclassify your hair. Always assess freshly washed, air-dried, product-free hair.
Assuming one hair type describes your whole head. Most people have at least two curl patterns — commonly looser at the crown, tighter at the nape. The convention is to identify by the dominant pattern on the bulk of your head.
Conflating curl type with hair health. Tight coils are not "damaged" or "difficult" — they are a distinct genetic hair morphology. The biology of curl formation is determined by the asymmetric arrangement of ortho- and para-cortical cells in the hair shaft (the orthocortex concentrates on the outer edge of the curl, the paracortex on the inner edge), which is genetically encoded and completely normal.
Trying to achieve a tighter or looser pattern than your natural type. Products cannot change your actual curl pattern — they can enhance or relax the appearance, but not the underlying follicle shape. Claims that a product "defines your curl type" mean it enhances your existing pattern, not that it changes it.
A Note on the System's Limits
The 1A–4C system is widely useful but was designed primarily for marketing hair products. It does not account for porosity, density, or strand thickness — all of which substantially affect product performance. It also uses English-language aesthetic categories that don't map cleanly onto all global hair textures, and many people, particularly those of mixed heritage, find their hair doesn't fit neatly into a single sub-type. Use the system as a starting framework, not a rigid classification.
Products that fit: curly hair
Picked by code from each product's full ingredient list.
Moroccanoil
Clarifying Shampoo
shampoo · 250 ml · 44 ingredients
- Sulfate-free
- Silicone-free
- No drying alcohol
- With panthenol
- With glycerin
Ziaja
Goat’s Milk Hair Conditioner
conditioner · 200 ml · 13 ingredients
- Sulfate-free
- Silicone-free
- No drying alcohol
- With panthenol
- With keratin
Sukin
Deep Hydrating Shampoo
shampoo · 1 l · 24 ingredients
- Sulfate-free
- Silicone-free
- No drying alcohol
- With shea butter
- With glycerin
The Body Shop
Shea Intense Repair Conditioner
conditioner · 250 ml · 21 ingredients
- Sulfate-free
- Silicone-free
- No drying alcohol
- With shea butter
- With panthenol
Frequently asked questions
Is the hair type quiz system still the standard in 2026?
The 1A–4C system remains the most widely used consumer and clinical classification for curl pattern, and a 2022 peer-reviewed study in the International Journal of Women's Dermatology confirmed it has genuine clinical value — curl pattern correlates significantly with alopecia subtype risk. That said, dermatologists recognize the system's limits: it was originally a marketing tool and doesn't capture porosity, density, or strand thickness, which are equally important for product selection and hair health assessment.
How do I tell the difference between 2C and 3A hair?
The key distinction is whether the pattern forms a wave or a loop. Type 2C hair has a strong S-shaped wave — a bend that goes up and down but doesn't complete a circular loop. Type 3A hair forms a distinct ringlet or corkscrew — a full spiral loop roughly the diameter of a thick marker. If you can insert your finger into a curl and it forms a ring around it, you likely have Type 3A. If it bends into an S but doesn't loop back on itself, it's 2C. The pattern at mid-length on air-dried, product-free hair is the most reliable indicator.
Can my hair type change over time?
The fundamental curl pattern encoded in your follicle shape is genetic and does not change — however, apparent curl pattern can shift. Hormonal changes (puberty, pregnancy, menopause, thyroid disorders) can alter curl tightness or texture. Chemical treatments (relaxers, perms, bleach) can permanently or semi-permanently alter the cortex structure and change the visible pattern. Significant hair damage increases porosity and can make curls appear less defined or more frizzy. Hair type can also appear different before and after a significant haircut, since the weight of long hair pulls waves and curls looser.
Does hair type determine which products I should use?
Curl type is the starting point but not the whole picture. Product weight is the primary rule: Type 1 (straight) needs the lightest formulas to avoid limpness; Type 4 (coily) can benefit from the richest butters and oils. But porosity overrides curl type for moisture product selection — low-porosity hair needs heat or steam to open the cuticle for absorption, regardless of curl type; high-porosity hair needs heavier sealants to retain moisture. The best approach is to start with curl-type guidance and refine based on how your hair actually responds.
Is the float test for porosity accurate?
The float test (dropping a clean shed strand into water and observing whether it floats or sinks) is a commonly cited at-home method, but its reliability is contested. Hair cleanliness, product residue, surface tension, and how recently the strand was shed all affect the result. Trichologists generally consider the feel test — how long hair takes to absorb water during washing, whether product sits on top or absorbs quickly — to be more practically reliable. The float test can give a rough indication but should not be treated as definitive.
What does it mean if I have multiple hair types on my head?
Having more than one curl pattern on a single head is normal and extremely common — not a sign of damage or an anomaly. The crown tends to have a looser pattern than the nape, and the temples often differ from the back sections. This happens because different follicles across the scalp are shaped slightly differently. The convention is to identify your hair type by the dominant pattern across the majority of your hair, and to customize your routine section by section if the difference between your patterns is significant.
Sources
- 01Curl pattern classification: A potential tool for communication and risk stratification — International Journal of Women's Dermatology / PubMed Central, 2022-06-01. Curl pattern classification has clinical value; alopecia subtypes differ significantly among the four primary curl patterns (P=0.011); curl pattern appears more significant than ethnicity in predicting alopecia subtype risk.
- 02The biology and genetics of curly hair — PubMed / Experimental Dermatology (Wiley), 2017-04-01. Hair curl results from the asymmetric bilateral arrangement of ortho- and paracortical cells in the shaft; the hair follicle shape (elliptical vs. round cross-section) is the primary anatomical determinant of straight vs. curly fiber morphology; key genes include TCHH, KRT74, and CUTC.
- 036 curly hair care tips from dermatologists — American Academy of Dermatology (aad.org). AAD recommends washing curly hair at minimum every 2–3 weeks; conditioning the full length; detangling on wet hair only; using moisturizing shampoos and conditioners with glycerin, argan oil, or fatty alcohols; protecting hair during sleep.
- 04Tips for healthy hair — American Academy of Dermatology (aad.org). AAD recommends identifying hair type to choose appropriate products; washing frequency should be based on how often hair becomes oily; apply shampoo to the scalp rather than lengths; conditioner application varies by type.
- 05Hair: Types and care instructions — Medical News Today. Hair type is determined by follicle shape; the Andre Walker 1–4 system (with A/B/C sub-types) is the most widely adopted hair typing classification; porosity, density, and strand thickness are separate hair properties that influence care choices.
- 06Andre Walker Hair Typing System — Wikipedia (citing original Walker, 1997). The Andre Walker system was created in the 1990s and classifies hair into Types 1–4 (straight to coily) with A/B/C sub-categories; Type 3C was added by the natural hair community and was not part of Walker's original system.