Free hair porosity test:
what's your porosity?
Answer 8 quick questions and find out whether you have low, medium, or high porosity hair, then get a routine and product picks chosen across every brand, not just one.
A hair porosity test tells you whether your hair absorbs and holds moisture easily, low, medium, or high, so you can pick products that actually work.
When you wet your hair in the shower, how does it respond?
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✓ Do this
✕ Avoid this
Recommended for your hair
Product types that suit your porosity, so you can grab whichever brand you already trust.
Porosity is how well your hair takes in and holds moisture
Your cuticle, the outer layer of each strand, can lie flat and tight or sit raised and open. How open it is decides which products and techniques will actually work for you.
Low porosity
A tight cuticle that resists moisture getting in, but holds it well once it does.
- Products sit on top and feel greasy
- Takes a long time to air-dry
- Water beads up on the surface
Medium porosity
The balanced sweet spot that absorbs and retains moisture with little effort.
- Holds styles well
- Dries in a normal amount of time
- Takes color evenly
High porosity
A raised cuticle that soaks up moisture fast, and loses it just as fast.
- Dries very quickly
- Prone to frizz and dryness
- Often from color, bleach, or heat
Porosity matters most for curly, coily, and natural hair
Tighter curl patterns make it harder for the scalp's natural oils to travel down the strand, so knowing your porosity is the fastest way to stop wasting money on products that sit on top or wash straight out.
Every recommendation here is chosen to fit your porosity, picked with curly and coily hair in mind.
How to test hair porosity at home: three checks to compare with your result
The float test
Drop a few freshly clarified, dry strands into a glass of room-temperature water. Floats on top may lean low. Hovers or sinks slowly suggests the middle. Sinks quickly may lean high. It is a rough check: oils and residue can make almost any strand float.
The spray test
Mist a small dry section with water. If it beads and rolls off, you may lean low. If it soaks in instantly, you may lean high.
The slide test
Slide your fingers up a strand toward the root. Smooth may mean a flat cuticle (low). Bumpy or rough may mean a raised one (high).
Want the full walkthrough with photos? Read the complete water (float) test guide.
How this test works
Here is exactly how your answers turn into a low, medium, or high result, and how the quiz compares with the checks you can do by hand.
The quiz asks 8 questions about how your hair behaves. Every answer leans low, medium, or high and scores 1, 2, or 3 points. Your result is the average of the questions you answered:
- Low porosity: an average of 1.66 or lower.
- Medium porosity: an average above 1.66 and below 2.34.
- High porosity: an average of 2.34 or higher.
The float test question is the only one you can skip. A skipped question is left out of the average instead of being counted as medium, so it does not pull your result either way. On the color and heat question, both virgin hair and occasional color or heat count as medium, so untreated hair is never pushed toward low by that answer alone. The marker on your result bar shows where your average landed, so you can see whether you sit firmly in one group or close to the line.
Your individual answers stay in your browser. When you finish, only the result itself (low, medium, or high) is counted, which is where the numbers on our quiz results page come from.
The 8 questions
- When you wet your hair in the shower, how does it respond?
- How long does your hair take to air-dry?
- When you apply oil or leave-in, what happens?
- The float test: a clean, dry strand in a glass of water...
- Slide your fingers up a strand toward the root. It feels...
- How would you describe your hair day to day?
- What is your hair's history with color, bleach, or heat?
- After washing, how long does your hair stay moisturized?
What each at-home test actually measures
| Test | What it looks at | How much to trust it |
|---|---|---|
| The quiz | Eight everyday signs at once: how your hair wets and dries, how products absorb, how a strand feels, and your color and heat history | The best place to start, because it weighs several signs instead of one. It is still a home read, not a lab measurement. |
| Water (float) test | Whether a clean, dry strand floats, hovers, or sinks in a glass of water after a few minutes | A rough check only. Oils, residue, and surface tension can make almost any strand float, and no study has shown it reliably measures porosity. |
| Spray test | Whether water beads up on a dry section or soaks straight in | A quick clue about how fast water gets in. Best read alongside the other signs. |
| Strand slide test | Whether a strand feels smooth or bumpy as you slide your fingers toward the root | A clue about whether the cuticle lies flat or sits raised. It is judged by feel, so treat it as one sign among several. |
When two or three of these agree, you can feel more confident in your result. When they disagree, go with the quiz and how your hair behaves on wash day. For the full float test walkthrough, see the water test guide.
Guides for every porosity question
Once you know your result, these walk you through exactly what to do next.
Hair porosity questions, answered
Can my hair porosity change over time?
Yes. Your starting porosity comes from the natural structure of your hair, but heat styling, coloring, bleaching, and chemical treatments all raise the cuticle and push hair toward high porosity. That is why retesting every few months, especially after a color change, is worth doing.
Is the quiz as accurate as the float test?
The quiz reads the same signals stylists use: drying time, product absorption, frizz, and your styling history. The float test is a rough home check that oils, residue, and surface tension can easily throw off, so treat it as one extra clue alongside the quiz rather than the final word. If the two disagree, go with the quiz and how your hair behaves on wash day.
How do I know if my hair is high or low porosity?
The fastest way is this quiz. To check your hair porosity yourself, watch how your hair behaves: if water beads on top and products sit on the surface, you likely lean low porosity, and if your hair soaks up water and dries fast, you likely lean high. The quiz answers "what is my hair porosity" in about a minute, and the float test can add a rough extra clue.
Can different parts of my hair have different porosity?
Often, yes. Ends are usually older and more weathered than roots, so they can read higher porosity. If your ends are colored or heat-damaged, treat them as higher porosity than your roots.
What if I am transitioning, or my roots and ends feel different?
Treat your hair as two zones. Newer growth near the roots is usually lower porosity, while older, color-treated, or relaxed ends read higher. Use lighter, water-based products at the roots, and save the richer creams, proteins, and sealing oils for your ends. When in doubt, follow your ends, since they show damage first and need the most help.
What is the most common hair porosity?
Medium (normal) porosity is the most common result in our own quiz data and the easiest to care for. That said, plenty of people, especially with curly, coily, or color-treated hair, lean low or high, which is exactly why testing your own is worth the 60 seconds.
Does porosity matter for fine, wavy, or straight hair?
Yes. Porosity applies to every hair type, not just curly and coily. Fine and wavy hair often leans low or medium porosity and can be weighed down easily, so it usually does best with lighter, water-based products and only occasional protein. The same test and the same three results apply to you.
Can low porosity hair still be dry?
Yes. Low porosity hair resists moisture getting in, so it can feel dry even when you use plenty of product, because the product sits on top instead of absorbing. Lightweight, water-based products help, and gentle warmth while you deep condition helps conditioner work in faster.
Is high or low porosity better?
Neither is better. Medium porosity is the easiest to manage, but low and high porosity hair can both be healthy. What matters is matching your routine to your cuticle instead of fighting it.
Do I need different products for low and high porosity?
Yes. Low porosity does best with lightweight, water-based products and humectants, while high porosity needs protein, richer creams, and sealing oils. Using the wrong type is the usual reason products do not seem to work.
Do you store my answers?
No. Your answers stay in your browser. When you finish, only the final result (low, medium or high) is counted anonymously for our published quiz statistics. There is no account or email required to see your result.
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