Okay so a few years back. I was standing in my bathroom watching an entire blob of conditioner just… disappear into my hair. Like, gone in three seconds. My hair dry super fast, get frizzy by lunchtime and tangle if I even looked at it funny. Honestly thought my hair was just “bad.”
Turns out it wasn’t bad. It was just high porosity. Nobody told me what that meant though so I figure it out.
If this sounds like your hair too keep reading. I’ll explain in plain, easy words: what high porosity hair actually is, why it happens and what helps.
What Does “Hair Porosity” Mean?
Simple way to think about it — your hair has these tiny layers on the outside, called the cuticle. Imagine roof shingles.
When those “shingles” sit flat and close together, water and products can’t get in or out easily. That’s low porosity.
When those shingles are open or lifted up, water rushes in fast — but it leaves just as fast. That’s high porosity. Basically your hair soaks stuff up quick but can’t hold onto it.
There’s also “normal” porosity in the middle, which is honestly lucky hair. Most people aren’t there and that’s fine.
Signs You Might Have High Porosity Hair
Before I knew what this was called. I thought my hair was difficult. Looking back, the signs were kind of obvious:
- Hair soaks up water and product super fast
- Hair dries really quickly after washing
- Gets frizzy a lot, especially in humid weather
- Feels rough or dry to touch
- Tangles easily
- Looks dull instead of shiny
- Hair dye fades fast or grabs unevenly
There is a little test people do: drop a clean strand of hair in a glass of water. If it sinks fast that means high porosity. If it floats, that’s low porosity. It’s not 100% scientific but it is a fun quick check.
A Quick Story
I tried this test on a boring Sunday, not expecting much. My strand sank in like 10 seconds. My sister did the same test and hers floated for two whole minutes. That one small test explained why we always used the same products but got totally different results.
Why Does This Happen?
High porosity isn’t always something you are born with. Sometimes yes but a lot of the time it just develops over the years from stuff we do to our hair.
Genetics
Some people are born with more open hair cuticles. It runs in families sometimes.
Heat Styling
Straighteners, curling irons and blow dryers on high heat lift up the cuticle. Do this enough times and the cuticle stops closing back properly.
Chemical Treatments
Bleaching, relaxers, perms, frequent dyeing — these are big causes. I bleached my hair three times in one year in my early twenties and honestly, my hair has never been the same since.
Sun, Chlorine and Hard Water
Sun damage, pool chlorine and hard water with lots of minerals wear down your hair little by little.
Rough Handling
Towel-drying too rough, brushing too hard, tight hairstyles, sleeping on cotton pillowcases — none of it seems like a big deal on its own but it adds up.
The Annoying Stuff Nobody Warns You About
From my own experience, high porosity hair comes with its own special frustrations that other hair types just don’t deal with.
Your hair grabs moisture fast, which sounds nice, but it doesn’t hold onto it. It’s like filling a bucket that has little holes poked all over it — the water just leaks back out.
Too much protein is another sneaky problem. High porosity hair often needs protein to patch up the gaps in the cuticle, but overdo it and hair gets stiff and snaps easily. It took me too long to find the right balance.
Humidity and frizz are basically best friends when your cuticle is lifted up. Moisture from the air gets absorbed unevenly and boom — frizzy hair.
How to Take Care of It
Here’s the actual useful part. This is what changed things.
Seal In Moisture, Don’t Just Add It
Moisture alone won’t fix anything — you need to seal it in right after, or it just evaporates. A lot of people use the LOC method (Liquid, Oil, Cream) or LCO (Liquid, Cream, Oil) depending on what suits their hair.
Use Protein Treatments But Not Too Much
Protein fills the gaps in the cuticle and makes hair feel stronger and smoother. After trying this myself for months once 2-3 weeks worked best for me. Doing it weekly made my hair feel like straw.
Rinse With Cool Water
Nobody like cold showers I get it. But rinsing with cool or lukewarm water help the cuticle lay flat so moisture doesn’t escape as fast afterward.
Deep Condition Often
High porosity hair needs deep conditioning with heat, a warm towel works fine so the product soaks in instead of sitting on top.
Go Easy on Heat and Chemicals
I know, this one’s hard. But every heat session and every chemical treatment adds more damage to cuticles that are already weak. Try spacing these out more or just lower the heat setting.
Protect Your Hair — Even While You Sleep.
Silk or satin pillowcase or wrapping your hair at night, cuts down on friction a lot. Noticed less frizz within a few weeks.
Products Worth Trying
You don’t need a hundred products. Just a few good ones:
- Leave in conditioners with glycerin or aloe vera to pull in moisture
- Sealing oils like jojoba, argan or castor oil
- Butters like shea or mango butter, especially if you live somewhere dry
- Protein masks, but used occasionally, not every week
- Heat protectant every single time you use heat tools, no skipping
Small tip: apply products on damp hair, not fully wet or fully dry. Damp hair soaks things in more evenly.
Mistakes I Made
Honestly this list is my confession.
- Skipping the sealing step and wondering why my hair dried out in an hour
- Using way too much protein because I thought “more is better”
- Rinsing with hot water and undoing all my hard work
- Brushing dry hair and causing extra breakage
- Skipping heat protectant for “just a quick touch-up”
- Expecting results overnight instead of giving it a few weeks
Patience is really the whole point here. Nothing about hair care is instant, especially with high porosity hair.
My Honest Opinion
Not gonna lie high porosity hair used to feel like a losing fight. I tried so many “works for all hair types” products and none of them actually worked for me. Kind of annoying honestly.
Once I understood what was actually going on with my cuticle, everything got easier. My routine got simpler, not more complicated.
It is not about buying more products. It is about understanding what your hair need and working with it instead of against it.
One Last Thing
If your hair never seems to cooperate. It’s not you doing something wrong. High porosity hair works differently and once you learn its rules caring for it gets a lot easier. Be patient with it. Stay consistent and it’ll get there.
FAQ’s
Can high porosity hair ever go back to normal?
You can definitely improve how your hair behaves, consistent care, protein treatments, cutting back on heat and chemical damage all help. But if the porosity’s genetic, that part usually stays the same. Damage-related porosity can slowly get better as healthier new hair grows in over time.
Does high porosity always mean damaged hair?
Not always. Some people are just born with high porosity hair, so in that case it’s not damage at all. But if it’s from heat styling, chemicals, or too much sun, that usually does mean the cuticle’s taken some damage that needs fixing.
How often should I deep condition?
Most people with high porosity hair do fine deep conditioning about once a week though it depends on how dry or damaged your hair currently is. Better to watch how your hair’s feeling and adjust rather than sticking to some strict schedule.
Does the water test actually work?
The float test gives a rough idea of your porosity but it is not perfectly accurate. Stuff like product buildup can throw it off. Decent starting point but pay attention to other signs too like how fast your hair dries.
