High porosity curly hair routine: how to make moisture actually stay
High porosity hair drinks everything and keeps nothing. The fix is layering — moisture in, then seal it before it leaves.
The short version
- High porosity cuticles are raised or chipped — moisture rushes in and out.
- Deep condition weekly. Use richer creams and butters than you think.
- Layer: leave-in (liquid), then cream, then a sealing oil or gel.
- A little protein helps patch the gaps. Balance it with moisture.
High porosity is often — not always — the result of damage: bleach, colour, heat, sun, or years of rough handling. Some people are born with it. Either way, the goal is the same: get moisture in and stop it escaping.
Why coconut oil keeps coming up
A widely cited 2003 study in the Journal of Cosmetic Science compared coconut, sunflower and mineral oil on hair. Coconut oil was the only one that significantly reduced protein loss, for both damaged and undamaged hair, used before or after washing. The authors put this down to its structure: lauric acid is small and straight enough to get inside the hair shaft, while mineral oil and sunflower oil stay on the surface.
That makes a pre-wash coconut oil treatment a reasonable step for porous, damaged hair. (Some people find it makes their hair stiff — if that’s you, skip it.)
The wash day
- Optional pre-poo: a little coconut oil on the lengths 20–30 minutes before washing.
- Gentle cleanse — co-wash or a sulfate-free shampoo.
- Deep condition, 10 minutes. Every week. This is non-negotiable for high porosity.
- Rinse with cooler water to help the cuticle settle.
- Layer (LCO): Liquid leave-in → Cream → Oil (or gel) to seal.
- Dry gently — plop, then air dry or diffuse on low.
Wash day
- Co-wash & detanglewash
- Deep condition, 10 mincondition
- Leave-in while dampcondition
- Plop, then diffusestyle
- Bonnet before bedrest
Product weight guide
| Step | Good picks for high porosity |
|---|---|
| Leave-in | Creamy leave-ins with fatty alcohols and conditioning agents |
| Moisture | Curl creams with shea, mango or cocoa butter |
| Seal | Avocado, olive or castor oil; or a strong-hold gel |
| Protein (every 2–4 weeks) | Hydrolysed wheat, rice or silk protein treatment |
Protect what you have
High porosity hair is often fragile. Small changes add up:
- Satin bonnet or pillowcase to cut friction overnight.
- Heat protectant before any heat; keep the diffuser on low.
- Detangle only when wet and coated in conditioner, from the ends up.
- Regular trims to remove split ends before they travel. See trim schedule.
Watch the evening test
The classic high-porosity complaint is “great at 9am, dry and frizzy by 6pm.” The best measure of progress is how your hair feels at the end of the day. A quick evening check-in in Coil — the reminder can be set for 8pm — records exactly that, and the moisture score from the hair scan shows whether layering is helping.
Questions people ask
Can you fix high porosity hair?
Not permanently — damage to the cuticle doesn’t heal. But you can manage it well with deep conditioning, sealing and protein, and new growth comes in at your natural porosity.
Is coconut oil good for high porosity hair?
For many people, yes. Research found coconut oil reduces protein loss from hair, and it penetrates the shaft better than many other oils. If it makes your hair stiff, try a lighter oil instead.
What does LCO mean?
Liquid, Cream, Oil — a layering order for moisturising. Some people prefer LOC (Liquid, Oil, Cream). Try both and see which keeps your hair softer longer.
Sources
- Rele AS, Mohile RB. Effect of mineral oil, sunflower oil, and coconut oil on prevention of hair damage. J Cosmet Sci. 2003;54(2):175–92. PubMed 12715094