Porous Hair

Shop products for porous hair in South Africa. Protein-rich masks, deep conditioners, moisture-sealing treatments, and bonding oils for high and low porosity hair from Olaplex, K18, Kérastase Résistance, Moroccanoil, Pureology, Brasil Cacau, and more. 100% authentic, sourced from authorised distributors. Free delivery on orders over R390 across South Africa.

What Is Hair Porosity

Porosity measures how easily hair absorbs and holds moisture. Healthy hair has a tightly sealed cuticle that absorbs the right amount of water and retains it. High porosity hair has a raised, damaged cuticle — it absorbs water quickly but loses it just as fast, leading to dryness, frizz, breakage, and tangling. Causes: bleach, colour, perm, heat damage, mechanical stress. Low porosity hair has a tightly closed cuticle that resists water absorption — products sit on the surface, masks don't penetrate, and hair feels coated. Causes: genetic, often paired with fine or healthy virgin hair. Both extremes need targeted care.

Porous Hair Product Range

High Porosity — Protein and Sealing — high porosity hair needs protein to fill gaps in the cuticle and sealing actives to lock moisture in. Top picks: Olaplex No.3 Hair Perfector, K18 Leave-In Molecular Repair Mask, Kérastase Résistance Masque Force Architecte, Pureology Strength Cure Masque, and Redken Acidic Bonding Concentrate.

High Porosity — Heavy Moisture — to compensate for fast moisture loss. Olaplex No.8 Bond Intense Moisture Mask, Moroccanoil Intense Hydrating Mask, Kérastase Nutritive Masque Magistral, and Brasil Cacau Hydration Mask.

Low Porosity — Penetrating Lightweight Formulas — products that penetrate the resistant cuticle without sitting on the surface. Kevin Murphy Hydrate-Me Wash, Moroccanoil Hydrating Mist (light formula), Pureology Hydrate Sheer Conditioner, and steam-style heated treatments.

Sealing Oils and Serums — finishing products that seal moisture into the cuticle. Moroccanoil Treatment (lightweight for low porosity, layered heavier for high porosity), Olaplex No.7 Bonding Oil, and Kérastase Elixir Ultime.

How to Test Hair Porosity

The simplest test: drop a clean strand of hair into a glass of room-temperature water. If it floats on top for several minutes — low porosity (cuticle is tightly sealed, water can't enter). If it sinks slowly — normal porosity. If it sinks quickly — high porosity (cuticle is raised, water enters fast). For most people who've coloured, bleached, or heat-styled regularly, the answer is high porosity.

How to Care for High Porosity Hair

1. Protein treatment weekly — Olaplex No.3 or K18 fills the cuticle gaps and reduces moisture loss.
2. Deep moisturising mask weekly — alternate with protein. Kérastase Nutritive Magistral or Olaplex No.8.
3. Sulfate-free shampoo — sulfates further raise the cuticle and worsen porosity.
4. Leave-in conditioner daily — to keep moisture levels topped up.
5. Seal with oil — finish with Moroccanoil or Olaplex No.7 to trap moisture.
6. Cool rinses — finish washes with cool water to close the cuticle.

How to Care for Low Porosity Hair

1. Use heat with treatments — warm towel, steamer, or heated cap helps open the cuticle so products can penetrate.
2. Lightweight formulas — avoid heavy butters and oils that sit on the surface. Choose water-based leave-ins.
3. Clarify monthly — low porosity hair builds up product residue easily. Monthly clarifying wash prevents this.
4. Apply products to wet hair — water-soluble formulas absorb better on wet, warm hair than dry hair.
5. Limit protein — low porosity hair has intact cuticle and rarely needs heavy protein. Excess protein causes stiffness and breakage.

Frequently Asked Questions

Can hair porosity change? Yes — porosity is influenced by both genetics and damage. You can't change your underlying genetic porosity easily, but you can increase or decrease porosity through damage and care. Bleach and chemical processing increase porosity. Bond-building treatments and consistent moisture care reduce damage-related porosity over time.

What's the best product for high porosity hair? Olaplex No.3 and K18 are the two most universally effective treatments — both fill cuticle gaps with bond-rebuilding actives. Pair with a moisturising mask like Olaplex No.8 or Kérastase Nutritive Magistral weekly.

Why does low porosity hair feel coated? Because the cuticle resists product penetration, conditioners and leave-ins sit on the surface instead of absorbing in. Choose lightweight, water-based formulas. Apply to wet hair with gentle heat (warm towel) to encourage penetration.

Is curly hair always high porosity? No — porosity and curl pattern are separate properties. Many curly-haired people have high porosity from chemical or mechanical damage (curl pattern is fragile), but virgin coily hair can be low porosity. Test your specific porosity rather than assuming based on curl pattern.

Why Buy Porosity-Specific Products from Partners Hair Design?

Partners Hair Design is an authorised stockist of every protein-repair and moisture brand we carry — Olaplex, K18, Kérastase, Moroccanoil, Pureology, Brasil Cacau, Kevin Murphy, and more. All products are 100% authentic, sourced directly from official South African distributors. Free delivery on orders over R390 across South Africa. For complex porosity issues, our stylists at Cape Town salons can recommend porosity testing and targeted treatment routines.