Low Porosity Hair: How to Tell, What Works, and the Canadian Products Worth Buying

Low porosity hair has tightly packed cuticles that resist both water and product absorption. If your hair takes forever to get wet, sheds water like a duck in the shower, and never feels hydrated even after deep conditioning, you likely have low porosity hair. The fix is mostly technique — heat, humectants, and the right product pH.

How to confirm it at home

Clean-strand float test: drop a single clean shed strand into a glass of room-temperature water. Low porosity hair floats for 4+ minutes. High porosity sinks fast. Medium porosity sinks slowly.

Water-on-wet-hair test: wet your hair and watch how quickly water beads off vs absorbs. If it beads dramatically, you likely have low porosity.

Step 1: clarify monthly

Low porosity hair accumulates product residue fast because the cuticles don’t let product in — it sits on top. Use a clarifying shampoo (Ouidad Curl Shampoo, Briogeo Scalp Revival) once a month.

After clarifying, your deep conditioners will actually work for the next few washes.

Step 2: apply deep conditioner with heat

Warmth opens the cuticles. Apply your deep conditioner, put on a plastic cap, and either sit under a bonnet dryer for 15 minutes or wrap a warm towel around your head.

Good Canadian picks: Shea Moisture Jamaican Black Castor Oil Masque, Pacifica Power Treat, Kristin Ess Signature Hair Mask.

Step 3: humectants, not heavy oils

Your hair resists thick butters and coconut oil — they sit on top and look greasy. Reach for water-based leave-ins with glycerin and honey.

Avoid: shea butter, heavy coconut oil, beeswax-based products. Prefer: aloe-vera based leave-ins, honey-based conditioners, lightweight oils like argan and grapeseed.

Step 4: style on wet hair only

Low porosity hair dries into the shape you set it in while wet. Apply styling product while your hair is still sopping wet.

Layer a curl cream first, then a light gel if you need hold.

Canadian buying list (under $40 each)

Kinkistry Moisture Rich Conditioner (Canadian, Toronto-based).

Miss Jessie’s Multicultural Curls.

Shea Moisture JBCO Masque.

Cantu Argan Oil Sulfate-Free Shampoo.

Kristin Ess Leave-In Conditioner.

The bottom line

Low porosity hair is not hard to moisturize — it just needs the right approach. Clarify monthly, use warmth to open the cuticle, and stick to water-based humectants.

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