12 High Porosity Hair Care Rules That Actually Work

High porosity hair has a raised, gappy cuticle, which means moisture gets in fast and leaves just as fast. The fix isn’t more product, it’s the right product applied in the right order, sealed properly.

These are the twelve rules I walk clients through.

Seal With the LOC Method, Not LCO

Leave-in, oil, cream, in that order. High porosity hair needs the cream on top to physically seal the cuticle shut after the leave-in and oil have done their job.

[IMAGE 1] LOC method, high porosity hair care · Alt: high porosity hair care rules · Pin title: “The High Porosity Hair Rule Nobody Tells You”
[IMAGE 2] Sealing cream, high porosity hair care

Reach for Butters and Heavier Oils

Where low porosity hair drowns under heavy products, high porosity hair actually needs them. Shea butter and castor oil hold moisture in far better than light, fast-absorbing oils here.

[IMAGE 3] Shea butter, high porosity hair care
[IMAGE 4] Heavy sealing oil, high porosity hair

Rinse With Cool Water to Help the Cuticle Lie Flat

A cool water rinse at the end of your wash physically helps the raised cuticle close back down, trapping in whatever moisture you just worked to add.

[IMAGE 5] Cool water rinse, high porosity hair care
[IMAGE 6] Cuticle sealing rinse, high porosity hair

Do Regular Protein Treatments

Unlike low porosity hair, high porosity strands genuinely benefit from consistent protein, it fills in the gaps in the cuticle and strengthens what’s become fragile.

[IMAGE 7] Protein treatment, high porosity hair care
[IMAGE 8] Strengthening mask, high porosity hair

Avoid Over-Washing, It Strips Faster Than You’d Think

High porosity hair loses its natural oils quickly, so washing too often just accelerates the dryness. Stretch your wash days and lean on co-washing in between.

[IMAGE 9] Co-washing, high porosity hair care
[IMAGE 10] Stretched wash days, high porosity hair

Use Leave-Ins With Humectants Cautiously in Humidity

Humectants pull moisture from the air, which is great in dry conditions but can leave already-porous hair feeling overloaded and frizzy on humid days. Adjust with the weather, not on autopilot.

[IMAGE 11] Humidity-aware leave-in, high porosity hair care
[IMAGE 12] Weather adjusted routine, high porosity hair

Complete the Routine: More Hair Care Ideas

Not sure this is your porosity type? Compare it against 12 low porosity hair care rules. Which rule surprised you the most?