If you have low porosity hair, you already know the struggle: products sit on top, water beads off the strands, and no matter how hydrating your routine is supposed to be, your hair still feels dry.
The problem isn’t that your hair “doesn’t like moisture.”
It’s that your cuticle is too tight to let moisture in.
This is exactly why the Sandwich Method for Low Porosity Hair works so well. It layers hydration strategically, introducing moisture when the hair is most receptive, feeding it deeply, and then sealing it in. Think of it like building the perfect sandwich: every layer has a purpose, and the order matters.
Below is the full routine with one recommended product per step, plus clear explanations for why each step works for low-po hair.
Step 1: The Reset (Top Slice of the Sandwich)
Recommended product: Dr Forhair Folligen Scaler
Every great sandwich starts with a clean base.
Every great low-porosity routine starts with a clean slate.
Low-porosity hair is prone to buildup, silicones, oils, conditioners, and minerals form a water-resistant shell. If you don’t remove it, nothing can penetrate the hair shaft.
Why this matters:
A weekly exfoliating scalp treatment breaks apart the barrier that blocks moisture, while warm water slightly lifts the cuticle, creating the ideal entry point for hydration.
Step 2: The Gentle Cleanse (Foundation Layer)
Recommended product: Pyunkang Yul Low pH Shampoo
A sandwich falls apart if the base layers are too heavy.
Similarly, low-porosity hair becomes dehydrated or greasy if shampoo is too harsh.
Low-po hair thrives on gentle, low-pH cleansers that clean without causing the cuticle to slam shut.
Why this matters:
The right shampoo removes oil at the roots while keeping the strands receptive to moisture. Let the foam glide down the hair, no scrubbing, no friction.
Step 3: Flash Penetration (The Moisture Injection Layer)
Recommended product: Moremo Miracle 10
This is the moment when the sandwich gets its flavour, your “moisture boost.”
After shampooing, your hair is warm and water-softened. This short window is the only time low-porosity cuticles temporarily open. A fast-absorbing liquid treatment takes advantage of that.
Why this matters:
Moremo Miracle 10 gently heats upon application, increasing molecular movement so amino acids can slip inside the hair shaft. It’s science working in your favour, absorption before the cuticle cools and tightens again.
Step 4: Deep Feed (The Protein & Moisture Core)
Recommended product: Lador Hydro LPP Treatment
This is the “main filling” of the Sandwich Method, the nourishing centre that makes the whole structure worthwhile.
Low-porosity hair struggles to absorb regular conditioners because the molecules are too large. But with heat, occlusion, and small-chain polypeptides, deep penetration becomes possible.
Why this matters:
Covering the hair with a plastic cap traps heat and moisture (like a mini greenhouse), keeping the cuticle lifted long enough for LPP proteins and hydrators to reach the cortex.
This is where long-term strength and softness are built.
Step 5: Weightless Seal (The Bottom Layer Holding Moisture In)
Recommended product: Unove No-Wash Water Ampoule
After saturating the hair with hydration, the next step is sealing it lightly. Low-porosity hair hates heavy creams and oils, which simply sit on the surface and create buildup.
You need a breathable, feather-light barrier.
Why this matters:
The Unove Water Ampoule fills micro-gaps in the cuticle with trehalose and proteins, locking in hydration while keeping the strands bouncy, not coated.
Step 6: The Final Lock (The Finishing Drizzle)
Recommended product: Mise En Scène Perfect Watery Serum
Every perfect sandwich has a finishing touch, the drizzle that brings everything together.
This last layer stops humidity from creeping in and prevents moisture from evaporating.
Why this matters:
A lightweight serum forms a flexible hydrophobic topcoat. It protects the internal moisture you worked so hard to push in, keeping your hair smooth, shiny, and soft for days.
Now that you know how to lock moisture in the right way, the next step is choosing products that actually work with low-porosity hair — not against it. Click here to explore our Low Porosity Hair Collection and find lightweight, buildup-safe options designed to hydrate, seal, and protect without weighing your hair down.
