The scalp is universal. The hair shaft is not.
While a single shampoo can genuinely serve almost any scalp, a single conditioner cannot serve every hair type equally well. The hair shaft is structural keratin, not living skin. Its needs are determined by porosity, thickness, and damage — and these vary significantly between individuals.
Rice Water: conditioning from within
The mechanism: Inositol is small enough to penetrate the hair shaft rather than coating its surface. Research confirms it remains in the fibre after rinsing, reinforcing the internal keratin structure. The conditioning is structural, not cosmetic.
Who it serves: Fine, straight, normal, or oilier hair. Hair with a tighter cuticle structure that is easily weighed down by heavier conditioning agents.
Coconut: the exception among oils
The mechanism: Most plant oils sit on the surface of the hair shaft. Coconut oil’s high concentration of lauric acid — a medium-chain fatty acid — is small enough to penetrate the hair shaft. Published studies show coconut oil reduces protein loss from the hair fibre during washing more effectively than mineral oil or sunflower oil.
Who it serves: Thick, curly, dry, or chemically processed hair. Hair with a naturally more open cuticle that is prone to moisture loss.
| Feature | Rice Water Conditioner | Coconut Conditioner |
|---|---|---|
| Hero ingredient | Oryza Sativa Ferment Filtrate 5–10% | Cocos Nucifera Oil 5–10% |
| Mechanism | Inositol shaft penetration | Lauric acid lipid penetration |
| Best for | Fine, straight, normal, oilier | Thick, curly, dry, processed |
| Feel after rinse | Light, no build-up | Rich, soft |
If your hair tends to feel weighed down quickly — choose Rice Water. If your hair is thick, curly, dry, or colour-treated — choose Coconut. If unsure, start with Rice Water; it is easier to add richness than to remove build-up.