Hydrolyzed quinoa protein

Quinoa protein broken into small fragments that can bind to damaged areas of the cuticle, temporarily filling gaps and reducing breakage.

INCI name
Hydrolyzed Quinoa
Origin
Plant-derived
Role
Film-forming protein for strength
Best for
High porosity · Bleached or heat-damaged hair · Hair that stretches and snaps when wet
Watch out
Too much protein, too often, can make hair feel stiff. Alternate with moisture-focused treatments.

What it does

Hydrolysis chops a plant protein into peptides small enough to interact with the hair surface. Those peptides deposit in the porous, damaged regions of the cuticle and cortex edge, which is why protein treatments make high-porosity hair feel stronger and less "mushy" when wet. Quinoa has a full amino-acid profile, hence its popularity over wheat for this job.

The effect is temporary and washes out over a few shampoos, so it is a maintenance step rather than a repair. Hair with an intact cuticle has nowhere for the peptides to go, which is why low-porosity hair often reports stiffness from protein-heavy products.

How we use it

In strengthening masks and leave-ins for high-porosity and chemically treated profiles, rotated with moisture treatments. The scan reduces or removes it for low-porosity hair.

Helps with

Often paired with

Sources

Educational only, not medical advice. Persistent scalp irritation, sudden hair loss or unexplained breakage warrant a visit to a dermatologist. Written by Cosmixxology R&D.