Discovery is Inochroma’s learning hub for people exploring grey hair care with sensitive scalps. If you’ve experienced irritation from traditional dyes, feel unsure about labels like PPD-free or ammonia-free, or want natural-looking results without harsh regrowth lines, this is where clarity starts.

Our guides explain how grey hair behaves differently, why some colour systems cause discomfort, and how approaches like grey blending, no-mix colour, and low-maintenance routines can reduce stress on the scalp. Each article is written to help you decide what works for you — before you commit to any routine.

Explore dermatologist-style patch tests, PPD-free and ammonia-free routines, and no-mix grey blending.

FAQ

Is PPD-free right for me? Start with a 24-hour patch test; if you’ve reacted to oxidative dyes before, PPD-free/no-mix systems can reduce irritation risk.

How often? Weekly touch-ups keep tone even while fade stays soft with no harsh demarcation lines.

Descubrimiento

Why Grey Hair Won’t Take Dye: Causes & Fixes (S...

Grey hair can resist colour for several reasons—from cuticle tightness to past chemical damage. Learn why coverage fails and how to fix it gently with PPD-free, ammonia-free routines.

Why Grey Hair Won’t Take Dye: Causes & Fixes (S...

Grey hair can resist colour for several reasons—from cuticle tightness to past chemical damage. Learn why coverage fails and how to fix it gently with PPD-free, ammonia-free routines.

Why Grey Hair Reacts Differently to Dye | Gentl...

Grey hair behaves differently due to cuticle tightness, reduced melanin, and scalp sensitivity. Learn why color resists, why irritation occurs, and how PPD-free, ammonia-free systems offer gentler, more predictable grey...

Why Grey Hair Reacts Differently to Dye | Gentl...

Grey hair behaves differently due to cuticle tightness, reduced melanin, and scalp sensitivity. Learn why color resists, why irritation occurs, and how PPD-free, ammonia-free systems offer gentler, more predictable grey...

Tinte para el cabello sin PPD en Canadá: Guía d...

PPD-free, ammonia-free, no-mix hair colour explained—how to read labels in Canada, choose low-odour options, and get natural-looking grey coverage with a sensitive-scalp routine.

Tinte para el cabello sin PPD en Canadá: Guía d...

PPD-free, ammonia-free, no-mix hair colour explained—how to read labels in Canada, choose low-odour options, and get natural-looking grey coverage with a sensitive-scalp routine.

Tinte para el cabello sin mezclar vs. con mezcl...

Una comparación técnica y fácil de entender entre la coloración sin mezclar y la coloración con mezcla en el momento del uso. Descubre la química, la comodidad del cuero cabelludo,...

Tinte para el cabello sin mezclar vs. con mezcl...

Una comparación técnica y fácil de entender entre la coloración sin mezclar y la coloración con mezcla en el momento del uso. Descubre la química, la comodidad del cuero cabelludo,...

Difuminado de canas vs. Cobertura total: Elige ...

Dos caminos diferentes para las canas: difuminado o cobertura total. Compara la comodidad, el mantenimiento y los resultados, además de consejos para cuero cabelludo sensible y opciones de tonos de...

Difuminado de canas vs. Cobertura total: Elige ...

Dos caminos diferentes para las canas: difuminado o cobertura total. Compara la comodidad, el mantenimiento y los resultados, además de consejos para cuero cabelludo sensible y opciones de tonos de...

Rutina de 10 minutos para canas: retoques natur...

Un plan paso a paso para unas canas suaves y naturales. Aprende retoques rápidos de raíz, mantenimiento semanal y control de decoloración con fórmulas de depósito único, sin mezcla.

Rutina de 10 minutos para canas: retoques natur...

Un plan paso a paso para unas canas suaves y naturales. Aprende retoques rápidos de raíz, mantenimiento semanal y control de decoloración con fórmulas de depósito único, sin mezcla.