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 We Upgraded Our Gray Hiding Treatment (And ...

Discover our upgraded PPD-free Gray Hiding Treatment—a gentler way to blend or cover grey hair without ammonia, harsh odors, or complicated mixing.

Why We Upgraded Our Gray Hiding Treatment (And ...

Discover our upgraded PPD-free Gray Hiding Treatment—a gentler way to blend or cover grey hair without ammonia, harsh odors, or complicated mixing.

Why Grey Hair Looks Dull (And How to Restore Sh...

Grey hair can lose shine and look flat over time. Learn why grey hair becomes dull and how to restore healthy-looking radiance safely — especially for sensitive scalps.

Why Grey Hair Looks Dull (And How to Restore Sh...

Grey hair can lose shine and look flat over time. Learn why grey hair becomes dull and how to restore healthy-looking radiance safely — especially for sensitive scalps.

Grey Hair Porosity Explained: Why It Changes an...

Confused about why grey hair reacts differently to dye? Discover how porosity changes with age and what it means for colour absorption, fading, and scalp comfort.

Grey Hair Porosity Explained: Why It Changes an...

Confused about why grey hair reacts differently to dye? Discover how porosity changes with age and what it means for colour absorption, fading, and scalp comfort.

Why Grey Hair Won’t Take Dye: Causes and How to...

Struggling with resistant grey hair that won’t hold dye? Learn why grey hair rejects colour and how to improve coverage safely—especially for sensitive scalps.

Why Grey Hair Won’t Take Dye: Causes and How to...

Struggling with resistant grey hair that won’t hold dye? Learn why grey hair rejects colour and how to improve coverage safely—especially for sensitive scalps.

Why Grey Hair Becomes Coarse and How to Soften It

Wondering why grey hair feels coarse or wiry? Discover why texture changes happen and how to soften grey hair without irritating your scalp.

Why Grey Hair Becomes Coarse and How to Soften It

Wondering why grey hair feels coarse or wiry? Discover why texture changes happen and how to soften grey hair without irritating your scalp.

What Is PPD-Free Hair Dye and Is It Safe for Gr...

Curious about PPD-free hair dye? Discover how it works, whether it safely covers grey hair, and why it may reduce irritation for sensitive scalps.

What Is PPD-Free Hair Dye and Is It Safe for Gr...

Curious about PPD-free hair dye? Discover how it works, whether it safely covers grey hair, and why it may reduce irritation for sensitive scalps.