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.

News
Best Hair Dye for Grey Hair with Sensitive Scalp (PPD-Free Guide)

Best Hair Dye for Grey Hair with Sensitive Scal...

If you have grey hair and a sensitive scalp, choosing the right hair dye matters. This guide explains PPD-free, ammonia-free options and how to get natural-looking results safely.

Best Hair Dye for Grey Hair with Sensitive Scal...

If you have grey hair and a sensitive scalp, choosing the right hair dye matters. This guide explains PPD-free, ammonia-free options and how to get natural-looking results safely.

Why Hair Dye Works Differently Each Time | Gentle Grey Coverage Guide

Why Hair Dye Works Differently Each Time | Gent...

Hair dye can behave unpredictably—darker one time, lighter the next, or quick to fade. Learn why results vary and how gentle PPD-free, ammonia-free systems create more consistent, scalp-friendly grey coverage.

Why Hair Dye Works Differently Each Time | Gent...

Hair dye can behave unpredictably—darker one time, lighter the next, or quick to fade. Learn why results vary and how gentle PPD-free, ammonia-free systems create more consistent, scalp-friendly grey coverage.

Grey Hair Dye Checklist for Sensitive Scalps (PPD-Free)

Grey Hair Dye Checklist for Sensitive Scalps (P...

Use this quick checklist to choose PPD-free, ammonia-free, low-odour grey hair colour. Learn label tips, a 24-hour patch test, and when to pick grey blending vs full coverage for sensitive...

Grey Hair Dye Checklist for Sensitive Scalps (P...

Use this quick checklist to choose PPD-free, ammonia-free, low-odour grey hair colour. Learn label tips, a 24-hour patch test, and when to pick grey blending vs full coverage for sensitive...

How Inochroma’s No-Mix Formula Works

How Inochroma’s No-Mix Formula Works

Discover how Inochroma’s no-mix, PPD-free, ammonia-free pigments blend grey naturally—quick, low-odour root touch-ups for sensitive scalps with professional, believable results and optional booster for stubborn greys.

How Inochroma’s No-Mix Formula Works

Discover how Inochroma’s no-mix, PPD-free, ammonia-free pigments blend grey naturally—quick, low-odour root touch-ups for sensitive scalps with professional, believable results and optional booster for stubborn greys.

Gentle Hair Colour Options for Sensitive Scalps (PPD-Free)

Gentle Hair Colour Options for Sensitive Scalps...

A dermatologist-style guide to hair dye for sensitive scalps. Explore ammonia-free, PPD-free, no-mix options, patch testing, and natural grey blending.

Gentle Hair Colour Options for Sensitive Scalps...

A dermatologist-style guide to hair dye for sensitive scalps. Explore ammonia-free, PPD-free, no-mix options, patch testing, and natural grey blending.

How to cover grey hair naturally – ammonia-free, PPD-free, no-mix

How to Cover Gray Hair Naturally

A gentle guide to covering gray hair naturally. Compare ammonia-free, PPD-free, no-mix options; learn gray blending vs coverage, fast root touch-ups, shade picks, and patch-test tips for sensitive scalps.

How to Cover Gray Hair Naturally

A gentle guide to covering gray hair naturally. Compare ammonia-free, PPD-free, no-mix options; learn gray blending vs coverage, fast root touch-ups, shade picks, and patch-test tips for sensitive scalps.