Gray Hiding Treatment —  New Formula (Multi-Use)

A gentle, PPD-free and ammonia-free system that blends or fully covers gray hair without strong odours or mixing. Visible results in ~20 minutes, scalp-friendly, and designed for ongoing gray coverage at home.

Why You’ll Love It

• Sensitive-Scalp Safe – PPD-free & Ammonia-free, odourless experience.
• No-Mix, No-Mess – Simple at-home routine in about 20 minutes.
• Flexible Results – Gradual gray blending or complete coverage—you choose.
• Long-Lasting – Natural-looking colour typically lasts 2–4 weeks on grays.
• Nourishing Finish – Hair feels soft, smooth, and manageable after each use.
• Unisex – Works for short/long hair, for both men and women.

Best for: Ongoing gray maintenance and root touch-ups; ideal if you already love the Trial Size and want a larger, multi-use format.

What’s Inside

* Gray Hiding Treatment – multi-use bottle for repeated applications.

* Actual number of applications varies by hair length, density, and usage (all-over vs. root touch-ups).

How It Works

Inochroma’s melanin-precursor technology builds colour within the hair fibre, delivering natural-looking gray coverage without harsh chemicals or strong odours. Use repeatedly to blend salt-and-pepper or go for richer, fuller coverage.

How to Use

First, put on gloves.

Next, apply treatment to the area, leave 10-20 mins.

Finally, rinse thoroughly, then shampoo and condition as usual.

Pro tips

• Very light gray often benefits from 2–3 uses to reach the target shade.
• Maintain tone every 2–4 weeks or as regrowth appears.
• For best softness and colour stability, pair with Inochroma Cleansing Shampoo and the Gray Hiding Shampoo & Conditioner Set.

Results & Routine

• 1st application: Natural softness + visible blending.
• 1–2 weeks: Build to your preferred coverage with repeat uses.
• Ongoing: Touch up roots; adjust Booster placement for stubborn areas.

Ingredients (INCI)

Treatment: Water (Aqua), Cetyl Alcohol, Propylene Glycol, Ceteareth-25, Amodimethicone, Cyclopentasiloxane, Cetrimonium Chloride,Polydihydroxyindole, 5,6-dihydroxyindole, 5,6-dihydroxyindoline, MEA.

Free from: PPD, Ammonia. Odourless.

Always perform a patch test 24–48 hours before first use.

FAQs

Q: How is this different from traditional dye?
A: It uses melanin precursors to build colour gradually inside the hair fibre—no harsh chemicals, no strong odours, and a gentler scalp experience.

Q: How many uses in the Full Size?
A: It’s a multi-use format. The exact number depends on hair length/density and whether you treat roots or full lengths.

Q: Is it compatible with previously coloured hair?
A: Yes. It’s PPD-free & Ammonia-free and generally compatible with most colour-treated hair. Always patch-test first.

Q: Will it stain skin?
A: Minimal when used as directed. Apply carefully around the hairline and wipe any residue promptly.

Cross-Sell & Learn

• Prefer a test run first? Try the Travel Size
• Keep colour fresh: Cleansing Shampoo
• Learn pro tips in our Discovery Blog

Learn More About Inochroma’s Formula Features

This product is part of Inochroma’s gray coverage and care routine, designed for customers who prefer a simpler, low-odour alternative to traditional hair dye systems.

• PPD-Free Hair Dye
• Ammonia-Free Gray Hair Dye
• Gray Hair Dye for Sensitive Scalp
• No-Mix / One-Step Routine

If you are using Inochroma for the first time, we recommend performing a patch test before full application and following the directions on each product page.

New to grey blending? Learn more about grey hair, colour options, and gradual grey coverage in our Grey Hair Guide.

Free Patch Test Kit Now Available

For Canada & U.S. Customers

Not sure if Inochroma is right for your sensitive scalp?

Request a complimentary Patch Test Kit before your first purchase.