---
product_id: 116787531
title: "(3N Natural Dark Brown) 4 fl. oz. (120 mL) Heat Activated Healthier Permanent Hair Dye with Certified Organic Ingredients, Ammonia Free, Vegan Friendly, 100% Gray Coverage"
brand: "onc naturalcolors"
price: "€ 81.22"
currency: EUR
in_stock: true
reviews_count: 3
url: https://www.desertcart.fi/products/116787531-3n-natural-dark-brown-4-fl-oz-120-ml-heat
store_origin: FI
region: Finland
---

# Organic Ingredients Heat Activated 100% Gray Coverage (3N Natural Dark Brown) 4 fl. oz. (120 mL) Heat Activated Healthier Permanent Hair Dye with Certified Organic Ingredients, Ammonia Free, Vegan Friendly, 100% Gray Coverage

**Brand:** onc naturalcolors
**Price:** € 81.22
**Availability:** ✅ In Stock

## Summary

> 🌟 Transform Your Tresses Naturally!

## Quick Answers

- **What is this?** (3N Natural Dark Brown) 4 fl. oz. (120 mL) Heat Activated Healthier Permanent Hair Dye with Certified Organic Ingredients, Ammonia Free, Vegan Friendly, 100% Gray Coverage by onc naturalcolors
- **How much does it cost?** € 81.22 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/116787531-3n-natural-dark-brown-4-fl-oz-120-ml-heat)

## Best For

- onc naturalcolors enthusiasts

## Why This Product

- Trusted onc naturalcolors brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Organic Goodness:** Infused with argan oil and aloe for silky softness.
- • **No Harsh Chemicals:** Ammonia-free formula for gentle care.
- • **Cruelty-Free & Vegan:** Make a clean choice for you and the planet.
- • **Salon Quality at Home:** Achieve professional results without the salon price.
- • **Natural Heat Activation:** Harness your body heat for vibrant color!

## Overview

The 3N Natural Dark Brown Heat Activated Hair Dye is a 4 fl. oz. permanent hair color solution that utilizes your body heat to deliver vibrant, long-lasting color. With certified organic ingredients and no harsh chemicals, it provides 100% gray coverage while nourishing your hair for a silky, shiny finish. Perfect for the eco-conscious consumer seeking salon-quality results at home.

## Description

(3N Natural Dark Brown) 4 fl. oz. (120 mL) Heat Activated Healthier Permanent Hair Dye with Certified Organic Ingredients, Ammonia Free, Vegan Friendly, 100% Gray Coverage

## Features

- Heat-activated healthier hair color. ONC NaturalColors works by trapping the heat released from the top of your head. Use the thermal heat cap or a hair dryer. It uses your body heat instead of harsh chemicals to open your hair cuticles. This allows color into your hair. This method is more natural
- Enriched with certified organic ingredients like argan oil, aloe vera, orange extracts, chamomile, coconut oil and vitamins, to make your hair silky, shiny and soft
- No ammonia, parabens, resorcinol, sulfate, gluten, so no harsh chemicals. Formulated to gently nourish and protect your hair. Gentle on hair and scalp
- 100% gray coverage even on stubborn grays. Salon quality hair color results at home for long-lasting radiance from root-to-tip
- Cruelty-Free and Vegan. It is time to make the clean choice

## Product Details

- **Color:** 3N Natural Dark Brown
- **Package Information:** Box
- **Product Benefits:** Hair Coloring
- **Brand:** ONC NATURALCOLORS
- **Item Form:** Gel

## Images

![(3N Natural Dark Brown) 4 fl. oz. (120 mL) Heat Activated Healthier Permanent Hair Dye with Certified Organic Ingredients, Ammonia Free, Vegan Friendly, 100% Gray Coverage - Image 1](https://m.media-amazon.com/images/I/71T5Hk6CVDL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: How long does the color last**
A: As your hair grows out, your original hair color shows on those roots...but the ONC Color lasts for about 10 weeks at least.

**Q: Does it contain PPD**
A: It contains Phenylenediamine which is an alternative name for PPD.

**Q: Is this color PPD free?**
A: Yes this is PPD free and it is natural as it gets. The reason its much healthier than any other color in the market is because its pH value is around 8.5compared to 10.5 - 11.5  with all the other colors ( a difference from 8.5 to 10.5 is not 2 but 20 in pH terms) which means they don't have the toxic, harsh chemicals in the color. Thats why this color needs heat to open the cuticles to get color pigments into the hair. All the other colors do not use heat because they have the harsh chemicals and therefore they have a high pH value. To keep the pH value you need quality ingredients and that why its more expensive. Also there is 2-methylresorcinol which is hydrolyzed resorcinol (much more expensive) not direct resorcinol. Google the two and see the difference. Its like bad cholesterol and good cholesterol or bacteria good for the stomach and ones bad for the stomach. The good ones always cost a lot more...

**Q: P-phelylendediamine is listed in ingredients, thus it does have ppd, right?**
A: I'd say Yes if it's listed in the ingredients. Unfortunately, I do not have the box in hand.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works fine for guys. Lasting color. Easy to use.
*by M***T on May 25, 2022*

My wife is younger and doesn't prefer to walk around with a gray-haired husband. So, OK, I'll dye my hair. Surprise benefit: I look in the mirror and say, "Oh, yes, THERE I am!" Traditional products work fine, but over time I've gotten concerned about the chemicals. Other "natural" products don't last at all (and when they fade do things like turn your hair sort of purple), but this lasts a long time and fades gracefully. Strongly recommended.I'm a guy. A lot of this girl stuff, like dying one's hair seems complicated and is completely not of interest to me--and I'm guessing many other guys as well. The instructions for this dye are in that vein too, with commands to be savvy about, e.g. SLSes, parabens, pH values, "regrowth hair," thermal heat caps, permanents, bleaching, henna, and so on. Then you are supposed to make a one-inch color-test patch. There are warnings not to use heat if you are a man (our hair is different?). If you have "coarse hair" you are supposed to follow alternate instructions on pages 6 and 7. Then it gets worse: you are supposed to dye your hair but leave one inch un-dyed near the roots... What the F...? OK those are the instructions for the girls.Here are the instructions for guys: Mix the dye. Put it on your hair. Leave it for about 35 minutes (or read how long). Rub it in in the shower for two minutes. Shampoo. You'll be fine.It lasts quite a while on hair (6 weeks?), and when it fades it does so in a reasonable way. It does not last as long on my close-cut grunge/model look beard because the gray grows in. But the salt-and-pepper look is OK along the way.Touch-ups are easy, and so far I've been able to use the leftovers weeks later on my beard with no problems.Summary: Easy to use if you're a guy. Advertised as being without ammonia, resorcinol, parabens, silicone and nonoxynol. But it DOES contain paraphenylenediamine (PPD) according to the label. Lasts well and fades gracefully. Need repeat applications on beards.

### ⭐⭐⭐⭐⭐ I'm in love with my hair!
*by P***S on August 4, 2018*

I've been coloring my hair (based on my whims) since I was 15, and I've had a few hair dressers give up because my hair is baby fine, very porous, grabs too much color in some areas and slides off almost immediately and always ends up too red or green or something. So I've mostly done my own hair coloring so I have only myself to blame. I'm 70 now, and due to a catastrophic illness, my hair went silver within the space of a year. It's a gorgeous silver, the kind younger girls are paying big bucks to achieve, but when a senior lady (who happens to be in excellent shape now) has grey hair, that's all other people see and immediately think old, decrepit lady. I know; I'm not supposed to care about others' opinions, especially strangers, but this is where I am in my life right now.....So after much deliberation and a ton of research about toxic vs healthy ingredients, I decided to try this one. I did a little test strip and thought I could live with that, but the full hair color turned out a hundred times better! It's a rich color with lots of variations giving it a natural look. It was a tad darker than I'd wanted, so the first time I shampooed, I used a charcoal detox shampoo, and it washed out just enough color. Now I'm using purple shampoo and conditioner to keep the reds out. It's only been about a week, so I cannot speak to how it will continue to wear, but I'm ordering the next lighter N shade to try next, as I'm sure the gleaming silver roots will shine when this one grows off a quarter inch or so, and lighter looks better on me, anyway. I'm naturally light brunette. Thanks for letting me play with my hair color again without worrying about the chemicals involved. I left it on for the time recommended and used my heat cap instead of a hair dryer. The heat makes all the difference. It was a nice experience, no stinging or strong odors, not messy. My hair is quite short, and it was enough color to cover adequately, but if you have longer hair, I would recommend buying an extra one.

### ⭐⭐⭐⭐ Covers white/gray- intense dark red color.
*by M***N on March 27, 2025*

I was actually very impressed with this Irish Red hair color! As you can see in the picture, it’s pretty bright but also fairly close to the model. I am naturally about 35% white and the rest is a level 7/8 strawberry blonde. The white was covered almost completely with this product. I was using Madison Reed but the ethanolamine was irritating my scalp and I was losing a lot of hair. The ONC did not bother me at all. The process is more tedious but the results are worth it. Use a heat cap as you will get an even color that way.The reason I have given this 4 stars is that it’s darker than I’d like and really more of a level 6. I’ll have to mix it with 8n next time to see if I can get it to come out lighter. It is pretty though. This picture is after I washed my hair a few days after coloring it. I highly recommend this for a much less harmful box dye.

## Frequently Bought Together

- ONC NATURALCOLORS (3N Natural Dark Brown) 4 fl. oz. (120 mL) Heat Activated Healthier Permanent Hair Dye with Certified Organic Ingredients, Ammonia Free, Vegan Friendly, 100% Gray Coverage
- Herbatint Permanent Hair Dye For Women - 3N Dark Chestnut - For Up To 100% Gray Coverage of Resistant Gray Hair - Ammonia-Free, Alcohol-Free & Vegan - Salon Influenced Hair color 5.75 fl oz
- Naturtint 4N Natural Chestnut Permanent Hair Color (Pack of 6), Ammonia Free, Vegan, Cruelty Free, up to 100% Gray Coverage, Long Lasting Results (Packaging may vary)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-04*