---
product_id: 48521384
title: "Rainbow Research Henna Hair Color and Conditioner, Dark Brown, 4 Ounce"
brand: "rainbow research"
price: "¥4729"
currency: JPY
in_stock: true
reviews_count: 8
category: "Rainbow Research"
url: https://www.desertcart.jp/products/48521384-rainbow-research-henna-hair-color-and-conditioner-dark-brown-4
store_origin: JP
region: Japan
---

# Lasts 4-6 weeks with gradual fading Seals cuticle for enhanced shine & body 100% Organic, chemical-free purity Rainbow Research Henna Hair Color and Conditioner, Dark Brown, 4 Ounce

**Brand:** rainbow research
**Price:** ¥4729
**Availability:** ✅ In Stock

## Summary

> 🌈 Unlock your hair’s natural glow with pure, lasting color!

## Quick Answers

- **What is this?** Rainbow Research Henna Hair Color and Conditioner, Dark Brown, 4 Ounce by rainbow research
- **How much does it cost?** ¥4729 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/48521384-rainbow-research-henna-hair-color-and-conditioner-dark-brown-4)

## Best For

- rainbow research enthusiasts

## Why This Product

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

## Key Features

- • **Gentle on Scalp:** Mild, irritation-free formula perfect for all hair types and sensitive skin.
- • **Pure Botanical Power:** Experience vibrant dark brown color without a single chemical or preservative.
- • **Long-Lasting Radiance:** Enjoy a natural fade over 4-6 weeks that keeps your hair looking fresh and dynamic.
- • **Cuticle Smoothing Shine:** Smooths and seals each strand for salon-worthy gloss and fuller texture.
- • **Customizable Color Boost:** Mix with natural additives like lemon juice to deepen your shade and personalize your look.

## Overview

Rainbow Research Henna Hair Color and Conditioner in Dark Brown is a 100% organic, chemical-free powder that coats hair shafts to deliver rich, natural color while conditioning and adding shine. Designed for all hair types, it lasts 4-6 weeks with gradual fading and smooths the hair cuticle for enhanced texture and body. This product offers a gentle, scalp-friendly formula that can be customized with natural boosters for deeper hues.

## Description

Product description Adds shine, body, and conditioning to all hair colors and types. A mild formula that does not irritate the scalp or skin. Brings out your natural highlights. Made with Rainbow's Neutral (colorless) Henna.Rainbow Henna is 100% organic - no additives, chemicals, or pesticides. Rainbow Henna coats each hair shaft with color. Blends naturally. Fades gradually. Lasts 4-6 weeks. Smooths and seals the hair's cuticle for greater shine and body. Rainbow's custom-tailored recipes can be used for special effects, covering grey, and improving texture. Directions Apply to hair, leave on for a certain time, rinse off.

Review: Great quality - Awesome product! I love how shiny it makes my hair and it's a nice dark brown. Adding lemon juice to the mix before application makes it a lot darker too!
Review: Not for me!! - Complete waste of money and time, it turned my grey hairs green despite mixing with liquid coffee and acv. I watched several You tubers demonstrating this particular brand showing the best methods to cover greys without using indigo, they used coffee and vinegar. I Followed exactly and ended with disappointing results. I researched why henna turns grey hair green, top reasons where.. it's not pure may contain indigo or low quality processing. I don't feel I did anything wrong with the mixing and application, my hair has no chemicals on it I've not dyed it in months so based on the likely reasons for this green result I personally do not trust this particular brand.

## Features

- 100% Organic - No Chemicals or Preservatives Added
- Rainbow Henna coats each hair shaft with colour. Smoothes and seals the hair's cuticle for greater shine. Texturizes hair and gives it body. Blends naturally. Fades gradually. Lasts 4-6 weeks.
- Neutral Henna is a natural, colourless conditioner for all hair types and colours.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0014AWPN0 |
| Benefits | Long-lasting colour, nourishing |
| Best Sellers Rank | 116,101 in Beauty ( See Top 100 in Beauty ) 2,178 in Hair Conditioners |
| Brand | Rainbow Research |
| Brand Name | Rainbow Research |
| Colour | Dark Brown |
| Container Type | Jar |
| Country Of Origin | USA |
| Customer Reviews | 3.4 out of 5 stars 22 Reviews |
| Full Cure Time | 28 Days |
| Hair Color Permanence | Temporary |
| Hair Type | All |
| Hair type | All |
| Item Form | Powder |
| Item Weight | 113 Grams |
| Item form | Powder |
| Manufacturer | Rainbow Research |
| Manufacturer Part Number | 000518400064 |
| Material Features | Chemical Free |
| Model Number | 000518400064 |
| Number of Items | 1 |
| Package information | Jar |
| Product benefits | Long-lasting colour, nourishing |
| Recommended Uses For Product | Hair dyeing |
| Suitable Hair Colour | Dark Brown |
| UPC | 000518400033 |
| Unit Count | 113.3981 gram |

## Product Details

- **Brand:** Rainbow Research
- **Colour:** Dark Brown
- **Full cure time:** 28 Days
- **Hair type:** All
- **Item form:** Powder
- **Material feature:** Natural
- **Number of items:** 1
- **Package information:** Jar
- **Product benefits:** Long-lasting colour, nourishing
- **Unit count:** 113.3981 gram

## Images

![Rainbow Research Henna Hair Color and Conditioner, Dark Brown, 4 Ounce - Image 1](https://m.media-amazon.com/images/I/81BiYM2C1iL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great quality
*by M***E on 17 June 2025*

Awesome product! I love how shiny it makes my hair and it's a nice dark brown. Adding lemon juice to the mix before application makes it a lot darker too!

### ⭐ Not for me!!
*by K***A on 10 June 2025*

Complete waste of money and time, it turned my grey hairs green despite mixing with liquid coffee and acv. I watched several You tubers demonstrating this particular brand showing the best methods to cover greys without using indigo, they used coffee and vinegar. I Followed exactly and ended with disappointing results. I researched why henna turns grey hair green, top reasons where.. it's not pure may contain indigo or low quality processing. I don't feel I did anything wrong with the mixing and application, my hair has no chemicals on it I've not dyed it in months so based on the likely reasons for this green result I personally do not trust this particular brand.

### ⭐⭐⭐⭐⭐ Love, Love, Love This Product!
*by F***A on 22 January 2023*

This has got to be the best henna products I've used in years and years....my usual product being from LUSH, which I also loved but not as much as this product. I followed all the instructions (I don't normally!), made sure my hair was free of products by washing it first, mixed the henna to a paste using hot water, a bamboo spoon and a plastic bowl applied the henna to damp, tangle free hair. Wrapped it in cling film, wrapped a turban over that and left it for 1.5 hours. Great results covering up my sprinkle of grey, very happy hair.....so sorry I didn't take a before and after pic for my own benefit.

## Frequently Bought Together

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-24*