---
product_id: 47531221
title: "Cysteine Brazilian Hair Therapy Treatment, Formaldehyde Free, 9 oz."
brand: "cysteine"
price: "$19.47"
currency: USD
in_stock: false
url: https://www.desertcart.us/products/47531221-cysteine-brazilian-hair-therapy-treatment-formaldehyde-free-9-oz
store_origin: US
region: United States of America
---

# Natural ingredients Hydrating formula Formaldehyde-free Cysteine Brazilian Hair Therapy Treatment, Formaldehyde Free, 9 oz.

**Brand:** cysteine
**Price:** $19.47
**Availability:** ❌ Out of Stock

## Summary

> ✨ Unlock Your Hair's Potential! ✨

## Quick Answers

- **What is this?** Cysteine Brazilian Hair Therapy Treatment, Formaldehyde Free, 9 oz. by cysteine
- **How much does it cost?** $19.47 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/47531221-cysteine-brazilian-hair-therapy-treatment-formaldehyde-free-9-oz)

## Best For

- cysteine enthusiasts

## Why This Product

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

## Key Features

- • **Eco-Conscious Choice:** Feel good about using a product that's kind to the planet.
- • **Gentle Yet Effective:** Strengthens hair without harsh chemicals.
- • **Long-Lasting Results:** Enjoy smooth hair for weeks on end.
- • **Transform Your Tresses:** Experience the power of Cysteine for sleek, shiny hair.
- • **Safe for All Hair Types:** Perfect for every hair texture and condition.

## Overview

The Cysteine Brazilian Hair Therapy Treatment is a 9 oz. hair straightening solution that utilizes the naturally occurring amino acid Cysteine to straighten and strengthen hair without harmful substances. This formaldehyde-free treatment is designed for all hair types, providing a safe and effective way to achieve smooth, healthy-looking hair.

## Description

Cysteine hair therapy and Cysteine hair strengthening system are the modern forms of hair straightening treatments. These treatment uses the naturally occurring essential amino acid Cysteine that is naturally absorbent and has no harmful substances to straighten and strengthen your hair. Cysteine hair treatment is one of the safest in the market. Cysteine treatment is semi-permanent and lasts for about three months. Cysteine hair treatment is a special hair treatment for all types of hair to repair and condition all damaged or eliminating frizz. It will help decrease your hair's volume and will add shine and silkiness.Application:1. Wash the hair with Cysteine clarifying shampoo 2 to 3times, blow the hair up to 100% dry.2. Divide the hair into small sections and apply Cysteine hair therapy with brush evenly. Let the product act for 30 to 40minutes, remove about 70% with water and stile your hair as usual. Curly hair still curly but if you want straight hair after blow dry the hair, flat iron the hair section by section about 4 to 6 times. Ingredients: Water, amino acids, alcohol, amodimethicone, cetrimonium chloride, trideceth-10, cyclopentasiloxane, mineral oil, glycerin, soy protein, silk protein, fruit extract, formaldehyde, hydroxyethyl cellulose, stearamidopropylchloride and dimethylamine, Cysteine, edta.

## Features

- Cysteine hair therapy and hair strengthening system is the modern form of hair
- Straightening treatments, these treatment uses the naturally occurring essential amino acid Cysteine
- That is naturally absorbent and has no harmful substances to straighten and strengthen your hair
- Cysteine hair treatment is one of the safest in the market

## Product Details

- **Brand:** Cysteine
- **Hair Type:** All, Damaged, Straight
- **Item Weight:** 1.5 Pounds
- **Material Feature:** Natural
- **Manufacturer:** GEMS STYLE

## Images

![Cysteine Brazilian Hair Therapy Treatment, Formaldehyde Free, 9 oz. - Image 1](https://m.media-amazon.com/images/I/810fF-ueKpL.jpg)

## Questions & Answers

**Q: How long after you have a product can you Wash hair?**
A: I had a reaction to the product. I applied the product as directed and was prepare to leave it in, as instructed, however my head started to burn and I had to wash it out after a minute or less. This reaction, apparently, is rare as I could not find anyone else anywhere who had had the same issue. My advise, if you chose this product, (or any other chemical hair product) is to test it before application. Now to your question.... I believe you can wash your hair the next day. You can even dye your hair the same day. It is not like Keratin where you must wait. It is a mild product and will not give the same pin strength results as Keratin. However it is a healthier choice. I had an allergic reaction, I am sorry to say. I really was looking forward to the results. It could happen with any product. Always do a patch test first.

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**Shop now:** [https://www.desertcart.us/products/47531221-cysteine-brazilian-hair-therapy-treatment-formaldehyde-free-9-oz](https://www.desertcart.us/products/47531221-cysteine-brazilian-hair-therapy-treatment-formaldehyde-free-9-oz)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-08*