---
product_id: 34989690
title: "Keratin Hair-Straightening Formaldehyde-Free w/ L-Cysteine Treatment 6-Duos 16oz / 500ml"
brand: "keratin usa"
price: "16039 kr"
currency: DKK
in_stock: true
category: "Misc."
url: https://www.desertcart.dk/products/34989690-keratin-hair-straightening-formaldehyde-free-w-l-cysteine-treatment-6
store_origin: DK
region: Denmark
---

# Keratin Hair-Straightening Formaldehyde-Free w/ L-Cysteine Treatment 6-Duos 16oz / 500ml

**Brand:** keratin usa
**Price:** 16039 kr
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Keratin Hair-Straightening Formaldehyde-Free w/ L-Cysteine Treatment 6-Duos 16oz / 500ml by keratin usa
- **How much does it cost?** 16039 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/34989690-keratin-hair-straightening-formaldehyde-free-w-l-cysteine-treatment-6)

## Best For

- keratin usa enthusiasts

## Why This Product

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

## Description

KeratinUSA Hair-Straightening Formaldehyde-Free Enhanced Formula with L-Cysteine Treatment Benefits: Botanical and Formaldehyde-Free treatment; Lasts up to 3 months; Restores hair to its natural state; Controls hair loss; Blocks the effects of humidity; Creates luminous shine; Repairs and moisturizes damaged hair; Eliminates frizz and curls; Emits no unpleasant odor; Can be used on all hair types.

## Features

- KeratinUSA Hair-Straightening Enhanced Formula Treatment is a formaldehyde-free keratin and protein hair-straightening and restoration system with L-cysteine, hydrolyzed keratin, silk, collagen, vitamins, minerals, and organic and natural ingredients.
- Apply this treatment for 1 hour for fine, highlighted or brittle hair and wash with after-care shampoo and daily deep treatment. For extremely curly hair, it can be applied for up to 8 hours.
- Keratin and Protein Hair-Straightening Enhanced Formula Treatment straightens your hair while replenishing the condition of the hair without damaging or changing the molecular structure. It helps to restore hair to its natural state, controls hair loss, and manages frizzy, weak, coarse hair.
- This treatment is not a permanent straightening but a smoothing treatment that can be used on all hair types such as chemically treated, colored, permed, relaxed, straightened, highlighted, and bleached with results that last up 3 months and fade away gradually as hair is shampooed.
- This collection includes: 6 Units, Pre-Treatment Clarifying Shampoo Enhanced Formula 16oz / 500ml; 6 Units, Keratin Hair-Straightening Formaldehyde-Free Treatment Enhanced Formula 16oz / 500ml.

## Images

![Keratin Hair-Straightening Formaldehyde-Free w/ L-Cysteine Treatment 6-Duos 16oz / 500ml - Image 1](http://ecx.images-amazon.com/images/I/51mJKSakJwL.jpg)
![Keratin Hair-Straightening Formaldehyde-Free w/ L-Cysteine Treatment 6-Duos 16oz / 500ml - Image 2](http://ecx.images-amazon.com/images/I/41FqCYQ2iWL.jpg)
![Keratin Hair-Straightening Formaldehyde-Free w/ L-Cysteine Treatment 6-Duos 16oz / 500ml - Image 3](http://ecx.images-amazon.com/images/I/617Os073SpL.jpg)
![Keratin Hair-Straightening Formaldehyde-Free w/ L-Cysteine Treatment 6-Duos 16oz / 500ml - Image 4](http://ecx.images-amazon.com/images/I/31df18uZeuL.jpg)

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**Shop now:** [https://www.desertcart.dk/products/34989690-keratin-hair-straightening-formaldehyde-free-w-l-cysteine-treatment-6](https://www.desertcart.dk/products/34989690-keratin-hair-straightening-formaldehyde-free-w-l-cysteine-treatment-6)

---

*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-02-09*