---
product_id: 651084274
title: "Onion Keratin DuoBox 120ml – Deep Repair & Smoothing for Dry, Damaged Hair, Frizz Control & Heat Protection with Biotin & Rosemary | Dry, Damaged Hair, Frizz Control, Heat Protection"
brand: "natural sant"
price: "211 Lei"
currency: RON
in_stock: true
reviews_count: 8
category: "Natural Sant"
url: https://www.desertcart.ro/products/651084274-onion-keratin-duobox-120ml-deep-repair-and-smoothing-for-dry
store_origin: RO
region: Romania
---

# Natural keratin with onion, rosemary & biotin Heat protection & frizz control 90% straight hair for 4-6 months Onion Keratin DuoBox 120ml – Deep Repair & Smoothing for Dry, Damaged Hair, Frizz Control & Heat Protection with Biotin & Rosemary | Dry, Damaged Hair, Frizz Control, Heat Protection

**Brand:** natural sant
**Price:** 211 Lei
**Availability:** ✅ In Stock

## Summary

> ✨ Unlock your hair’s natural power with every wash! ✨

## Quick Answers

- **What is this?** Onion Keratin DuoBox 120ml – Deep Repair & Smoothing for Dry, Damaged Hair, Frizz Control & Heat Protection with Biotin & Rosemary | Dry, Damaged Hair, Frizz Control, Heat Protection by natural sant
- **How much does it cost?** 211 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/651084274-onion-keratin-duobox-120ml-deep-repair-and-smoothing-for-dry)

## Best For

- natural sant enthusiasts

## Why This Product

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

## Key Features

- • **Safe & Clean Beauty:** Paraben, salt, and formaldehyde-free formula ensures gentle yet effective hair care.
- • **Deep Repair & Strength:** Keratin deeply nourishes and repairs dry, damaged strands for resilient hair health.
- • **Heat Shield Technology:** Protects hair from heat styling damage while maintaining smoothness and shine.
- • **Salon-Grade Smoothness:** Achieve sleek, frizz-free hair that lasts up to 6 months with 90% straightness.
- • **Power-Packed Natural Formula:** Infused with antioxidant-rich onion, rosemary, and biotin for stronger, shinier hair.

## Overview

NATURAL SANT Onion Keratin DuoBox is a 120ml professional-grade hair treatment designed to deeply repair, smooth, and straighten dry, damaged hair. Enriched with natural keratin, onion extract, rosemary, and biotin, it delivers up to 6 months of 90% straight, frizz-free hair while providing heat protection and promoting healthy hair growth. Free from parabens, salts, and formaldehyde, this formula offers a safe, nourishing solution for long-lasting shine and strength.

## Description

desertcart.com: NATURAL SANT - Onion Keratin DuoBox 120ml – Deep Repair & Smoothing for Dry, Damaged Hair, Frizz Control & Heat Protection with Biotin & Rosemary | Dry, Damaged Hair, Frizz Control, Heat Protection : Beauty & Personal Care

Review: Nice smell - Good for hair growth
Review: Tenía mis dudas con este producto acerca del olor , pero nada que ver ya he comprado varios porque es demasiado bueno para mi cabello lo amo !

## Features

- Onion, Rosemary and Biotin Keratin Hair straightening: Achieve sleek, smooth, and straight hair with our onion, rosemary and biotin Keratin Hair Straightening. Infused with the goodness of keratin and onion extract, this powerful formula tames frizz, boosts shine, and promotes long-lasting smoothness. Perfect for those seeking a polished, frizz-free look.
- Strengthening Keratin: Restore and strengthen your hair with our Duobox Keratin for an immediate straight hair with some steps you must follow. Formulated with natural keratin, it deeply nourishes and repairs, leaving your hair stronger, shinier, and free of frizz. The ideal steps for healthier, more manageable hair.
- Nourishing Onion, Rosemary and Biotin extracts: Packed with antioxidants, our Onion Shampoo promotes healthy hair growth, reduces breakage, and adds a natural, radiant shine. This formula is enriched with biotin and rosemary, ensuring your hair gets the best natural care. Experience the power of natural extracts for visibly healthier hair.
- Long-lasting straight hair: Our innovative Onion Duobox keratin will last for about 4 to 6 months in your hair and will leave a 90% straight hair. This natural-based keratin will work as a shield for your hair from environmental stressors, ensuring your locks stay healthy, shiny, and strong over time. Paraben free, salt free and formaldehyde free: These characteristics will keep your hair safe from damage, will help to promote hair shine and softness.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B0D7MTV83X |
| Best Sellers Rank | #47,989 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #15 in Chemical Hair Straighteners |
| Customer Reviews | 4.1 4.1 out of 5 stars (280) |
| Manufacturer  | Naturalsant |
| Package Dimensions  | 5.75 x 3.03 x 2.32 inches; 13.12 ounces |

## Product Details

- **Brand:** Natural sant
- **Hair Type:** All
- **Item Form:** Liquid
- **Item Weight:** 0.37 Kilograms
- **Product Benefits:** Straightening

## Images

![Onion Keratin DuoBox 120ml – Deep Repair & Smoothing for Dry, Damaged Hair, Frizz Control & Heat Protection with Biotin & Rosemary | Dry, Damaged Hair, Frizz Control, Heat Protection - Image 1](https://m.media-amazon.com/images/I/81wrwFNcA7L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nice smell
*by E***I on January 17, 2026*

Good for hair growth

### ⭐⭐⭐⭐⭐ Review
*by Y***A on January 5, 2026*

Tenía mis dudas con este producto acerca del olor , pero nada que ver ya he comprado varios porque es demasiado bueno para mi cabello lo amo !

### ⭐ Not worth a penny!
*by T***A on December 9, 2025*

Absolute garbage. It does not work, makes hair really stiff and on top of that it strips off the hair color! Do not buy! I bought one on wish years ago, it was strong and smelled nasty but it did the job.

## Frequently Bought Together

- Natural Sant Keratin Hair Treatment Onion Duobox 120 ml - Onion, Rosemary and Biotin Straightener, Deep Repair Conditioning, for Dry or Damaged Hair
- NATURAL SANT - Onion Biotin and Rosemary Shampoo & Treatment Set for Stronger, Thicker and Longer Hair - Soft and Shine, Hair Loss and Thinning Hair, Growth Shampoo, Paraben Free, Silicone Free
- Natural Sant - Liso Vital duo kit - Shampoo & Leave-In Conditioner, Anti Frizz, Heat Protectant for Hair with Red onion extract, Biotin & Rosemary

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**Shop now:** [https://www.desertcart.ro/products/651084274-onion-keratin-duobox-120ml-deep-repair-and-smoothing-for-dry](https://www.desertcart.ro/products/651084274-onion-keratin-duobox-120ml-deep-repair-and-smoothing-for-dry)

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-05*