---
product_id: 641052009
title: "Protein Smoothing Single Step 500ml (16.91 fl oz)"
brand: "let me be"
price: "€ 76.07"
currency: EUR
in_stock: true
reviews_count: 13
url: https://www.desertcart.ie/products/641052009-protein-smoothing-single-step-500ml-16-91-fl-oz
store_origin: IE
region: Ireland
---

# One-step fast application Protein & keratin enriched 500ml pro-size bottle Protein Smoothing Single Step 500ml (16.91 fl oz)

**Brand:** let me be
**Price:** € 76.07
**Availability:** ✅ In Stock

## Summary

> ✨ Unlock salon-smooth hair in one step—because your hair deserves the VIP treatment!

## Quick Answers

- **What is this?** Protein Smoothing Single Step 500ml (16.91 fl oz) by let me be
- **How much does it cost?** € 76.07 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/641052009-protein-smoothing-single-step-500ml-16-91-fl-oz)

## Best For

- let me be enthusiasts

## Why This Product

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

## Key Features

- • **Salon-Grade Volume:** Generous 500ml bottle designed for multiple treatments—ideal for home or pro use.
- • **Frizz-Free Shine All Day:** Say goodbye to flyaways and hello to polished, glossy hair that commands attention.
- • **Universal Hair Compatibility:** Perfectly smooths straight, wavy, or textured hair for a sleek, professional finish.
- • **Damage-Free Brazilian Formula:** Formaldehyde-free, protein-rich treatment that strengthens hair while taming curls and frizz.
- • **Effortless One-Step Smoothing:** Transform your hair with a single, quick application—no pre-wash needed.

## Overview

Let Me Be Protein Smoothing Single Step is a 500ml professional-grade Brazilian keratin treatment that smooths, strengthens, and adds shine to all hair types in one easy application. Its formaldehyde-free, protein-enriched formula reduces frizz and flyaways without damaging hair, delivering long-lasting, salon-quality results without the hassle of pre-washing.

## Description

Discover beautiful hair and wake up with luscious hair everyday with the Original Brazilian Formula Keratin Treatment LET ME BE. Save yourself the countless hours & damage of blow dryers & hair straighteners with the Brazilian Keratin Treatment.
This treatment allows you to reduce curls and frizz and transforms your hair back to its original curl pattern, so you never have to worry about permanently straightening. Unlike a relaxer this treatment will not damage your hair. Effective protection of hair damage. It’s long-lasting effect keeps your hair smooth and shiny. Let Me be keratin hair straightening one step treatment is a sought after product in today’s professional salon market. The kit includes a 500ml/16.91oz.
Smooth and straighten your hair easily with the formaldehyde free formulation formula. We have a unique and exclusive formulation developed with a blend of amino acids and proteins that, in synergy, give the desired result. Great for men & women
Brazilian Formula
Straightening Hair
Frizz Free
Intensive Shine
Alignment of the Capillary Fiber
Fast & simple to use, 1 step easy application will result in beautiful hair. It instantly will give your hair moisture, strength, vitality, and add a long lasting shine, reducing the Frizz with just a single Product.
Our Brazilian Hair Treatment is a unique formula with high quality ingredients.
Best of all, Let Me Be treated hair can be washed after application treatment as opposed to other brands' required 4 day wait! This kit is good for a single treatment. Authentic Original Formula Brazilian product direct from Brazilian Let Me Be factory!

## Features

- One-Step Smoothing Treatment: Designed for easy application, this protein and keratin-based system helps enhance the appearance of smooth, manageable hair in a single step
- Supports Shine and Frizz Control: Helps reduce the look of frizz and flyaways while improving shine and softness for a more polished appearance
- Suitable for All Hair Types: Works effectively on straight, wavy, or textured hair for those looking to maintain a sleek and well-groomed finish
- No Pre-Wash Needed: Apply directly to dry hair, simplifying your haircare routine without the need for pre-treatment washing
- Professional-Size Bottle: 500ml or 16.91 fl.oz format offers multiple uses at home or in a salon setting for long-lasting hair maintenance
- Protein and Keratin Formula: Enriched with protein and keratin ingredients that help support the appearance of healthier-looking, smoother hair with continued use

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Asin | B07LHHB6CY |
| Best Sellers Rank | #31 in Chemical Hair Straighteners |
| Item Model Number | PU500 |
| Product Dimensions | 2.76 x 2.76 x 8.66 inches; 1.1 pounds |
| Upc | 751320787101 |

## Product Details

- **Brand:** Let Me Be
- **Hair Type:** Curly, Straight
- **Item Form:** Cream
- **Item Weight:** 0.5 kg
- **Product Benefits:** Smoothing

## Images

![Protein Smoothing Single Step 500ml (16.91 fl oz) - Image 1](https://m.media-amazon.com/images/I/41L0J9iYu1L.jpg)

## Questions & Answers

**Q: Treatment. Y paso único es lo mismo  ? La botella se ve diferente**
A: El q yo compre ew Paso Unico" y no dice Tratamiento, asi q deben ser diferentes.

**Q: I received the package is broken and the product is out and when it weighs not 500ml what should I do in this case?**
A: Looking on Internet

**Q: Can this be used on processed hair?**
A: I had keratine and Botox before

**Q: How long is the product good for? (expiration)**
A: Hello, the expiration date is May 2025.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Customizable Salon-Smooth Results That Last for Months
*by  on Reviewed in the United States January 11, 2026*

I’ve used the Let Me Be Hair Keratin Treatment twice, with a 4-month gap between applications, and I’m very impressed with the results.The first time, I left it on my hair for 1 hour, and the result was a very sleek, ultra-straight, frizz-free finish with intense shine—definitely a strong, salon-level smoothing effect. While I loved the results, I realized I wanted something a bit more natural for everyday wear.For the second application, done four months later, I left it on for only 30 minutes, and this gave me exactly what I was looking for: smooth, frizz-free hair with movement, softness, and shine, without looking overly flat or stiff.Another big plus is that my hair did not become dry over time, even months after using the treatment, which is very important to me when it comes to any smoothing or keratin product.The application process is simple and straightforward. I washed my hair with a regular shampoo, applied the product, let it process for 30 minutes, rinsed only, and then finished with a blow-dry and flat iron. Easy to do at home and very effective.✨ Pros:• Customizable results depending on processing time• Excellent frizz reduction• Soft, shiny, and hydrated hair• No dryness even months later• Easy application and great yield⚠️ Cons:• The smell bothered me a bit on the first day after application• Since I color my hair, I noticed some color fading - the video I posted clearly shows how much my hair color faded after using this productOverall, this is a very effective keratin treatment that delivers professional-looking results and long-lasting smoothness. I highly recommend it for anyone looking to reduce frizz, boost shine, and achieve smoother hair with control over the final result.

### ⭐⭐⭐⭐⭐ I love it
*by  on Reviewed in the United States July 22, 2026*

Absolutely recommend, my hair looks amazing to shiny and healthy, I love it!❤️

### ⭐⭐⭐⭐⭐ Lo recomiendo
*by  on Reviewed in the United States August 1, 2026*

Excelente

## Frequently Bought Together

- Let Me Be Hair Keratin Treatment: Brazilian Protein Smoothing, Moisturizing, Frizz-Free, & Intensive Shine in a Single Step. Effective 500ml/16.91oz for Straight, Lustrous Hair
- Let Me Be Pro Repair Ultra Mask 500g – Single Step Hair Treatment for Professional Repair and Nourishment – Restores Dry, Damaged Hair and Boosts Shine
- Let Me Be Protein Home Care Shampoo 240ml – Post-Progressive Smoothing Shampoo for Frizz Control, Shine & Hydration – Protein & Collagen-Enriched Formula for All Hair Types

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---

*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-09-21*