---
product_id: 47115087
title: "BioSilk Silk Therapy Original, Reconstructing Leave-In Hair Treatment, Adds Shine, Smooths & Prevents Split Ends, Sulfate-Free, Paraben-Free, Cruelty-Free, 7 Oz"
brand: "biosilk"
price: "€ 47.32"
currency: EUR
in_stock: true
reviews_count: 13
category: "Bio Silk"
url: https://www.desertcart.sk/products/47115087-biosilk-silk-therapy-original-reconstructing-leave-in-hair-treatment-adds
store_origin: SK
region: Slovakia
---

# Rebuilds & strengthens hair Sulfate & paraben-free, cruelty-free Weightless leave-in formula BioSilk Silk Therapy Original, Reconstructing Leave-In Hair Treatment, Adds Shine, Smooths & Prevents Split Ends, Sulfate-Free, Paraben-Free, Cruelty-Free, 7 Oz

**Brand:** biosilk
**Price:** € 47.32
**Availability:** ✅ In Stock

## Summary

> ✨ Unlock your hair’s ultimate glow-up with BioSilk Silk Therapy! 💧

## Quick Answers

- **What is this?** BioSilk Silk Therapy Original, Reconstructing Leave-In Hair Treatment, Adds Shine, Smooths & Prevents Split Ends, Sulfate-Free, Paraben-Free, Cruelty-Free, 7 Oz by biosilk
- **How much does it cost?** € 47.32 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/47115087-biosilk-silk-therapy-original-reconstructing-leave-in-hair-treatment-adds)

## Best For

- biosilk enthusiasts

## Why This Product

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

## Key Features

- • **Multi-Tasking Magic:** Use on wet or dry hair to detangle, condition, add shine, and shield from heat & environmental stress.
- • **Silk-Powered Repair:** Infuses silk proteins to smooth, strengthen, and protect without weighing hair down.
- • **Universal Hair Love:** Gentle, effective formula perfect for every hair type—straight, curly, fine, or textured.
- • **Clean & Conscious Beauty:** Sulfate-free, paraben-free, gluten-free, and cruelty-free for guilt-free glam.
- • **Frizz & Split End Fighter:** Reduces frizz and prevents split ends for a polished, healthy look all day long.

## Overview

BioSilk Silk Therapy Original is a 7 oz weightless leave-in hair treatment enriched with hydrolyzed silk proteins that repair, smooth, and protect all hair types. This sulfate-, paraben-, gluten-free, and cruelty-free formula reduces frizz, prevents split ends, and adds lasting shine without heaviness. Trusted for over 35 years, it’s a multi-purpose solution for detangling, conditioning, and heat protection, delivering nourished, glossy hair with a fresh, light scent.

## Description

BioSilk Silk Therapy Original is a weightless leave-in silk replenishing and reconstructing treatment that helps repair, smooth and protect all hair types.

Review: Glass like shine - Nothing makes my hair shine like Biosilk. Finding a product to give my bleached to within an inch of its life hair any small anount of shine makes me happy...but so many of them come with a down side of weighing my hair down or leaving it over oily/greasy. Biosilk makes my hair stronger, softer, glossy and bouncy, I would even say it is completely weightless. Controls frizz, detailed and prevents tangles, keeps my hair looking its best. Biosilk has given me Nourished, healthy, shiny hair, period. No smoke or mirrors with this one. It does what it says, and it also smells absolutely lovely. Light and fresh and clean, no cloying or annoying fragrance and doesn't leave any noticeable buildup to weigh my hair down. Just shine and control for days. If I could only have one hair product for the rest of my days I would be hard pressed not to pick this. It does so much in such a small amount, that the price is totally worth it. One bottle lasts me close to 6 months! If you havent yet tried this, do it. There is a reason it has been around forever. I have been coming back to biosilk again and again for at least 20 yrs. it is the best.
Review: Very good product - This works very well in my hair.you only need alittle to make it manageable,take away any freezieness and helps to detangle.it has a very nice fresh scent.

## Features

- WEIGHTLESS LEAVE‑IN TREATMENT: Silk Therapy Original infuses hair with silk proteins to repair, smooth, and protect strands without heaviness.
- REPAIRS & STRENGTHENS: Helps rebuild damaged hair, prevent split ends, reduce frizz and improve shine for healthier‑looking hair.
- ALL‑HAIR TYPES FORMULA: Gentle, cruelty‑free, sulfate‑ and paraben‑free treatment suitable for straight, wavy, curly, fine or textured hair.
- MULTI‑PURPOSE CARE: Use on wet or dry hair to detangle, condition, add shine, and help protect from heat and environmental stress.
- BIOSILK: The quest for healthier hair is how BioSilk Silk Therapy emerged in 1986. The creation of the BioSilk Silk Therapy Original treatment has led to the development of a full range of BioSilk hair products.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0744QZ8P7 |
| Active Ingredients | Cyclopentasiloxane, Cyclotetrasiloxane, Dimethiconol, Cyclohexasiloxane, Alcohol Denat, C12-15 Alkyl Benzoate, Phenoxyethanol, Panthanol, Ethyl Estedr of Hydrolyzed Silk, Fragrance, Benzyl Benzoate, Hexyl Cinnamal, Linalool, Alpha-Isomethyl Ionoe, Citronellol, Gerniol, Hydroxycitronellal, Butylphenyl Methylpropional, Eugenol, BCC12-Base |
| Additional Features | Not-Applicable |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Best Sellers Rank | #2,342 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #268 in Hair Treatment Masks |
| Brand | BioSilk |
| Brand Name | BioSilk |
| Customer Reviews | 4.8 out of 5 stars 1,267 Reviews |
| Global Trade Identification Number | 00633911791202 |
| Hair Conditioner Type | Leave-In Hair Conditioner |
| Hair Type | All |
| Item Dimensions | 1.3 x 7.8 x 8.6 inches |
| Item Form | Cream |
| Liquid Volume | 7 fluid ounces |
| Manufacturer | Biosilk |
| Manufacturer Part Number | BSST07 |
| Material Feature | Gluten Free |
| Material Features | Gluten Free |
| Material Type Free | Paraben Free |
| Model Number | BSST07 |
| Number of Items | 1 |
| Package Type Name | Bottle |
| Product Benefits | Nourishing |
| Recommended Uses For Product | All Hair Types,Leave In,Leave-in |
| Scent Name | Fresh |
| Size | 7 Fl Oz (Pack of 1) |
| Special Ingredients | Hydrolyzed Silk, Paraben Free, Gluten Free |
| UPC | 633911791202 |
| Unit Count | 7 Fluid Ounces |

## Product Details

- **Brand:** BioSilk
- **Hair Type:** All
- **Item Form:** Cream
- **Material Feature:** Gluten Free
- **Product Benefits:** Nourishing

## Images

![BioSilk Silk Therapy Original, Reconstructing Leave-In Hair Treatment, Adds Shine, Smooths & Prevents Split Ends, Sulfate-Free, Paraben-Free, Cruelty-Free, 7 Oz - Image 1](https://m.media-amazon.com/images/I/51atYJOgkQL.jpg)
![BioSilk Silk Therapy Original, Reconstructing Leave-In Hair Treatment, Adds Shine, Smooths & Prevents Split Ends, Sulfate-Free, Paraben-Free, Cruelty-Free, 7 Oz - Image 2](https://m.media-amazon.com/images/I/61F9FF4fadL.jpg)
![BioSilk Silk Therapy Original, Reconstructing Leave-In Hair Treatment, Adds Shine, Smooths & Prevents Split Ends, Sulfate-Free, Paraben-Free, Cruelty-Free, 7 Oz - Image 3](https://m.media-amazon.com/images/I/71koHGd7zML.jpg)
![BioSilk Silk Therapy Original, Reconstructing Leave-In Hair Treatment, Adds Shine, Smooths & Prevents Split Ends, Sulfate-Free, Paraben-Free, Cruelty-Free, 7 Oz - Image 4](https://m.media-amazon.com/images/I/61-heG2fXuL.jpg)
![BioSilk Silk Therapy Original, Reconstructing Leave-In Hair Treatment, Adds Shine, Smooths & Prevents Split Ends, Sulfate-Free, Paraben-Free, Cruelty-Free, 7 Oz - Image 5](https://m.media-amazon.com/images/I/71zYKjpd0yL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: Why does it say 1 A battery required??**
A: That is a mistake in the listing. No batteries are required

**Q: Where is this product made ?**
A: USA,   ,Farouk product,  Chicago, I think.  Wonderful stuff!

**Q: Can it be used to silk wrap your hair?**
A: Yes it can I use it all time time depending on how much hair you have. You do not want to use a lot it will weight your hair down I have long hair I use a dime size amount.

**Q: I love this stuff but hate the smell.  It's so overpowering.  Can anyone recommend something similar that doesn't have such a strong smell?**
A: I love this.  The smell is different for each of us.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Glass like shine
*by M***N on August 25, 2024*

Nothing makes my hair shine like Biosilk. Finding a product to give my bleached to within an inch of its life hair any small anount of shine makes me happy...but so many of them come with a down side of weighing my hair down or leaving it over oily/greasy. Biosilk makes my hair stronger, softer, glossy and bouncy, I would even say it is completely weightless. Controls frizz, detailed and prevents tangles, keeps my hair looking its best. Biosilk has given me Nourished, healthy, shiny hair, period. No smoke or mirrors with this one. It does what it says, and it also smells absolutely lovely. Light and fresh and clean, no cloying or annoying fragrance and doesn't leave any noticeable buildup to weigh my hair down. Just shine and control for days. If I could only have one hair product for the rest of my days I would be hard pressed not to pick this. It does so much in such a small amount, that the price is totally worth it. One bottle lasts me close to 6 months! If you havent yet tried this, do it. There is a reason it has been around forever. I have been coming back to biosilk again and again for at least 20 yrs. it is the best.

### ⭐⭐⭐⭐⭐ Very good product
*by L***A on June 20, 2026*

This works very well in my hair.you only need alittle to make it manageable,take away any freezieness and helps to detangle.it has a very nice fresh scent.

### ⭐⭐⭐⭐⭐ Returning customer, this stuff works!
*by A***R on April 14, 2026*

Bio silk is my "go-to" hair oil since I color my own hair. When I was bleaching it blonde, it was much drier than it is now, I am darkening it these days. Nevertheless, my hair still is dry. After shampooing and conditioning, I then put the Biosilk in and leave it in, it allows my pic and my hairbrush to detangle the fine strands of my long hair. I have been using Biosilk for many years because a friend told me it helped get her young daughter's natural curls detangled. It is true. It is the best product I have found to do this. My hair is straight but it still tangles since it is fine. On days when I use a small curling iron and a lot of texture spray to make it curly, I have to use more Biosilk after I wash my hair to get those curls separated. In the past when I used spray in detangler products, I would spend 30 minutes trying to get the tangles out of my hair. With Biosilk, it only takes about five minutes now. It is an amazing product. If you haven't tried it, Amazon is the best place to buy it.

## Frequently Bought Together

- BioSilk Silk Therapy Original, Reconstructing Treatment For Adding Shine & Helping Prevent Split Ends, Sulfate, Paraben, & Cruelty-Free, 7 Oz
- CHI 44 Iron Guard Thermal Protection Spray, Nourishing Formula Helps Resist Heat Damage to Hair & Tame Frizz, Clear, 8 Oz
- CHI Infra Silk Infusion, Leave-In Reconstructing Treatment To Strengthen & Protect All Hair Types, Alcohol-Free, 12 Oz

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-08-23*