---
product_id: 16487131
title: "BioSilk Silk Therapy Original, Reconstructing Leave-In Hair Treatment, Adds Shine, Smooths & Prevents Split Ends, Sulfate-Free, Paraben-Free, Cruelty-Free, 12 Oz"
brand: "biosilk"
price: "NZ$81"
currency: NZD
in_stock: true
reviews_count: 13
category: "Bio Silk"
url: https://www.desertcart.nz/products/16487131-biosilk-silk-therapy-original-reconstructing-leave-in-hair-treatment-adds
store_origin: NZ
region: New Zealand
---

# Boosts shine & smoothness 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, 12 Oz

**Brand:** biosilk
**Price:** NZ$81
**Availability:** ✅ In Stock

## Summary

> ✨ Elevate your hair game with silk-smooth confidence! 💧

## 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, 12 Oz by biosilk
- **How much does it cost?** NZ$81 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/16487131-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

- • **All-Day Shine Boost:** Delivers a radiant, glossy finish that turns heads
- • **Silk-Powered Repair:** Infuses silk proteins to rebuild and strengthen every strand
- • **Universal Hair Harmony:** Perfectly crafted for all hair types, from straight to textured
- • **Clean Beauty Commitment:** Sulfate-free, paraben-free, and cruelty-free for guilt-free glam
- • **Frizz & Split End Fighter:** Prevents damage and tames frizz for flawless hair

## Overview

BioSilk Silk Therapy Original is a 12 oz leave-in hair treatment enriched with silk proteins, vitamin E, and amino acids. Designed for all hair types, it repairs damage, prevents split ends, reduces frizz, and adds lasting shine—all without sulfates, parabens, or animal testing. Lightweight and versatile, it works on wet or dry hair to deliver smooth, healthy-looking locks with a luxurious amber scent.

## Description

Ideal for all hair types.Fills voids in cuticle to create smooth hair.Leave in replenishing & reconstructing treatment.Aids in preventing split ends, provides incredible shine.

Review: Dime size is all you need for AMAZING, SMOOTH, SPLIT ENDS CLOSED results! - This stuff is absolutely amazing! My hairdresser had used it in me in my 20's and not until recently had I used it again. A friend had purchased this for me for my birthday and I can't believe what a dramatic change it does to my fine, limp hair. Just a dime size will do (wait til your hair is damp but not wet for best results otherwise you end up with the greasy look). It might seem a bit pricey, but a little goes a long way. It will give you shine like no tomorrow plus close any split ends that you may have. I'm absolutely in love with this product and am so happy to be reunited with it once again. Highly recommend to everyone regardless of texture or hair follicles. It really IS miracle cure and an instant styler for all.
Review: Silky & smooth hair in humid weather. - I have extremely long hair. This is the only product (and I’ve tried dozens) that keeps my hair silky and smooth without being greasy. Works fantastic in humid weather. A little goes a long way. Use in damp hair. Not wet or dry.

## 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 | B002JLUY2M |
| Active Ingredients | vitamin e,amino acids |
| Additional Features | Not Tested On Animals |
| Age Range (Description) | Adult,Teen |
| Age Range Description | Adult,Teen |
| Best Sellers Rank | #3,080 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #18 in Hair Treatment Masks |
| Brand | BioSilk |
| Brand Name | BioSilk |
| Customer Reviews | 4.8 out of 5 stars 25,695 Reviews |
| Global Trade Identification Number | 00633911744956 |
| Hair Conditioner Type | Leave-In Hair Conditioner |
| Hair Type | All |
| Item Dimensions | 3 x 1.75 x 9.5 inches |
| Item Form | Lotion |
| Item Type Name | Leave-In Treatment |
| Item Weight | 0.52 Grams |
| Liquid Volume | 12 Fluid Ounces |
| Manufacturer | BioSilk |
| Manufacturer Part Number | BSST12 |
| Material Feature | B002JLUY2M |
| Material Features | B002JLUY2M |
| Material Type Free | Paraben Free |
| Model Number | BSST12 |
| Number of Items | 1 |
| Product Benefits | Shining, Smoothening, Split Ends Repair |
| Recommended Uses For Product | All Hair Types |
| Scent Name | Amber |
| Size | 12 Fl Oz (Pack of 1) |
| Special Ingredients | Vitamin E |
| UPC | 633911744956 |
| Unit Count | 12 Fluid Ounces |

## Product Details

- **Brand:** BioSilk
- **Hair Type:** All
- **Item Form:** Lotion
- **Material Feature:** B002JLUY2M
- **Product Benefits:** Shining, Smoothening, Split Ends Repair

## Images

![BioSilk Silk Therapy Original, Reconstructing Leave-In Hair Treatment, Adds Shine, Smooths & Prevents Split Ends, Sulfate-Free, Paraben-Free, Cruelty-Free, 12 Oz - Image 1](https://m.media-amazon.com/images/I/41Jchn-fPYL.jpg)

## Questions & Answers

**Q: Is this product 100% authentic?**
A: After seeing this question, a further investigation was made and a comparison with the one from a local beauty shop definitely indicates that it is thinned out and not the “real thing”, not 100% authentic, in my opinion.

**Q: Why is this 17.99 and same item is $34?**
A: >> Why is this 17.99 and same item is $34?

The wholesale price we get from the manufacturer is DEFINITELY MUCH higher than $17.99.
Take a chance when you buy such items.  Counterfeits are everywhere in eBay and Amazon.

**Q: CN I use this on dry hair?**
A: I use it only on dry hair.  I have curly hair and apply it every morning and as needed throughout the day if I’m out in humid weather.  It keeps it from getting frizzy and stays smooth most of the day. Just don’t put it close to your roots or it will look greasy.

**Q: Why are A batteries required???**
A: It doesn’t. There must have been a typo in the listing.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Dime size is all you need for AMAZING, SMOOTH, SPLIT ENDS CLOSED results!
*by L***R on June 4, 2026*

This stuff is absolutely amazing! My hairdresser had used it in me in my 20's and not until recently had I used it again. A friend had purchased this for me for my birthday and I can't believe what a dramatic change it does to my fine, limp hair. Just a dime size will do (wait til your hair is damp but not wet for best results otherwise you end up with the greasy look). It might seem a bit pricey, but a little goes a long way. It will give you shine like no tomorrow plus close any split ends that you may have. I'm absolutely in love with this product and am so happy to be reunited with it once again. Highly recommend to everyone regardless of texture or hair follicles. It really IS miracle cure and an instant styler for all.

### ⭐⭐⭐⭐⭐ Silky & smooth hair in humid weather.
*by #***T on April 28, 2026*

I have extremely long hair. This is the only product (and I’ve tried dozens) that keeps my hair silky and smooth without being greasy. Works fantastic in humid weather. A little goes a long way. Use in damp hair. Not wet or dry.

### ⭐⭐⭐⭐⭐ Thick texture but no heaviness, just shine
*by M***O on April 6, 2026*

I was really surprised by the size of the bottle — you get a lot of product, and since you only need a small amount, I can tell this will last a long time. The smell is something I love, it smells really good and fresh. The texture is pretty thick, like a heavier oil, but once you apply it, your hair doesn’t feel heavy at all. That honestly surprised me. My hair tends to look dull, especially at the ends, and this made a big difference. I love how it brings shine back to my hair, helps with frizz, and even makes my split ends look less noticeable. The shine it gives is honestly impressive without making my hair look greasy. Overall, I love how my hair looks and feels after using this — softer, shinier, and more manageable.

## Frequently Bought Together

- BioSilk Silk Therapy Original Cure, Reconstructing Treatment For Adding Shine & Helping Prevent Split Ends, Sulfate, Paraben, & Cruelty-Free, 12 Oz
- CHI 44 Iron Guard Thermal Protection Spray, Nourishing Formula Helps Resist Heat Damage to Hair & Tame Frizz, Clear, 8 Oz
- BioSilk Hydrating Therapy Pure Moisture Leave-In Spray, Replenishes Hair Moisture & Protects From Frizz, Sulfate, Paraben, & Cruelty-Free, 7 Oz

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---

*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-06-18*