HydroSal® SalSilk

PID# 8392-12

A technology to reverse the signs of hair aging.

  • Visibly denser hair with more volume
  • Improves natural shine, silkiness, and manageability
  • Provides thermal and environmental protection, Contains retains style (anti-frizz)


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HS SLK restores natural shine, repairs damage, helps maintain healthy hair appearance, and battles thinning hair. Thinning hair is problem during aging for women and men everywhere, especially women in the post-menopausal phase of their life.

How the Technology Helps You

HS SLK is a sub-micron sphere designed to deliver keratin. The keratin is infused within the porous core, which is encapsulated by a polymeric shell. The shell is designed to enhance adhesion of keratin complex to the hair and prolong its benefits.

Unique Features

  1. Noticeably Healthier Hair Makes hair look thicker and
    smoother, with vibrant natural shine,
    silkiness, and greater manageability.
  2. Environmentally Safe and hair-friendly. Provides thermal
    protection and adds volume while
    minimizing frizz.
  3. Suitable For Daily Use at home with salon-quality results.
    Can be used in shampoos,
    conditioners, serums, and more.


Raw HydroSal® SalSilk

Using Keratin in Hair Products

Keratin is a natural protein that acts as a key structural component of hair and provides its overall healthy appearance. Age and exposure to chemicals depletes keratin.
Replenishing hair with keratin is not simple. Keratin does not readily adhere to hair without being chemically processed with chemical cross-links such as formaldehyde, which is a toxic substance. HS SLK offers a new technology for replenishing hair with keratin.

Before (A) and after (B) application of a HS SLK rinse-off conditioner. HS SLK technology coats and seals the hair shaft, which provides immediate protection and lasting shine.

SEM picture of untreated hair strand (A) and HS SLK treated hair strand (B).

Technical Data

Appearance @ 20°C
Opaque liquid
Suitable for hair care products such as sprays, conditioners, shampoos, and serums
pH (1 % solution)
5.0 ± 1.0
Shelf Life
Usage Level (wt%)
Storage (°C)
Closed container at 12-32°

Increased Hair Thickness

HS SLK coats the hair shaft, resulting in increased hair thickness and making it look healthier, stronger, and fuller.

A study was done to determine the benefit of HS SLK when used in a rinse-off hair conditioner application as compared to free keratin and a market product (Goldwell Kerasilk). The results show that the diameter of hair strands treated with HS SLK increased six-fold compared to free keratin, while the market product resulted in a decrease in hair thickness of approximately 85 microns.

Average change in thickness of hair strands post-rinse after treatment from rinse-off applications (n=10).

Nourishing Hair Serum Formula

(W/W %)
Polyquaternium 10
Polysorbate 20
SalSphere® Hair Stimulator
HydroSal® SalSilk
DI Water